chore(release): v2.4.31 - full audit fix pass

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.claude/hooks/block-env.js

@@ -1,14 +1,23 @@
 // Block direct .env file edits (not .env.example, .env.production, .env.test)
-let data = '';
+//
-process.stdin.on('data', chunk => data += chunk);
+// Hook exit-code contract (Claude Code PreToolUse):
-process.stdin.on('end', () => {
+//   exit 0 = allow (stdout JSON is only parsed on exit 0)
+//   exit 2 = BLOCK — the reason must be written to STDERR
+//   any other exit code = non-blocking error (the tool call proceeds)
+// So to actually block, we must print to stderr and exit 2.
+let data = "";
+process.stdin.on("data", (chunk) => (data += chunk));
+process.stdin.on("end", () => {
   try {
     const input = JSON.parse(data);
-    const filePath = input.tool_input?.file_path || '';
+    const filePath = input.tool_input?.file_path || "";
-    const basename = filePath.split('/').pop().split('\\').pop();
+    const basename = filePath.split("/").pop().split("\\").pop();
-    if (basename === '.env') {
+    if (basename === ".env") {
-      console.log(JSON.stringify({ decision: 'block', reason: 'Direct .env edits are blocked. Use .env.example instead.' }));
+      console.error("Direct .env edits are blocked. Use .env.example instead.");
-      process.exit(1);
+      process.exit(2);
     }
-  } catch {}
+  } catch {
+    // Deliberate fail-open: on unparseable input exit 0 (allow). Exiting 2
+    // here would block EVERY Edit/Write if the hook payload format changed.
+  }
 });

.env.example

@@ -1,32 +1,63 @@
-# Database
+# ─────────────────────────────────────────────────────────────────────────
+# boha-app-ts environment template. Copy to `.env` (dev) / `.env.test` (tests).
+# Required vars throw at boot if missing; optional vars show their defaults.
+# ─────────────────────────────────────────────────────────────────────────
+
+# ── Required ──────────────────────────────────────────────────────────────
 DATABASE_URL=mysql://user:password@localhost:3306/app
-
-# Server
-PORT=3001
-HOST=127.0.0.1
-APP_ENV=local
-
 # Auth — MUST regenerate for production: openssl rand -hex 32
 JWT_SECRET=REPLACE_WITH_64_CHAR_HEX_STRING_RUN_openssl_rand_hex_32
+# TOTP — MUST regenerate for production: openssl rand -hex 32
+TOTP_ENCRYPTION_KEY=REPLACE_WITH_64_CHAR_HEX_STRING_RUN_openssl_rand_hex_32
+
+# ── Server ────────────────────────────────────────────────────────────────
+PORT=3001                       # production port (dev is hardcoded to 3050)
+HOST=127.0.0.1
+APP_ENV=local                   # local | production — controls CSP/CORS/HSTS
+APP_URL=                        # base URL used in email links
+# TRUST_PROXY=127.0.0.1,::1     # comma-separated trusted proxy IPs
+
+# ── Tokens (seconds) ──────────────────────────────────────────────────────
 ACCESS_TOKEN_EXPIRY=900
 REFRESH_TOKEN_SESSION_EXPIRY=3600
 REFRESH_TOKEN_REMEMBER_EXPIRY=2592000
 
-# TOTP — MUST regenerate for production: openssl rand -hex 32
+# ── TOTP / 2FA (optional, sensible defaults) ──────────────────────────────
-TOTP_ENCRYPTION_KEY=REPLACE_WITH_64_CHAR_HEX_STRING_RUN_openssl_rand_hex_32
+# TOTP_ALGORITHM=SHA1
+# TOTP_DIGITS=6
+# TOTP_PERIOD=30
+# LOGIN_TOKEN_EXPIRY_MINUTES=5
 
-# File storage
+# ── Rate limiting (optional) ──────────────────────────────────────────────
+# RATE_LIMIT_MAX=300
+# RATE_LIMIT_WINDOW=1 minute
+# RATE_LIMIT_LOGIN=20
+# RATE_LIMIT_TOTP=5
+# RATE_LIMIT_REFRESH=10
+
+# ── File storage (NAS network shares) ─────────────────────────────────────
 NAS_PATH=Z:/02_PROJEKTY
-MAX_UPLOAD_SIZE=52428800
+# NAS_INVOICES=                  # invoice PDFs — {base}/Vydané|Přijaté/YYYY/MM/ (falls back to NAS_FINANCIALS_PATH if unset)
+# NAS_ORDERS=                    # issued-order PDF archival — {base}/Vydané/YYYY/MM/ (off until set)
+# NAS_OFFERS_PATH=
+MAX_UPLOAD_SIZE=52428800        # 50 MB
 
-# Email
+# ── Email ─────────────────────────────────────────────────────────────────
 CONTACT_EMAIL_TO=
 CONTACT_EMAIL_FROM=
 SMTP_FROM=
+# SMTP_FROM_NAME=
 LEAVE_NOTIFY_EMAIL=
+# INVOICE_ALERT_EMAIL=          # set to enable the daily 08:00 invoice-alert cron
+# Optional SMTP transport (defaults to local sendmail when SMTP_HOST is unset):
+# SMTP_HOST=
+# SMTP_PORT=587
+# SMTP_SECURE=false
+# SMTP_USER=
+# SMTP_PASS=
 
-# App URL (for email links)
+# ── CORS (production only, comma-separated) ───────────────────────────────
-APP_URL=
-
-# CORS (production only, comma-separated)
 CORS_ORIGINS=
+
+# ── AI assistant "Odin" (optional; feature self-hides when unset) ─────────
+# ANTHROPIC_API_KEY=

.gitignore

@@ -7,6 +7,13 @@ dist/
 dist-client/
 *.css.map
 
+# Build / tooling artifacts
+*.tsbuildinfo
+*.bak
+
+# Local scratch
+.playwright-mcp/
+
 # Release archives
 *.tar.gz
 

.prettierignore

@@ -0,0 +1,7 @@
+dist/
+dist-client/
+node_modules/
+prisma/migrations/
+src/admin/bones/
+*.tsbuildinfo
+package-lock.json

.prettierrc.json

@@ -0,0 +1,7 @@
+{
+  "semi": true,
+  "singleQuote": false,
+  "trailingComma": "all",
+  "tabWidth": 2,
+  "printWidth": 80
+}

AUDIT-2026-06-12.md

@@ -0,0 +1,334 @@
+# Codebase Audit — boha-app-ts — 2026-06-12
+
+## Summary
+
+| Severity     | Count |
+| ------------ | ----: |
+| **Critical** |     3 |
+| **High**     |     6 |
+| **Medium**   |    11 |
+| **Low**      |     8 |
+| **Total**    |    28 |
+
+> 2026-06-12: M3 (offer PDF footer) withdrawn as a false positive after user
+> verification — see the struck section below. Counts updated 12→11 / 29→28.
+
+## Methodology
+
+- **Fan-out discovery:** 27 independent finder passes swept the codebase across domain modules (auth/sessions, attendance/leave, documents — offers/orders/issued-orders/invoices, warehouse, projects, trips/vehicles, plan, users/roles, AI/Odin, settings) and cross-cutting dimensions (Zod-cap-vs-DB-column alignment, date/timezone boundaries, pagination determinism, React Query cache invalidation, transaction atomicity, FK-error→4xx mapping, privilege boundaries).
+- **Dedupe vs prior backlog:** candidate findings were de-duplicated against the existing audit backlog (`docs/codebase-audit-findings-2026-06-06.md`, `docs/cross-module-consistency-audit-2026-06-09.md`, `REVIEW_FINDINGS.md`). Already-fixed items (e.g. the 2026-06-06 sessions audit-logging finding) and already-tracked duplicates were dropped; only net-new defects survived.
+- **3-lens adversarial verification:** every surviving finding was independently re-checked through three lenses — (1) **trace-to-refute** (follow the full code path end-to-end and try to break each step), (2) **convention veto** (confirm it genuinely VIOLATES a documented `CLAUDE.md` convention and is NOT one of the deliberate "looks-like-a-bug" decisions: local-time `toJSON`, local-noon `@db.Date` writes, lenient date schemas, net-only documents, gross `received_invoices.amount`, shared `orders.*` permission family), and (3) **executable repro** (a concrete, developer-runnable reproduction with observable wrong output). A finding ships only with three independent `real` verdicts. Findings the convention lens vetoed (e.g. one warehouse over-issue variant whose exact numbers are blocked by an upstream aggregate guard — kept only after a corrected, reachable repro was supplied) were re-scoped, not waved through.
+
+Order below is by severity, then by blast radius within a severity.
+
+---
+
+## CRITICAL
+
+### C1. Deleting a vacation/sick attendance record never restores the leave balance — `vacation_used` stays permanently inflated
+
+- **Severity:** Critical
+- **File:** `src/services/attendance.service.ts:1751`
+- **Failure scenario:** `createLeave` increments `leave_balances.vacation_used`/`sick_used` when booking leave (lines 1304–1331), but `deleteAttendance` (1751–1772) only runs `prisma.attendance.delete` — it never decrements the balance. `getStatus` (line 246) and `getBalances` (line 530) derive `vacation_remaining = vacation_total - vacation_used` from the stored counter, so cancelling a booked leave by deleting its rows permanently removes entitlement the employee never actually took. The leave-request approval path (`leave-requests.ts`) has the identical asymmetric increment-on-approve / no-decrement-on-delete.
+- **Repro:**
+  1. As an admin (`attendance.manage`), `POST /api/admin/attendance?action=leave` for user 5, `date_from=2026-07-06`, `date_to=2026-07-10`, `leave_type=vacation`, `leave_hours=8` → creates 5 rows and adds 40h to `vacation_used`.
+  2. Read balances: `vacation_used=40`, `vacation_remaining = total-40`.
+  3. `DELETE /api/admin/attendance/:id` for each of the 5 rows.
+  4. Read balances again: rows are gone but `vacation_used` is still 40 and `vacation_remaining` is still down 40h. Only a manual admin `handleBalances` reset fixes it.
+- **Pinning test:** Book a 5-day vacation, assert `vacation_used` rose by 40h, delete all 5 attendance rows, then assert `vacation_used` returned to its pre-booking value (fails today: stays 40).
+
+### C2. `confirmIssue`: duplicate issue lines on the same batch pass per-line validation but decrement cumulatively, driving batch quantity negative (silent over-issue)
+
+- **Severity:** Critical
+- **File:** `src/services/warehouse.service.ts:626`
+- **Failure scenario:** The confirm path validates and decrements stock **per line**, re-reading the batch fresh each iteration with no cross-line running tally and no `if (newBatchQty < 0) throw` guard. Two issue lines for the same item that resolve to the same batch each pass the independent `batch.quantity >= line.quantity` check, then the decrement loop accumulates: line A leaves the batch at 3, line B re-reads 3 and writes `3-5 = -2`, flagging `is_consumed=true`. The negative/consumed batch drops out of `getItemTotalStock` (`is_consumed:false` filter), so the over-issue is silently hidden from all stock totals. No `(issue_id, batch_id)` unique constraint exists on `sklad_issue_lines`.
+- **Repro (corrected — the single-batch case is blocked by the per-item aggregate guard in `validateIssueReservationRules`; use two batches so the per-item total check passes while one batch still goes negative):**
+  1. Seed item X with two unconsumed batches B1(qty 8, older) and B2(qty 8). Total stock = 16.
+  2. `POST /issues` with two lines, both `item_id=X`, no `batch_id`, each `quantity=5`. `selectFifoBatches` is called once per line against the live DB with nothing persisted, so both resolve to B1; the per-item availability check (16 < 10 is false) passes. Draft stores two lines both `batch_id=B1`.
+  3. `POST /issues/:id/confirm` → 200. B1 validated 8≥5 twice (both see original 8), then decremented to 3, then to `-2` with `is_consumed=true`.
+  4. 10 units issued from a batch that held 8; B1 persists at `quantity=-2`, drops from stock totals — 2 units leave with no accounting trail and FIFO is broken, with no error raised.
+- **Pinning test:** Confirm an issue containing two same-item lines whose combined quantity exceeds a single resolved batch; assert the confirm is rejected (400) and no batch row is left with `quantity < 0`.
+
+### C3. `confirmInventorySession` swallows an in-transaction throw with `return` instead of `throw`, committing partial stock writes the route reports as failed
+
+- **Severity:** Critical
+- **File:** `src/services/warehouse.service.ts:1275`
+- **Failure scenario:** The function body is `return prisma.$transaction(async (tx) => { ... })` (line 1108). A single loop over `session.items` interleaves real writes with a throwing op: the surplus branch (diff>0) creates a corrective receipt, receipt line, batch, and upserts `sklad_item_locations`; a later deficit line makes `selectFifoBatches` throw. The catch at line 1275 **returns** `{ error, status: 400 }` from inside the transaction callback. In an interactive Prisma transaction, returning a value (rather than throwing) **commits** — so the surplus item's writes persist while the session→CONFIRMED update (line 1293) is skipped, leaving the session DRAFT. The route sees `"error" in result` and returns HTTP 400 ("nothing changed"). Re-confirming the still-DRAFT session re-runs the loop and re-creates the same surplus batch — repeatable phantom inventory and corrupted valuation on every retry.
+- **Repro:**
+  1. ItemA exists; ItemB has a location row `quantity=10` but fewer unconsumed batches (documented location/batch drift at lines 1244–1250 — also reproducible by consuming batches between session create and confirm).
+  2. `POST /admin/inventory-sessions` with items ordered `[{ItemA surplus, actual_qty 5}, {ItemB deficit, actual_qty 0}]` (ItemA's line gets the lower id, processed first).
+  3. `POST /admin/inventory-sessions/<id>/confirm` → HTTP 400 "Nedostatečné množství na skladě", BUT ItemA now has a permanent +5 corrective batch + bumped `item_location`, and the session is still DRAFT.
+  4. Re-confirm → another +5 for ItemA, fails on ItemB again. Each retry adds +5 phantom stock while the API reports failure.
+- **Pinning test:** Confirm an inventory session whose item list has a valid surplus line before an over-deficit line; assert the response is an error AND no `sklad_receipts`/`sklad_batches` rows were created (transaction rolled back) and the session is unchanged.
+
+---
+
+## HIGH
+
+### H1. Terminating one session force-logs-out ALL of the user's sessions on the terminated device's next refresh
+
+- **Severity:** High
+- **File:** `src/services/auth.ts:280`
+- **Failure scenario:** Session termination (`sessions.ts:94-97` DELETE `/:id`, `sessions.ts:124-131` action=all, `profile.ts:98-101` password-change) sets ONLY `replaced_at` (no `replaced_by_hash`, row not deleted). Legitimate rotation (`auth.ts:315-318`) sets BOTH. The reuse-detection condition at `auth.ts:280-282` is `storedToken.replaced_at || storedToken.replaced_by_hash`, evaluated BEFORE the expiry check at line 292 — so a manually-terminated token presented on a later refresh is misclassified as theft and runs `tx.refresh_tokens.deleteMany({ where: { user_id } })` (line 285), wiping every session for that user, including the laptop the user is actively on, plus a false "reuse detected" warning.
+- **Repro:**
+  1. Log in from two devices → Session A (laptop), Session B (phone), both `replaced_at=null`.
+  2. From the laptop, `DELETE /api/admin/sessions/<B.id>` → B gets `replaced_at` set only.
+  3. After B's access token expires (~15 min), the phone calls `POST /api/admin/refresh` with B's still-present cookie.
+  4. `refreshAccessToken` hits the reuse branch (B's `replaced_at` truthy), deletes ALL of the user's tokens including A. Laptop is silently logged out on its next refresh.
+- **Pinning test:** Create two refresh-token sessions, terminate one via the sessions DELETE route, present the terminated token to `refreshAccessToken`; assert the OTHER session's row still exists (fails today: it is deleted).
+
+### H2. `order_items.description` Zod cap (8000) far exceeds DB column `VarChar(500)` → Prisma 500 on long descriptions
+
+- **Severity:** High
+- **File:** `src/schemas/orders.schema.ts:12`
+- **Failure scenario:** `OrderItemSchema.description = z.string().max(8000)` but `order_items.description` is `@db.VarChar(500)` (`schema.prisma:327`). `createOrder`/`updateOrder` map the value straight into `tx.order_items.createMany` with no truncation. A 501–8000 char description passes Zod, overflows the column under MySQL strict mode (P2000), and `createOrder`'s catch only re-maps errors carrying a `status` property — so it surfaces as HTTP 500 "Interní chyba serveru" instead of a clean Czech 400, with the whole order transaction rolled back.
+- **Repro:** `POST /api/admin/orders` (Content-Type application/json so the manual-JSON branch runs), `items:[{ description: "x".repeat(600), quantity:1, unit_price:100 }]` → HTTP 500 instead of 400; no order persisted. Same on `PUT /api/admin/orders/:id` for an order in `prijata`/`v_realizaci`.
+- **Pinning test:** `parseBody(OrderItemSchema, { description: "x".repeat(600), ... })` should fail Zod with a 400-class error (fails today: passes, then 500s at Prisma). Fix: `.max(500)`.
+
+### H3. Issued-order status transition silently discards unsaved item/section edits and marks them clean
+
+- **Severity:** High
+- **File:** `src/admin/pages/IssuedOrderDetail.tsx:524`
+- **Failure scenario:** A `sent` issued order is both editable AND has valid transitions. `handleStatusChange` (line 516) sends ONLY `{ status: newStatus }`; the server's `replaceItems = editable && Array.isArray(body.items)` is false for a status-only payload, so edited items/sections are never persisted. Worse, line 524 calls `markClean({ form, items, sections })` with the in-memory UNSAVED edits, re-baselining the unsaved-changes guard so `isDirty` flips false and the `beforeunload` warning never fires. After the transition the order is `confirmed` → read-only, so the lost edits cannot be re-applied. (Contrast: `OfferDetail`/`InvoiceDetail` do NOT call `markClean` on transition.)
+- **Repro:** Open a `sent` issued order with `orders.edit`, edit a line item / section / supplier (form dirty), click "Potvrdit" and confirm. The transition succeeds, the edits are silently dropped, and on refetch the items/sections revert to stored values with no warning.
+- **Pinning test:** Render `IssuedOrderDetail` for a `sent` order, mutate an item, invoke a status transition; assert the PUT payload includes the edited `items` (or that the guard stays dirty / a warning is shown) — fails today.
+
+### H4. Received-invoices list is paginated server-side (25/page) but the UI sends no `page` param and renders no Pagination control — rows 26+ are permanently hidden
+
+- **Severity:** High
+- **File:** `src/admin/pages/ReceivedInvoices.tsx:265`
+- **Failure scenario:** `receivedInvoiceListOptions` hits `/received-invoices`, which applies `skip`/`take` with `parsePagination`'s default limit of 25. The component builds the query with no `page`/`perPage`, reads only `listQuery.data?.data` (the first 25 rows), and renders NO `<Pagination>`. The "Celkem" footer is sourced from the separate `/received-invoices/list-totals` over the FULL filtered set, so with 26+ rows the displayed total visibly disagrees with the on-screen rows. The sibling issued-invoices tab (`Invoices.tsx`) correctly uses `usePaginatedQuery` + `<Pagination>`.
+- **Repro:** Seed 26 CZK received invoices in one month. `GET /received-invoices?month=6&year=2026` returns `data.length=25`, `pagination.total=26`; `GET /received-invoices/list-totals?...` returns 26000 CZK. In the UI (Faktury → Přijaté, June 2026) the table shows 25 rows summing to 25000 while the footer shows 26000 — and the 26th invoice is unreachable.
+- **Pinning test:** With 26 received invoices in a month, assert the page requests page 2 (or renders a pager) and that all 26 are reachable — fails today.
+
+### H5. Odin invoice import: Czech-format dates silently corrupt month/year (wrong month or NaN) in `received_invoices`
+
+- **Severity:** High
+- **File:** `src/admin/components/odin/InvoiceReviewCard.tsx:79`
+- **Failure scenario:** The review card exposes "Datum vystavení"/"Datum splatnosti" as free-text fields; `OdinChat.saveInvoice` sends the raw string. The multipart schema validates `issue_date` only as `z.string().max(255).nullish()`, so it passes. The route derives `invoiceMonth = new Date(issue_date).getMonth()+1` / `getFullYear()` with no validity guard. `new Date("15.03.2026")` → Invalid Date → `NaN` (day>12); `new Date("12.6.2026")` → December 2026 (wrong month). NAS save (line 410) runs BEFORE the DB create (line 420), so for the NaN case Prisma rejects into the `UnsignedTinyInt`/`UnsignedSmallInt` columns → HTTP 500 with an orphaned NAS file; for day≤12 it silently files under the wrong month/year.
+- **Repro:** In Odin, edit an extracted invoice's issue date to `15.03.2026` and Save → 500 + orphaned NAS file. Use `12.6.2026` → invoice silently filed under month 12. Equivalent: `POST /api/admin/received-invoices` (multipart) with `issue_date:"15.03.2026"`.
+- **Pinning test:** `POST /received-invoices` with `issue_date="15.03.2026"` should return a 400 (or normalize) — fails today (500 + NaN write). Fix: use `isoDateString` coercion / validity guard.
+
+### H6. Leave-request approval charges vacation/sick balance for Czech public holidays that fall inside the range
+
+- **Severity:** High
+- **File:** `src/routes/admin/leave-requests.ts:222`
+- **Failure scenario:** Both the request-creation loop (lines 90–97) and the approval loop (lines 222–244) count business days with a weekend-only filter (`dow !== 0 && dow !== 6`); the file never imports `isHoliday`. So weekday Czech public holidays inside the range are counted as charged leave days, and approval increments `vacation_used`/`sick_used` by `totalBusinessDays * 8` including them. The sibling `attendance.service.createLeave` (line 1270) correctly skips `isHoliday(...)`, and `getBusinessDaysInMonth` excludes holidays from the work fund — so the deduction is a double charge for a day already paid/free.
+- **Repro:** Employee `POST /api/admin/leave-requests` `{leave_type:"vacation", date_from:"2026-05-01", date_to:"2026-05-09"}` (1.5. and 8.5. are weekday holidays in 2026) → `total_hours=48`. Approver `PUT /.../{id}` `{status:"approved"}` → `vacation_used` grows by 48h instead of 32h; holiday dates are recorded as consumed vacation in `attendance`.
+- **Pinning test:** Approve a vacation request spanning a weekday public holiday; assert `vacation_used` increased only by the non-holiday business hours (fails today: includes the holiday).
+
+---
+
+## MEDIUM
+
+### M1. Invoice date fields accept arbitrary strings and write a day early to `@db.Date` when a datetime value is submitted
+
+- **Severity:** Medium
+- **File:** `src/services/invoices.service.ts:533`
+- **Failure scenario:** `CreateInvoiceSchema`/`UpdateInvoiceSchema` type `issue_date`/`due_date`/`tax_date`/`paid_date` as plain `z.string().max(255).nullish()` (not `isoDateString`). `createInvoice`/`updateInvoice` do `new Date(String(...))` straight into the `@db.Date` columns. A round-tripped API value like `"2025-03-15T00:00:00"` (the `toJSON` override emits local time, no `Z`) parses as local Prague → `2025-03-14 22:00 UTC` → Prisma truncates to `2025-03-14`. The invoice then also lands in the wrong month bucket in `getInvoiceStats`/`buildInvoiceWhere`. Every other `@db.Date`-writing module uses `isoDateString` (which slices the time off); invoices is the lone outlier.
+- **Repro:** `POST /api/admin/invoices` with `issue_date:"2025-03-01T00:00:00"` → DB stores `2025-02-28`; `GET .../stats?month=3&year=2025` excludes it and inflates February.
+- **Pinning test:** Create an invoice with `issue_date="2025-03-01T00:00:00"`; assert the stored date is `2025-03-01` (fails today: `2025-02-28`). Fix: `isoDateString.nullish()`.
+
+### M2. `order_items.unit` Zod cap (255) exceeds DB column `VarChar(20)` → Prisma 500 on long unit strings
+
+- **Severity:** Medium
+- **File:** `src/schemas/orders.schema.ts:15`
+- **Failure scenario:** `unit: z.string().max(255)` vs `order_items.unit @db.VarChar(20)` (`schema.prisma:330`). A 21–255 char unit passes Zod, overflows the column (P2000), and surfaces as 500 (the create catch only re-maps `status`-bearing errors; update has no try/catch). The sibling offers/issued-orders schemas correctly use `.max(20)`.
+- **Repro:** `POST /api/admin/orders` (JSON) `items:[{ description:"Test", quantity:1, unit_price:100, unit:"abcdefghijklmnopqrstuvwxyz" }]` → HTTP 500 instead of 400. (The MUI form enforces `maxLength:20` client-side, so this is an API/non-browser vector.)
+- **Pinning test:** `parseBody(OrderItemSchema, { unit: "x".repeat(21), ... })` should 400 at Zod — fails today. Fix: `.max(20)`.
+
+### ~~M3. Offer PDF page footer ("Strana X z Y") never renders~~ — WITHDRAWN 2026-06-12 (false positive)
+
+- **Status:** **Withdrawn** — user verified the footer DOES render in production.
+- **Why the audit got it wrong:** the finding (and all three verification lenses) trusted the repo's own documentation — the `html-to-pdf.ts:68-74` comment and the CLAUDE.md line "Chromium has no CSS margin-box footers". That fact has been stale since **Chrome 131 (Nov 2024), which implemented CSS `@page` margin boxes**; the project runs Puppeteer 24.40 (bundled Chrome 146 locally) and prod renders with system Chromium 149, both far past 131, so the offer's `@bottom-center { counter(page) }` footer renders fine. No lens rendered an actual PDF — documentation poisoning, not a code bug.
+- **Real follow-up (doc-only, Low):** correct the outdated claim in `html-to-pdf.ts` and CLAUDE.md so future work doesn't repeat this; the `footerTemplate` mechanism and the CSS margin-box mechanism are now BOTH valid, coexisting approaches.
+
+### M4. `customer_order_number` Zod cap (255) exceeds DB column `VarChar(100)` → Prisma 500
+
+- **Severity:** Medium
+- **File:** `src/schemas/orders.schema.ts:54`
+- **Failure scenario:** `customer_order_number: z.string().max(255)` vs `orders.customer_order_number @db.VarChar(100)` (`schema.prisma:356`). A 101–255 char value passes Zod, overflows the column (P2000 under strict mode), and surfaces as 500 instead of 400 (no P2003/P2000 mapping; create catch only handles `status`-bearing errors).
+- **Repro:** `POST /api/admin/orders` (JSON) `{ customer_order_number: "A".repeat(150), currency:"CZK", language:"cs", status:"prijata" }` → HTTP 500; no order created. Same on `PUT /api/admin/orders/:id`.
+- **Pinning test:** `parseBody(CreateOrderSchema, { customer_order_number: "A".repeat(150), ... })` should 400 — fails today. Fix: `.max(100)` on both schemas.
+
+### M5. Foreign-currency invoice PDF returns HTTP 500 (and fails to archive) when the CNB rate lookup throws
+
+- **Severity:** Medium
+- **File:** `src/routes/admin/invoices-pdf.ts:411`
+- **Failure scenario:** For a EUR invoice, `const cnbRate = isForeign ? await getRate(currency, issueDateStr) : 1.0` is unguarded. When CNB is unreachable and no cached entry exists for the issue date, `getRate` throws "Nepodařilo se získat aktuální kurzy z ČNB", which propagates to the route's catch and returns the 500 error page — blocking BOTH preview and NAS archival, even though the rate only feeds the cosmetic CZK-conversion footnote. Sibling consumers (`received-invoices` stats, `ai-tools`) wrap `toCzk` and degrade per-row; the PDF path has no fallback.
+- **Repro:** EUR invoice with a back-dated/never-fetched issue date, CNB unreachable → `GET /api/admin/invoices-pdf/:id` (preview) or `?save=1` (archive) returns 500; the `save=1` archival is silently swallowed client-side, leaving no NAS copy.
+- **Pinning test:** Mock `getRate` to throw, render a foreign-currency invoice PDF; assert a non-error response (PDF rendered with the conversion line omitted) — fails today (500).
+
+### M6. `updateProject` sets FK fields with no existence check → FK violation 500
+
+- **Severity:** Medium
+- **File:** `src/services/projects.service.ts:115`
+- **Failure scenario:** `updateProject` writes `customer_id`/`responsible_user_id`/`quotation_id`/`order_id` straight into `prisma.projects.update` with only int coercion and no `findUnique`. The FKs are `onDelete: Restrict`, so a non-existent id raises P2003 → generic 500. `createProject` validates `customer_id`/`responsible_user_id` and returns clean Czech 400s; the update path is the inconsistent gap.
+- **Repro:** `PUT /api/admin/projects/1` `{ "customer_id": 999999 }` → HTTP 500 "Interní chyba serveru" instead of "Zákazník nenalezen" 400. Same for the other three FK fields.
+- **Pinning test:** `PUT /projects/:id` with a non-existent `customer_id`; assert a 400 with a Czech "nenalezen" message — fails today (500). Fix: mirror `createProject`'s existence checks.
+
+### M7. Date-range filters/reports exclude the whole `date_to` day (`lte` against UTC-midnight) — inclusive end date silently drops same-day records
+
+- **Severity:** Medium
+- **File:** `src/routes/admin/warehouse.ts:1038`
+- **Failure scenario:** Receipts/issues filters and the project-consumption / movement-log reports build `created_at: { lte: new Date(date_to) }`. `new Date("2026-06-12")` parses as UTC midnight = 02:00 Prague; `created_at` is `@db.DateTime(0)` storing local-time instants, so a receipt at 09:00 Prague (07:00Z) is `> 00:00Z` and excluded. The entire requested end day disappears from filtered lists and report totals.
+- **Repro:** Confirm a receipt today at 09:00 Prague. `GET /admin/warehouse/receipts?date_from=2026-06-12&date_to=2026-06-12` returns zero rows. Reports for a period ending 2026-06-12 under-report the last day.
+- **Pinning test:** Create a same-day receipt at 09:00 local, filter `date_to` = that date; assert the receipt is returned — fails today. Fix: half-open `lt utcMidnightOfLocalDay(date_to + 1 day)`.
+
+### M8. POST/PUT receipts & issues 500 on nonexistent or deleted FK ids instead of a clean Czech 400
+
+- **Severity:** Medium
+- **File:** `src/routes/admin/warehouse.ts:1117`
+- **Failure scenario:** The receipts/issues create+update handlers write rows directly with no FK-existence pre-check and no try/catch; schemas only int-coerce ids. A deleted/nonexistent `supplier_id`/`location_id`/`item_id`/`project_id`/`batch_id` raises P2003/P2025 → generic 500. The document modules (offers/orders/issued-orders) and `trips.ts` all pre-validate FK existence precisely to avoid this; warehouse omits the guard.
+- **Repro:** `POST /receipts` `{ items:[{ item_id: 99999999, quantity:1, unit_price:10 }] }` → 500. `POST /issues` `{ project_id: 99999999, items:[{ item_id:<in-stock>, quantity:1 }] }` → 500. `POST /issues` with a valid item + nonexistent explicit `batch_id` → 500.
+- **Pinning test:** `POST /receipts` with a nonexistent `item_id`; assert a 400 ("Položka nenalezena") — fails today (500).
+
+### M9. `updateEntry` never re-checks the per-cell cap, so expanding an entry's range pushes a day past `MAX_RECORDS_PER_CELL` and silently hides existing records
+
+- **Severity:** Medium
+- **File:** `src/services/plan.service.ts:597`
+- **Failure scenario:** `createEntry`/`bulkCreateEntries`/`createOverride` all guard the per-cell cap of 3 via `assertEntryCapAvailable`, but `updateEntry` does not. Expanding an entry's `date_from`/`date_to` onto a day that already holds 3 active entries succeeds, producing 4. `resolveCell`/`resolveGrid` cap display at 3 (newest-first), so the oldest entry silently vanishes from the grid while remaining active in the DB.
+- **Repro:** Create 3 active entries on 2099-07-01 for user 5; create a 4th on 2099-07-02; `PATCH /plan/entries/<4th>` `{ date_from:"2099-07-01", date_to:"2099-07-01" }` → 200; the grid for that day now shows only 3 of the 4 entries.
+- **Pinning test:** Fill a day to the cap, then `PATCH` another entry to overlap that day; assert the update is rejected with the cap error — fails today.
+
+### M10. `POST /users` does not strip `role_id` for non-admins — a `users.create` holder can grant any non-admin role
+
+- **Severity:** Medium
+- **File:** `src/routes/admin/users.ts:63`
+- **Failure scenario:** The POST handler forwards `role_id` straight to `createUser`; `createUser` only rejects the literal `admin` role. The PUT handler explicitly strips `role_id`/`is_active` for non-admin callers ("Privilege-escalation guard"), so create is an inconsistent escalation surface: a `users.create` holder can mint an account on any high-privilege non-admin role (e.g. one bundling `settings.roles` or `users.edit`) the caller itself lacks. Violates the documented "Role-management writes are admin-only and re-checked" rule.
+- **Repro:** As account M with only `users.create`, `POST /api/admin/users` `{ ..., role_id: N }` where N is a non-admin role bundling `settings.roles`/`users.edit` → 201; the new account holds permissions M never had.
+- **Pinning test:** As a non-admin `users.create` caller, POST a user with a privileged `role_id`; assert the created user's role is NOT the privileged one (role stripped, as on PUT) — fails today.
+
+### M11. `route_from`/`route_to` Zod cap (255) exceeds DB column `VarChar(100)` — 500 or silent truncation
+
+- **Severity:** Medium
+- **File:** `src/schemas/trips.schema.ts:17`
+- **Failure scenario:** `route_from`/`route_to` cap at `.max(255)` (create lines 17–18, update 29–30) vs `trips.route_from/route_to @db.VarChar(100)` (`schema.prisma:668-669`). The route writes `String(body.route_from)` directly. A 101–255 char route passes Zod, then either 500s (P2000 strict mode, no global Prisma mapping) or silently truncates to 100 chars (data loss). The frontend TextFields have no `maxLength`, so the UI triggers it too.
+- **Repro:** `POST /api/admin/trips` with a 150-char `route_from` → 500 (or truncated 201). Same on `PUT`.
+- **Pinning test:** `parseBody(CreateTripSchema, { route_from: "x".repeat(101), ... })` should 400 — fails today. Fix: `.max(100)`.
+
+### M12. Shared Puppeteer browser disconnecting mid-render fails concurrent PDF requests (no re-acquire/retry)
+
+- **Severity:** Medium
+- **File:** `src/utils/html-to-pdf.ts:92`
+- **Failure scenario:** `getBrowser()` returns the cached module-level browser after a point-in-time `connected` check; `htmlToPdf` immediately does `b.newPage()` with no re-check. Two concurrent renders capture the same handle; if Chromium crashes (OOM/killed) after the guard, both reject. A's finally nulls the shared handle out from under B. Both return 500 even though an immediate retry would relaunch and succeed — there is no re-acquire/retry wrapper.
+- **Repro:** Fire two simultaneous `GET /api/admin/orders-pdf/5` (always renders, no NAS short-circuit), then `pkill -9 chrome` during the render window → both requests 500; the next request succeeds.
+- **Pinning test:** Stub the cached browser so `connected` is true at guard time and false at `newPage` time; assert `htmlToPdf` re-acquires and resolves (or both concurrent calls succeed on retry) — fails today.
+
+---
+
+## LOW
+
+### L1. Client-supplied TOTP secret up to 255 chars overflows `VarChar(255)` after encryption, yielding a 500 instead of a 400
+
+- **Severity:** Low
+- **File:** `src/schemas/auth.schema.ts:30`
+- **Failure scenario:** `TotpEnableSchema.secret` caps at `.max(255)` on the plaintext, but the stored value is the AES-256-GCM ciphertext (`base64(IV[12] + ciphertext + tag[16])`), which exceeds 255 chars for any plaintext over ~164 chars. `users.totp_secret` is `@db.VarChar(255)`. The pre-write `totp.validate` does not bound secret length, and the attacker controls both `secret` and `code`, so a long secret reaches the write → P2000 → 500 (strict mode) or silent ciphertext truncation that permanently locks the account out.
+- **Repro:** Authenticated, 2FA-not-enabled user: generate a 250-char base32 secret + matching TOTP code, `POST /api/admin/totp/enable` with the correct password → 500 (or corrupted secret).
+- **Pinning test:** Enable TOTP with a 250-char secret; assert a 400 (not 500) — fails today. Fix: `.max(64)` (real secrets are 16–32 chars).
+
+### L2. Offer number sequence is never released on delete when created and finalized in different calendar years
+
+- **Severity:** Low
+- **File:** `src/services/offers.service.ts:522`
+- **Failure scenario:** `generateOfferNumber` keys on `new Date().getFullYear()` (finalize year), assigning e.g. `2026/NA/001`. `deleteOffer` derives the release year from `existing.created_at.getFullYear()` (2025) and calls `releaseOfferNumber(2025, "2026/NA/001")`; `releaseSequence` reconstructs the highest as `2025/NA/<n>`, which never equals `2026/NA/001`, so the `deletedNumber === highestNumber` guard is false and the 2026 counter keeps a permanent gap. `invoices.service.ts` solves the same problem correctly by parsing the year out of the document number.
+- **Repro:** Create a draft `2025-12-30`, finalize it `2026-01-02` → `2026/NA/001`. Delete it → next finalized 2026 offer is `2026/NA/002` (gap; no `2026/NA/001`).
+- **Pinning test:** Create a draft in year Y, finalize+delete it in year Y+1; assert the Y+1 sequence counter was released — fails today. Fix: parse the year from the assigned number.
+
+### L3. `customers` list paginates with non-unique sort columns and no `id` tiebreak → unstable pagination
+
+- **Severity:** Low
+- **File:** `src/routes/admin/customers.ts:54`
+- **Failure scenario:** `orderBy: { [sortField]: order }` over allow-listed fields (`name`/`city`/`country`/`company_id`, all non-unique) with no `{ id }` tiebreak, used with offset pagination. Rows sharing a sort-key value that straddle a page boundary can reorder between the page-1 and page-2 queries, duplicating one and skipping another. Violates the documented determinism rule; siblings (`issued-orders.ts`, `trips.ts`) use compound `[..., { id }]` orderings. (The same defect exists at `received-invoices.ts:144`.)
+- **Repro:** Seed customers with a shared `city` straddling a `limit=2` boundary; page through `?sort=city` and observe a customer appearing on two pages while another is skipped.
+- **Pinning test:** Paginate a sort over duplicate-`city` customers; assert the concatenated pages contain every customer exactly once — fails today. Fix: `orderBy: [{ [sortField]: order }, { id: order }]`.
+
+### L4. Invoice month navigation does not reset the page index → switching to a sparser month shows an empty table
+
+- **Severity:** Low
+- **File:** `src/admin/pages/Invoices.tsx:244`
+- **Failure scenario:** `prevMonth`/`nextMonth` mutate `statsMonth`/`statsYear` but never `setPage(1)` (unlike the status/search handlers). The list query keys on `page` + month, and the server never clamps page to `total_pages`, so paging to page 3 of a busy month then switching to a 1-page month requests `?page=3&month=...` and gets an empty `data` array — empty table for a populated month, with the pager reading "3 of 1".
+- **Repro:** Open a month with 60+ invoices, go to page 3, click the previous-month chevron to a month with a handful → empty "Zatím nejsou žádné faktury" table. API: `GET /api/admin/invoices?page=3&month=<sparse>&year=<y>` returns `data:[]` with non-zero `total`.
+- **Pinning test (component):** With `page=3`, fire `nextMonth`; assert `page` resets to 1 — fails today.
+
+### L5. Issued-orders sub-list keeps its page index when the parent Orders page changes month → empty list for sparser months
+
+- **Severity:** Low
+- **File:** `src/admin/pages/IssuedOrders.tsx:135`
+- **Failure scenario:** `IssuedOrders` receives `month`/`year` as props and holds `page` in local state with no effect/key resetting it on prop change (the child is not keyed by month/year, so it doesn't remount). Paging to page 2 of a busy month then moving the parent to a sparse month requests page 2 of the new month → empty `data` → "Zatím žádné vydané objednávky." for a month that has orders on page 1.
+- **Repro:** Objednávky → Vydané: navigate to a month with ≥26 issued orders, click page 2, then use the parent month chevron to a month with 1–25 orders → empty sub-list. API equivalent: `GET /api/admin/issued-orders?page=2&month=<1..25 orders>&year=<y>` → `data:[]` with non-zero `total`.
+- **Pinning test (component):** With `page=2`, change the `month` prop; assert `page` resets to 1 (or is clamped to `total_pages`) — fails today.
+
+### L6. Settings "System" tab save clobbers freshly-saved "Firma" numbering patterns with stale values
+
+- **Severity:** Low
+- **File:** `src/admin/pages/Settings.tsx:297`
+- **Failure scenario:** Both tabs edit the same singleton `company_settings` row via `PUT /company-settings`. `sysForm` carries `offer_number_pattern`/`order_number_pattern`/`invoice_number_pattern` (populated once, gated by a never-reset `sysFormInitialized` flag). After editing numbering in the Firma tab (which invalidates `["company-settings"]`), `sysForm` stays stale; saving the System tab sends the whole stale form, and the backend applies every `!== undefined` field, silently reverting the Firma-tab change.
+- **Repro:** Init the System tab; in the Firma tab change `offer_number_pattern` and save; return to System and save any unrelated field → `offer_number_pattern` reverts to its pre-edit value, with a success toast.
+- **Pinning test:** PUT the offer pattern, then PUT a stale sysForm carrying the old pattern; assert the offer pattern is NOT reverted (or that System-tab saves omit the numbering fields) — fails today.
+
+### L7. `start_km`/`end_km` accept decimals but DB columns are `Int` — non-integer odometer reading errors or truncates
+
+- **Severity:** Low
+- **File:** `src/schemas/trips.schema.ts:15`
+- **Failure scenario:** `start_km`/`end_km` use `nonNegativeNumberFromForm` (only `Number.isFinite && >=0`, no integer refine), but the columns are `Int`. A decimal passes Zod, reaches the `Int` column → Prisma validation 500 or MySQL truncation (corrupting the reading and derived distance, propagated into `vehicles.actual_km`). Same mismatch for `vehicles.initial_km`/`actual_km`. The UI's `parseInt` is used only for the distance widget, not the submitted payload, so the browser is vulnerable too.
+- **Repro:** `POST /api/admin/trips` `{ vehicle_id, trip_date:"2098-01-15", start_km:100.5, end_km:1200.7, route_from:"A", route_to:"B" }` → 500 (or truncated values).
+- **Pinning test:** `parseBody(CreateTripSchema, { start_km: 100.5, ... })` should 400 — fails today. Fix: `nonNegativeIntFromForm` for the four km fields.
+
+### L8. AI monthly budget control: severity-mismatched permission, date asymmetry, dead UI button, currency overflow, audit-log boundary (grouped low-severity cluster)
+
+These five independently-confirmed low-severity findings share the "minor blast radius / narrow trigger" profile. Each is real and pinnable.
+
+- **L8a. Company-wide AI monthly budget is mutable by any `ai.use` holder (not admin/settings).** `src/routes/admin/ai.ts:58`. `PUT /api/admin/ai/budget` is gated only by `requirePermission("ai.use")`, an ordinary grantable permission. Setting `budget_usd=0` makes `assertBudgetAvailable` return 402 for everyone (admins included) → company-wide AI DoS; setting `1000000` removes the cost cap. The parallel `company-settings` writes are gated behind `settings.company`/`settings.system`.
+  - **Repro:** As any `ai.use` holder, `PUT /api/admin/ai/budget {"budget_usd":0}` → all `ai/chat` and `extract-invoices` calls 402.
+  - **Pinning test:** Call `PUT /ai/budget` as a non-admin `ai.use`-only user; assert 403 — fails today. Fix: gate behind `settings.company`/admin.
+
+- **L8b. Audit-log `date_from` filter boundary shifted ~2h vs `date_to` (UTC vs local parsing).** `src/routes/admin/audit-log.ts:46`. `from = new Date(date_from)` parses as UTC midnight (02:00 Prague), while `to = new Date(date_to + "T23:59:59")` parses as local — so events between 00:00 and 02:00 Prague on the from-date are silently excluded.
+  - **Repro:** `GET /api/admin/audit-log?date_from=2026-06-12&date_to=2026-06-12` omits a row logged at 01:30 Prague that day.
+  - **Pinning test:** Insert an audit row at 01:30 local, filter for that day; assert it's returned — fails today.
+
+- **L8c. Draft invoice shows a non-functional "Zobrazit fakturu" PDF button that always errors.** `src/admin/pages/InvoiceDetail.tsx:1805`. The button render guard lacks the `status !== "draft"` check that `OfferDetail`/`IssuedOrderDetail` have; clicking it on a draft opens a blank tab, 404s `/file`, closes the tab, and toasts an error.
+  - **Repro:** Open a draft invoice, click "Zobrazit fakturu" → blank tab flash + "PDF soubor nenalezen" toast.
+  - **Pinning test:** Render `InvoiceDetail` for a draft; assert the PDF button is not rendered — fails today. Fix: add `&& invoice.invoice_number` (or non-draft) to the guard.
+
+- **L8d. Odin "Měna" / received-invoice currency over 3 chars 500s the save (`VarChar(3)` vs schema `max(20)`).** `src/components/odin/InvoiceReviewCard.tsx:67` / `src/schemas/received-invoices.schema.ts:11`. A free-text currency like "Koruna" passes Zod (`max(20)`) but overflows `received_invoices.currency @db.VarChar(3)` (P2000 → 500), AND because the NAS write precedes the DB create, the uploaded file is orphaned. The same module's `description` (`max(8000)` vs `VarChar(500)`) and `invoice_number` (`max(255)` vs `VarChar(100)`) are also misaligned.
+  - **Repro:** Save an Odin invoice with `currency:"Koruna"` → 500 + orphaned NAS file. Equivalent: `POST /received-invoices` multipart with `currency:"Koruna"`.
+  - **Pinning test:** `parseBody(CreateReceivedInvoiceSchema, { currency:"Koruna", ... })` should 400 — fails today. Fix: `currency .max(3)`, `description .max(500)`, `invoice_number .max(100)`.
+
+- **L8e. Warehouse supplier `ico`/`dic` Zod caps (255) exceed `VarChar(20)` columns.** `src/schemas/warehouse.schema.ts:34`. A >20-char `ico`/`dic` (bad paste) passes Zod and 500s at Prisma. Low realism (real IČO=8 digits) but a genuine 500-vs-400 defect; the customers schema (`company_id`/`vat_id`) shares it.
+  - **Repro:** `POST /api/admin/warehouse/suppliers` `{ name:"Test", ico:"123456789012345678901" }` → 500.
+  - **Pinning test:** `parseBody(CreateSupplierSchema, { ico:"x".repeat(21), ... })` should 400 — fails today. Fix: `.max(20)`.
+
+> **Adjacent uncited Zod-cap mismatches confirmed during verification** (same bug class, fix alongside the above so the gap is closed once): invoice line-item `description` (`max(8000)` vs `VarChar(500)`) and `unit` (`max(255)` vs `VarChar(20)`) — `src/schemas/invoices.schema.ts:13,16`, **High** blast radius (whole invoice save rolls back); invoice bank/payment fields `payment_method`/`constant_symbol`/`bank_swift`/`bank_iban`/`bank_account` (caps 255 vs `VarChar(50)/VarChar(20)`) — `src/schemas/invoices.schema.ts:30-35`, **Medium**; warehouse `/items` list ignores the client `sort` param and sorts by non-unique `name` with no `id` tiebreak — `src/routes/admin/warehouse.ts:662`, **Low**; year-spanning leave request books all hours against the start year's balance only — `src/routes/admin/leave-requests.ts:195`, **Medium**; Dashboard "Přidat jízdu" quick action omits `["vehicles"]` invalidation — `src/admin/components/dashboard/DashQuickActions.tsx:184`, **Low**. These were verified `real` but fall outside the 29-item cited set; treat them as a fast-follow batch.
+
+---
+
+## Recommended Fix Order (dependencies considered)
+
+**Phase 0 — Data-integrity criticals first (financial/stock corruption, silent & cumulative).** These corrupt persisted state and worsen on retry; fix before anything cosmetic.
+
+1. **C3** `confirmInventorySession` `return`→`throw` (one-line change; stops repeatable phantom inventory). Trivial, highest leverage.
+2. **C2** `confirmIssue` cross-line over-issue guard (add a running per-batch tally / up-front availability pass, mirroring the existing `confirmIssue` validation-first pattern; consider a `(issue_id, batch_id)` unique constraint as a backstop).
+3. **C1** leave-balance restore on attendance delete — but **do C1 together with H6 and the year-spanning leave finding**, since all three live in the leave/attendance balance code and a single corrected helper (per-day, holiday-aware, per-year accumulation, with an inverse on delete) resolves them coherently. Fix the holiday-counting (H6) and per-year split first, then route delete through the same helper.
+
+**Phase 1 — Security / privilege & session correctness.** 4. **H1** session-reuse misclassification (gate the reuse branch on `replaced_by_hash` alone; reorder vs the expiry check). Self-contained; high user impact. 5. **M10** `POST /users` role-strip for non-admins; **L8a** AI budget permission gate. Both are permission-boundary one-liners.
+
+**Phase 2 — The Zod-cap-vs-DB-column batch (single coordinated sweep).** All of **H2, M2, M4, M11, L1, L8d, L8e** plus the adjacent invoice item/bank caps share one mechanism and one fix shape (`.max()` alignment + optionally a global P2000→400 mapping in `server.ts`). Do them in one pass with a shared "cap-must-fit-column" test helper so the class is closed, not whacked one at a time. Highest blast radius within the batch (whole-save rollback): invoice item caps, then H2.
+
+> **Phase 2 follow-ups (2026-06-12, deliberately deferred):** (1) the optional
+> global P2000→400 mapping in the `server.ts` error handler was NOT added —
+> `server.ts` exports no app builder, so the mapping would be untestable
+> without first extracting an exported `buildApp()`; do the refactor + backstop
+> together. (2) Frontend `maxLength` attributes on the trips (odkud/kam) and
+> invoice bank/payment form fields — pure UX polish now that Zod 400s
+> over-length input with a Czech message; add when next touching those forms.
+
+**Phase 3 — FK-existence & error-mapping consistency.** **M6** (projects update), **M8** (warehouse receipts/issues), **M5** (CNB graceful degradation). These align the lagging modules with the established offers/orders pre-validation pattern; a shared P2003→Czech-400 mapping (added in Phase 2 if you choose the global-handler route) reduces the per-site work.
+
+**Phase 4 — Date/timezone boundaries.** **M1** (invoice date `isoDateString`), **M7** (warehouse `date_to` half-open), **H5** (Odin Czech-date), **L8b** (audit-log `from`). Group because they share the documented date-boundary helpers (`isoDateString`, `utcMidnightOfLocalDay`); fixing M1/H5 also removes a day-shift class.
+
+**Phase 5 — Pagination determinism & frontend state.** **H4** (received-invoices pager — add the missing `usePaginatedQuery`/`<Pagination>`), **L3** (customers + received-invoices `id` tiebreak), **L4/L5** (page-reset on month change), **M9** (plan update cap), **H3** (issued-order transition flush edits + don't `markClean` stale state). H4 is the largest UI change; the rest are small, independent guards.
+
+**Phase 6 — Cosmetic / low-blast cleanup (parallelizable, no dependencies).** ~~M3~~ (withdrawn; only the stale Chromium-footer comment in `html-to-pdf.ts`/CLAUDE.md remains as a doc fix), **M12** (Puppeteer re-acquire/retry), **L2** (offer number release year), **L6** (Settings System/Firma clobber), **L7** (km integer coercion), **L8c** (draft PDF button guard), warehouse `/items` sort param + tiebreak, and the Dashboard `["vehicles"]` invalidation.
+
+Rationale for ordering: persisted-data corruption (Phase 0) cannot be allowed to accumulate; security boundaries (Phase 1) are cheap and high-impact; the cap batch (Phase 2) and FK/error mapping (Phase 3) are most efficient done as coordinated sweeps that share a fix shape and tests; date boundaries (Phase 4) share helpers; UI/pagination (Phase 5) depend on nothing earlier but benefit from the cleaner backend; everything in Phase 6 is independent and can be parallelized across contributors.

CLAUDE.md

@@ -1,24 +1,26 @@
 # CLAUDE.md — boha-app-ts
 
 Business management system for a Czech company, rewritten from PHP to TypeScript/Node.js.
-Handles attendance, invoicing, leave/trips, projects, vehicles, and HR operations.
+Handles attendance, invoicing, offers/orders, leave/trips, projects, warehouse, vehicles, and HR operations.
 
 ---
 
 ## Tech Stack
 
-| Layer          | Technology                                                    |
+| Layer          | Technology                                                                                            |
-| -------------- | ------------------------------------------------------------- |
+| -------------- | ----------------------------------------------------------------------------------------------------- |
-| Runtime        | Node.js, TypeScript 5.9.3 (strict)                            |
+| Runtime        | Node.js, TypeScript (strict, all tsconfigs)                                                           |
-| HTTP Framework | Fastify 5.8.2                                                 |
+| HTTP Framework | Fastify 5                                                                                             |
-| ORM            | Prisma 6.19.2 → MySQL                                         |
+| ORM            | Prisma 7 (Rust-free client + @prisma/adapter-mariadb; datasource lives in `prisma.config.ts`) → MySQL |
-| Auth           | JWT (HS256, 15 min) + TOTP 2FA (RFC 6238, otpauth) + bcryptjs |
+| Auth           | JWT (HS256, 15 min) + TOTP 2FA (RFC 6238, otpauth) + bcryptjs                                         |
-| Validation     | Zod 4.3.6                                                     |
+| Validation     | Zod 4                                                                                                 |
-| Frontend       | React 18.3.1 + Vite 8.0.0 + Material UI v7 (Emotion)          |
+| Frontend       | React 19 + Vite + Material UI v7 (Emotion) + React Query                                              |
-| Testing        | Vitest 4.1.0 + Supertest                                      |
+| Testing        | Vitest + Supertest against a real `app_test` DB                                                       |
-| PDF            | Puppeteer 24.x                                                |
+| PDF            | Puppeteer (stay on 24.x — v25 is ESM-only, conflicts with the CJS server build)                       |
-| Email          | nodemailer 8.x                                                |
+| Email / Cron   | nodemailer / node-cron                                                                                |
-| Cron           | node-cron 4.x                                                 |
+| AI             | @anthropic-ai/sdk → claude-sonnet-4-6 ("Odin" assistant)                                              |
+
+(Exact versions live in `package.json` — don't trust any pinned here.)
 
 ---
 
@@ -26,34 +28,28 @@ Handles attendance, invoicing, leave/trips, projects, vehicles, and HR operation
 
 ```
 src/
-├── server.ts           # Fastify server entry point — plugins, routes, error handler
+├── server.ts           # Fastify entry — plugins, routes, error handler
 ├── routes/admin/       # HTTP route handlers (one file per entity)
-├── services/           # Business logic (no classes, exported functions, uses Prisma directly)
+├── services/           # Business logic (no classes, exported functions, own Prisma)
-├── schemas/            # Zod validation schemas (one file per entity)
+├── schemas/            # Zod validation schemas (one file per entity; shared coercers in common.ts)
-├── middleware/         # auth.ts (requireAuth, requirePermission, optionalAuth)
+├── middleware/         # auth.ts (requireAuth/requirePermission), security.ts (CSP, HSTS)
-│                       # security.ts (CSP, HSTS, security headers)
+├── utils/              # totp, email, audit, date, pdf-shared, content-disposition, html-to-pdf, …
-├── utils/              # totp.ts, pdf.ts, email.ts, audit.ts, formatters, etc.
+├── config/             # env.ts (config singleton, TZ + Date.toJSON override)
-├── config/             # env.ts (config singleton, Date.toJSON override)
+├── types/              # AuthData, JwtPayload, ApiResponse, Prisma re-exports
-├── types/              # index.ts (AuthData, JwtPayload, ApiResponse, re-exports from Prisma)
+├── admin/              # React 19 + MUI v7 frontend
-├── admin/              # React 18 + Material UI frontend (~105 .tsx files)
 │   ├── AdminApp.tsx    # Router + lazy-loaded pages
-│   ├── theme.ts        # MUI theme — light/dark color schemes, tokens, component defaults
+│   ├── theme.ts / GlobalStyles.tsx
-│   ├── GlobalStyles.tsx  # App-wide global styles via MUI <GlobalStyles> (reset, typography, utilities)
+│   ├── ui/             # MUI component kit — pages import from here
-│   ├── ui/             # MUI component kit (AppShell, Button, DataTable, Modal, …) — pages import from here
+│   ├── components/     # Non-page components incl. document/ (shared doc editors), odin/, warehouse/
-│   ├── context/        # AuthContext, AlertContext  (ThemeContext lives in src/context/)
+│   ├── context/        # AuthContext, AlertContext (ThemeContext lives in src/context/)
-│   ├── components/     # Non-page components: RichEditor (Quill), PlanGrid, file manager, dashboard/ + warehouse/ widgets
 │   ├── pages/          # One file per page/feature
-│   ├── lib/            # React Query options & mutations (queries/) + shared label maps
+│   ├── lib/queries/    # React Query options + useApiMutation
-│   ├── hooks/          # usePaginatedQuery, useTableSort, useDebounce, useReducedMotion, …
+│   ├── hooks/          # usePaginatedQuery, useDocumentLock, useUnsavedChangesGuard, useDocumentPdf, …
-│   └── utils/          # api.ts (fetch wrapper with token refresh), formatters, helpers
+│   └── utils/          # api.ts (apiFetch with token refresh), formatters
-└── __tests__/          # Vitest tests (~14 files: auth, numbering, warehouse, plan, invoices, …)
+└── __tests__/          # Vitest suites (server-side only; real app_test DB)
 
-prisma/
+prisma/                 # schema.prisma (snake_case columns) + migrations/
-├── schema.prisma       # 49 models, MySQL, snake_case columns
+dist/ dist-client/      # Compiled server (CommonJS) / built frontend (Vite)
-└── migrations/         # Applied migrations
-
-dist/                   # Compiled server (CommonJS, ES2022)
-dist-client/            # Built frontend (Vite, ES2020)
 ```
 
 ---
@@ -61,448 +57,380 @@ dist-client/            # Built frontend (Vite, ES2020)
 ## Commands
 
 ```bash
-# Development
+npm run dev:server      # tsx watch src/server.ts  (frontend: npm run dev:client)
-npm run dev             # Starts server in watch mode (manage frontend separately)
+npm run build           # server + client
-npm run dev:server      # tsx watch src/server.ts
+npm test                # vitest run — against app_test via .env.test
-npm run dev:client      # Vite dev server
+npm run typecheck       # tsc -b --noEmit (NOT -p tsconfig.json — that solution file checks nothing)
-
+npm run lint            # eslint . — react-hooks/rules-of-hooks is an ERROR; keep 0 errors
-# Build
+npm run format          # prettier --write .
-npm run build           # Build server + client
+npx prisma generate     # after every schema change (client is not committed)
-npm run build:server    # tsc -p tsconfig.server.json → dist/
+npx prisma studio       # DB browser
-npm run build:client    # vite build → dist-client/
-
-# Run (production)
-npm start               # node dist/server.js
-
-# Tests
-npm test                # vitest run (single pass)
-npm run test:watch      # vitest watch
-
-# Database
-npx prisma migrate dev                              # Create migration from schema changes + apply to dev
-npx prisma migrate dev --name <descriptive_name>    # Named migration
-npx prisma migrate deploy                           # Apply pending migrations to production
-npx prisma generate                                 # Regenerate Prisma client after schema changes
-npx prisma studio                                   # DB browser GUI
-npx prisma db seed                                  # (Re)seed the dev database
-npx prisma migrate diff --from-url <url> --to-schema-datamodel prisma/schema.prisma --script  # Preview SQL before prod deploy
-npx prisma migrate resolve --applied <migration>    # Mark migration as applied without running SQL
 ```
 
 **Do not start the dev server.** The user manages it separately.
 
-**Before running `prisma migrate dev` or `prisma db push`, ask the user to stop their dev server and wait for confirmation.** Migrations can conflict with an active database connection from the running server.
+**Before any migration, ask the user to stop their dev server and wait for
+confirmation** (the running server holds DB connections).
 
 ---
 
 ## Environment Variables
 
-Required:
+Required: `DATABASE_URL`, `JWT_SECRET`, `TOTP_ENCRYPTION_KEY` (64-char hex).
 
-```
+Optional (defaults in `src/config/env.ts`): `PORT` (prod 3001; dev default 3050
-DATABASE_URL=mysql://user:pass@host:3306/dbname
+hardcoded), `HOST`, `APP_ENV=local|production` (controls CSP/CORS/HSTS),
-JWT_SECRET=<64-char hex string>
+`ACCESS_TOKEN_EXPIRY`, `REFRESH_TOKEN_SESSION_EXPIRY`,
-TOTP_ENCRYPTION_KEY=<64-char hex string>
+`REFRESH_TOKEN_REMEMBER_EXPIRY`, `NAS_PATH` (project files),
-```
+`NAS_INVOICES` + `NAS_ORDERS` (document PDF archives — split trees),
+`MAX_UPLOAD_SIZE`, `CONTACT_EMAIL_TO/FROM`, `SMTP_FROM`, `LEAVE_NOTIFY_EMAIL`,
+`APP_URL`, `CORS_ORIGINS`, `ANTHROPIC_API_KEY` (Odin self-hides without it).
 
-Optional (with defaults):
+`.env` for dev, `.env.test` for tests (both gitignored — **never edit env
-
+files; the user manages them**).
-```
-PORT=3001                          # Production port (dev default: 3050, hardcoded in server.ts)
-HOST=127.0.0.1
-APP_ENV=local|production           # Default: local. Controls CSP, CORS, HSTS
-ACCESS_TOKEN_EXPIRY=900            # 15 minutes
-REFRESH_TOKEN_SESSION_EXPIRY=3600  # 1 hour
-REFRESH_TOKEN_REMEMBER_EXPIRY=2592000  # 30 days
-NAS_PATH=Z:/02_PROJEKTY            # Network share for project files
-MAX_UPLOAD_SIZE=52428800           # 50MB
-CONTACT_EMAIL_TO=
-CONTACT_EMAIL_FROM=
-SMTP_FROM=
-LEAVE_NOTIFY_EMAIL=
-APP_URL=                           # Used in email links
-CORS_ORIGINS=                      # Comma-separated, production only
-```
-
-Use `.env` for dev, `.env.test` for tests.
 
 ---
 
 ## Architecture & Key Patterns
 
-### Request Flow
+### Request flow
 
 ```
 Request → CORS → Cookie → Rate-limit → Security headers
-       → requirePermission() or requireAuth()
+       → requirePermission() / requireAnyPermission()
-       → Zod schema validation (parseBody helper)
+       → parseBody(Schema) / parseId(param)
-       → Route handler
+       → Route handler → Service function → Prisma
-       → Service function
+       → success(reply, data) | error(reply, czechMessage, status)
-       → Prisma
-       → success(reply, data) or error(reply, message, status)
 ```
 
-### Response Format
+### Response format
 
-All responses use this shape:
+`{ success: true, data, message?, pagination? }` on success,
+`{ success: false, error }` on failure. Always the `success()`/`error()`/
+paginated helpers — never raw `reply.send()`.
 
-```typescript
+### Services
-// Success
-{ success: true, data: T, message?: string, pagination?: {...} }
 
-// Error
+Plain exported async functions; services own Prisma, routes stay thin.
-{ success: false, error: string }
+Preferred error shape: return **token literals** (`"not_found"`,
-```
+`"invalid_transition"`, `"supplier_not_found"`, …) and let the ROUTE map
-
+tokens to Czech messages + HTTP codes (the offers/issued-orders modules are
-Use the `success()` and `error()` helpers in routes — never write raw `reply.send()`.
+the reference). Legacy services return `{ error: czech, status }` — fine to
-
+keep until touched; never the discriminated-union style. Respect soft-delete
-### Service Pattern
+(`is_deleted: false`) in reads where the model has it.
-
-Services are plain exported async functions, no classes:
-
-```typescript
-// src/services/foo.service.ts
-export async function getFoo(id: number) {
-  const result = await prisma.foo.findUnique({ where: { id } });
-  if (!result) return { error: "Not found", status: 404 };
-  return { data: result };
-}
-
-// src/routes/admin/foo.ts
-const result = await getFoo(id);
-if ("error" in result) return error(reply, result.error, result.status ?? 400);
-return success(reply, result.data);
-```
-
-### Error Handling
-
-- Routes map service errors to HTTP responses using the pattern above.
-- Global error handler in `server.ts` catches all unhandled exceptions; returns 500 with Czech message.
-- **Never silently swallow errors.** Even if a failure is non-fatal, log it: `app.log.error(e, 'context')`.
-- Error messages are in Czech (this is intentional — user-facing messages, Czech company).
 
 ### Permissions
 
-```typescript
+`requirePermission("entity.action")` / `requireAnyPermission(…)`. The admin
-// Route-level guard
+role bypasses checks (shortcut: `authData.roleName === "admin"` —
-fastify.addHook("preHandler", requirePermission("invoices.view"));
+⚠️ `AuthData` has **`roleName`**, not `role`; don't type `authData` as `any`).
-// or multiple
+GET list/detail endpoints need a permission guard too, NOT bare `requireAuth`
-fastify.addHook(
+(bare-auth reads leak data to any logged-in user). Frontend rule: a _view_
-  "preHandler",
+permission opens pages read-only; an _edit_ permission unlocks fields and
-  requirePermission("invoices.view", "invoices.edit"),
+save buttons.
-);
 
-// Admin role bypasses all permission checks
+### Audit
-// Permissions follow the pattern: "entity.action" (e.g., "users.create", "invoices.delete")
-```
 
-### Audit Logging
+`logAudit()` on every create/update/delete (and security-relevant actions)
-
+with `oldValues`/`newValues`. Use a `"(koncept)"`-style fallback in
-Call `logAudit()` from `src/utils/audit.ts` whenever data is created/updated/deleted.
+descriptions for unnumbered drafts. Audit failures are non-fatal.
-Pass `oldData` and `newData` so the diff is stored. Audit failures are non-fatal.
-
-### Validation
-
-Use Zod schemas from `src/schemas/`. All route bodies must be validated:
-
-```typescript
-const body = parseBody(FooSchema, request.body);
-if ("error" in body) return error(reply, body.error, 400);
-```
 
 ---
 
-## Date & Timezone Handling (Critical Gotcha)
+## Dates & Timezones (Critical — three rules)
 
-`src/config/env.ts` sets `process.env.TZ = 'Europe/Prague'` and overrides
+1. **Global override:** `src/config/env.ts` sets `TZ=Europe/Prague` and
-`Date.prototype.toJSON()` to return local time (not UTC). This means:
+   monkey-patches `Date.prototype.toJSON()` to emit LOCAL time (PHP-migration
+   parity). All API date strings are local. Never assume UTC; never manually
+   offset. Do not remove the override.
+2. **`@db.Date` columns — Prisma truncates filter Dates to the UTC date
+   part.** A local-midnight boundary (`new Date(y, m, d)` = 22:00/23:00 UTC of
+   the _previous_ day) silently shifts the queried window a day back — this was
+   a 14-site production bug class. Build `@db.Date` filter boundaries and
+   "today" writes as UTC-midnight instants of the LOCAL calendar day:
+   `new Date(Date.UTC(y, m, d))` or `utcMidnightOfLocalDay()` from
+   `src/utils/date.ts`; use half-open `gte`/`lt` ranges; never write a bare
+   `new Date()` into a `@db.Date` column (stores yesterday between 00:00–02:00
+   Prague).
+3. **Two deliberate write regimes — don't "fix" either:** the plan module
+   does date-only math in UTC; attendance/leave writes `@db.Date` at **local
+   noon** (`new Date(y, m, d, 12, 0, 0)`). Frontend "today" comes from
+   `localDateStr` (server) / `normalizeDateStr`/`todayLocalStr` (client) —
+   **never** `new Date().toISOString().split("T")[0]` (UTC date, a day early
+   in the Prague evening).
 
-- `JSON.stringify(new Date())` returns local Czech time, not UTC.
+---
-- All API responses with Date fields will contain local time strings.
+
-- Prisma stores dates as UTC internally, but they read back as local due to the TZ setting.
+## Document Modules (offers · orders · issued orders · invoices)
-- **Never assume UTC** when working with Date objects in this codebase.
+
-- When writing new date comparisons or DB queries, use `new Date()` (already local) — do not manually offset.
+**Business rules (user/accountant decisions — do not revert):**
-- The override exists for PHP migration compatibility and Czech date display.
+
+- **VAT exists ONLY on invoices and received invoices.** Offers, order
+  confirmations and issued orders are NOT tax documents: net prices only, one
+  total labeled "Celkem bez DPH" / "Total excl. VAT", no VAT columns, no
+  explanatory VAT notice. Their VAT DB columns were dropped. Invoices created
+  from an order prefill the company default VAT rate.
+- **Issued orders (objednávky vydané) take suppliers** (`sklad_suppliers`,
+  picker lookup at `GET /issued-orders/suppliers` under orders._ perms);
+  offers take customers. Issued orders share the `orders._` permission family
+  (deliberate).
+- **PDF families:** the offer PDF keeps its own monochrome customer-facing
+  design; invoices + issued orders share the red-accent (#de3a3a) family.
+- **Free-form PO content lives in the rich-text sections** ("Obsah" on issued
+  orders, "Rozsah projektu" on offers — CZ/EN titles, Quill content). Issued
+  orders deliberately have NO scope-template picker, NO item templates, NO
+  duplicate action.
+
+**Platform conventions:**
+
+- **Deferred numbering:** drafts carry a NULL document number
+  (nullable-unique column); the sequence number is consumed in-transaction on
+  finalize (draft→active / draft→sent) via `numbering.service.ts`, and
+  released-if-highest on delete. Never hardcode numbering; previews use the
+  collision-advancing helpers.
+- **Status machines:** `VALID_TRANSITIONS` maps in the services; detail
+  responses return `valid_transitions` and the UI renders transition buttons
+  from it. Field edits outside the editable states (offers: draft/active;
+  issued: draft/sent) are rejected with an explicit Czech 400 — status-only
+  payloads still pass.
+- **Edit locking:** lock/heartbeat/unlock route trio on both offers and
+  issued orders (30 s server TTL = 3 missed 10 s client heartbeats); detail
+  enriches `locked_by {user_id, username, full_name}` only when fresh and
+  held by another user; client side is the shared `useDocumentLock` hook +
+  `LockBanner`.
+- **PDF serving:** `GET …/:id/file` serves the archived NAS copy and falls
+  back to a live render (re-archiving it) on a miss; drafts 404 (no number),
+  so the UI hides PDF buttons on drafts. Numbered-document archives write to
+  a deterministic path and **overwrite in place** — never uniquePath `_N`
+  suffixes. The issued-order PDF gets language from the document's `language`
+  column and carries a Puppeteer `footerTemplate` footer on every page
+  ("Vystavil" left, "Strana X z Y"/"Page X of Y" centered). Two repeating-
+  footer mechanisms coexist and BOTH work: Puppeteer `footerTemplate`
+  (invoices + issued orders — `htmlToPdf(html, { footerTemplate })`) and CSS
+  `@page` margin boxes (`@bottom-center` + `counter(page)`, offer PDF —
+  supported since Chrome 131, Nov 2024). Don't migrate one to the other.
+- **Shared modules — extend, never fork local copies:**
+  `src/admin/components/document/` (DocumentItemsEditor, SectionsEditor,
+  LockBanner), hooks `useDocumentLock` / `useUnsavedChangesGuard` /
+  `useDocumentPdf` (+ list variant), `src/admin/lib/documentStatus.ts`,
+  CustomerPicker/SupplierPicker, `src/utils/pdf-shared.ts` (escapeHtml,
+  strict cleanQuillHtml, formatNum NBSP, formatCurrency, formatDate),
+  `src/utils/content-disposition.ts` (RFC 5987 — raw filenames with
+  diacritics in headers make Node throw 500s).
 
 ---
 
 ## TOTP / 2FA
 
-- Secret stored AES-256-GCM encrypted in `users.totp_secret`.
+Secret AES-256-GCM encrypted in `users.totp_secret` (PHP-legacy base64 and TS
-- Supports two encoding formats: PHP legacy (base64 iv+cipher+tag) and TS (hex).
+hex formats both supported); encrypted backup codes with their own
-- Backup codes stored as encrypted JSON array in `users.totp_backup_codes`.
+`/totp/backup-verify` login endpoint. `company_settings.require_2fa` forces
-- When `company_settings.require_2fa = true`, all users must enroll before accessing the app.
+enrollment. Login flow: password → (if enrolled) single-use 5-min
-- Login flow: password → if 2FA enabled → issue `loginToken` (5 min, single-use) → TOTP verify → issue access + refresh tokens.
+`loginToken` → TOTP/backup verify → access + refresh tokens. The enrollment
+QR is generated locally with the `qrcode` package (never an external QR URL —
+CSP blocks it and it would leak the secret).
 
 ---
 
 ## Testing
 
-Tests live in `src/__tests__/`. They use Vitest + Supertest against a real test database (`.env.test`).
+- The suite MUTATES a real MySQL DB → it runs against **`app_test`** (never
-
+  dev `app`), configured in `.env.test`; `src/__tests__/setup.ts` hard-throws
-- The suite spans ~14 files / 152 tests — auth, numbering, warehouse, plan, invoices, exchange-rates, schema coercion, NAS file manager, env, manual-create. Server-side only (no component tests yet).
+  unless `DATABASE_URL` names a `*test*` database.
-- Use `buildApp()` helper to spin up the Fastify instance for tests.
+- **After any schema change, apply migrations to the test DB too** or the
-- Tests use `vitest.config.ts` with `environment: 'node'` and 15s timeout.
+  suite fails: set `DATABASE_URL` to the app_test URL and run
-- **Do not mock Prisma** — tests hit a real database to catch schema/query bugs.
+  `npx prisma migrate deploy`.
-
+- To (re)create it: `CREATE DATABASE app_test;` → copy `.env` to `.env.test`
-When adding new features, add tests in `src/__tests__/`. Name test files `<feature>.test.ts`.
+  with the DB name swapped + `ANTHROPIC_API_KEY=` blanked → migrate deploy →
+  `npx tsx prisma/seed.ts`.
+- **Do not mock Prisma** — real DB catches schema/query bugs. Mock only true
+  externals (Puppeteer via `vi.mock("../utils/html-to-pdf")`, NAS reads via
+  `vi.spyOn`). Files run serialized (`fileParallelism: false`) to avoid
+  sequence deadlocks. Tests are type-checked by `tsc -b`.
+- Fixture hygiene: far-future dates (year 2098) or unique prefixes + full
+  cleanup; FK-safe deletion order. New features get tests in
+  `src/__tests__/<feature>.test.ts`.
 
 ---
 
 ## Frontend Conventions
 
-- Pages are lazy-loaded via `React.lazy()` in `AdminApp.tsx`.
+- Pages lazy-load via `React.lazy()` in `AdminApp.tsx`; auth via `useAuth()`,
-- Auth state lives in `AuthContext`; use `useAuth()` hook to access it.
+  toasts via `useAlert()`.
-- Alerts/toasts use `AlertContext`; use `useAlert()` to show them.
+- **React Query for all fetching** (query options live in
-- Data fetching uses **React Query** (query options + mutations in `src/admin/lib/queries/`); `src/admin/utils/api.ts` (`apiFetch`) handles token refresh automatically — dedupes concurrent refreshes, and token responses carry `expires_in` so the client refreshes BEFORE expiry (no reactive 401 churn).
+  `src/admin/lib/queries/`; no fetch-in-useEffect; prefer deriving state over
-- Custom hooks: `usePaginatedQuery`, `useTableSort`, `useDebounce`, `useModalLock`, `useReducedMotion`.
+  effects). Mutations via `useApiMutation` (opt-in `envelope` mode passes the
-- Styling: **Material UI v7** (Emotion) — theme in `src/admin/theme.ts`, `sx`/`styled()` in components, app-wide rules in `GlobalStyles.tsx`. **No hand-written `.css` files, no Tailwind.** Use `theme.vars` for colours so light/dark resolve automatically.
+  server message through). `apiFetch` refreshes tokens proactively.
+- **Rules of Hooks:** every hook runs BEFORE any early return — the
+  `<Forbidden/>` guard goes after all hooks. Lint enforces this as an error.
+- **Invalidation:** broad domain keys (`["offers"]`, not `["offers","list"]`
+  — prefix matching covers sub-queries), and a mutation invalidates every
+  domain that embeds its data (user CRUD → trips+attendance; vehicle → trips;
+  invoice → orders; attendance/leave → **`["dashboard"]`**). The dashboard
+  also uses `refetchOnMount: "always"` as a backstop. Raw-`apiFetch` writes
+  still must invalidate their domains.
+- Single sources of truth: status chips/labels in `lib/documentStatus.ts`;
+  audit entity labels in `lib/entityTypeLabels.ts`; plan categories from the
+  DB. Don't duplicate label maps.
 
-### Query Invalidation Convention
+### Styling (MUI v7 — no custom .css, no Tailwind)
 
-Mutations must invalidate the **full domain** of any entity they touch. Prefer broad invalidation:
+- Theme in `src/admin/theme.ts` (cssVariables, light+dark schemes); global
-
+  rules in `GlobalStyles.tsx`; pages compose the kit in `src/admin/ui/` —
-- `["users"]` over `["users", "list"]`
+  reach for raw `@mui/material` only for one-off layout/infra.
-- `["trips"]` over `["trips", "vehicles"]`
+- Colours via **`theme.vars!.palette.*`**; alpha via channel tokens
-
+  (`rgba(${theme.vars!.palette.primary.mainChannel} / 0.12)`); per-scheme
-Reason: React Query's `invalidateQueries` uses prefix matching, so `["trips"]` matches all
+  one-offs via `theme.applyStyles("dark", …)`. No hardcoded hex.
-`["trips", ...]` sub-queries. This means new queries are automatically invalidated without
+- Don't regress: status row tints are channel-alpha washes (never `.light`
-updating every mutation handler. Inactive queries are only marked stale, not refetched, so
+  fills — invisible text in dark mode); icon badges are solid `X.main` +
-the performance cost is minimal. Optimize to targeted keys only when profiling shows a problem.
+  white glyph; the theme persists ONLY under MUI's `mui-mode` localStorage
-
+  key (ThemeContext owns `<html data-theme>`); dialogs lock `<html>` via
-When entity A embeds/references entity B, A's mutation handlers invalidate B's domain:
+  `useDialogScrollLock`; Modal/ConfirmDialog freeze content through the close
-
+  fade; ConfirmDialogs stay open with `loading` during their request.
-- User CRUD invalidates `["trips"]` and `["attendance"]` (both embed user data)
+- When refactoring pages, **preserve ALL data logic verbatim** (hooks,
-- Vehicle CRUD invalidates `["trips"]` (trips reference vehicles)
+  mutations, invalidate arrays, validation, permissions).
-- Invoice CRUD invalidates `["orders"]` (orders reference invoices)
 
 ---
 
-## Frontend — Styling & MUI (migration complete, shipped in v2.0.0)
+## AI Assistant — "Odin"
 
-The admin frontend is **fully on Material UI v7** (Emotion). The old ~7,100 lines of hand-written CSS are gone — **there are no custom `.css` files in `src/admin`**; the only stylesheets imported anywhere are the two third-party libs (`react-quill-new/dist/quill.snow.css`, `leaflet/dist/leaflet.css`). Look-and-feel is "Soft-SaaS shell + dense tables", dark/light preserved. Full history/decisions/gotchas live in agent memory (`project_mui_migration.md`); the original spec/plans are under `docs/superpowers/`.
+`ai.use`-gated Claude assistant at `/odin` (granted to admin). **Phase 2a:
+read-only agentic assistant** — chat turns run an agentic loop
+(`agenticChat` in `src/services/ai.service.ts`, max 6 round-trips, budget
+re-checked between iterations) over the read-only tools in
+`src/services/ai-tools.ts` (invoices, offers, orders, projects, customers,
+warehouse, attendance).
 
-**Where styling lives**
+**Security model (do not weaken):** Odin is the **user's delegate** — the
+tool list is pre-filtered by the caller's permissions AND every handler
+re-checks them (`ctxCan`); there are **NO write tools** (writes come in
+Phase 2b as propose→confirm action cards, never autonomous). Tool handlers
+call the same service functions the routes use. Assistant turns persist
+their tool trace in `ai_chat_messages.content_json` (plain `content` stays
+the display text); the UI shows consulted-tool chips. The system prompt
+enforces plain-text replies (the chat renders pre-wrap text, no Markdown).
 
-- **Theme — `src/admin/theme.ts`:** `cssVariables` with `colorSchemeSelector: "[data-theme='%s']"`, light + dark `colorSchemes`, tokens, component defaults. Use **`theme.vars!.palette.*`** (the `vars` field is typed optional → `!`) so colours resolve per scheme; for alpha use the channel tokens — `rgba(${theme.vars!.palette.primary.mainChannel} / 0.12)`; for per-scheme one-offs use `theme.applyStyles("dark", { … })`.
+Per-call cost ledger in `ai_usage` with a monthly budget cap (402 when
-- **Global rules — `src/admin/GlobalStyles.tsx`:** reset, typography, scrollbar, `::selection`, view-transition timing, and the utility classes (`.text-*`, `.flex-*`, `.mb-*`, …), all theme-aware. (The pre-React bootstrap spinner is inlined in `src/App.tsx` because it mounts before MUI.)
+exceeded). Invoice flow unchanged: PDF → `extract-invoices` (structured
-- **Component kit — `src/admin/ui/`:** AppShell, Button, Card, TextField, Select (string-based — convert ids at the boundary), DateField/MonthField/TimeField (date-fns v4, cs), Modal, ConfirmDialog (optional `children` + content freeze), DataTable (sortable + mobile card layout + `rowSx`/`rowDanger`/`rowInactive`), Pagination, Tabs/TabPanel, StatusChip, CheckboxField/SwitchField, Field, Alert, PageHeader, FilterBar, StatCard, ProgressBar, FileUpload, EmptyState, LoadingState, ThemeToggle, PageEnter (staggered page entrance), RichEditorRoot/RichTextView (Quill). Dev-only `/ui-kit` showcase route.
+output) → review cards → existing `POST /received-invoices`.
-
+**`received_invoices.amount` is GROSS (VAT-inclusive)** — VAT is
-**Building / editing pages**
+back-calculated (`vatFromGross`). Phase-2 design notes live in
-
+`docs/superpowers/specs/`.
-- Pages import from the **kit** (`src/admin/ui/`); reach for `@mui/material` (`styled`/`sx`) directly only for one-off layout or infra (theme, GlobalStyles, the Quill/Leaflet wrappers).
-- Wrap a page's top-level sections in `<PageEnter>`. Filters go in `<FilterBar>` with **bare** controls (no `<Field>` label) at the standard widths.
-- When refactoring, **preserve ALL data logic verbatim** (hooks, mutations, `invalidate` arrays, validation, permissions); change only presentation.
-
-**Conventions learned — don't regress**
-
-- **Status row tints** = subtle channel-alpha washes (`rgba(var(--mui-palette-X-mainChannel) / 0.12)`), NEVER a solid `.light` fill: `.light` is a light colour in BOTH schemes, so white dark-mode text on it is invisible. Voided/disabled rows = `opacity` + muted text.
-- **Icon badges** = solid `X.main` tile + **white** glyph (not an `X.light` tile + `X.main` glyph — that's low-contrast).
-- **Theme is single-source:** `src/context/ThemeContext.tsx` owns the `<html data-theme>` attribute + the View-Transitions cross-fade, and persists under MUI's **`mui-mode`** localStorage key (the same key MUI reads on mount). Do NOT add a second theme key — that desyncs page vs toggle on refresh.
-- **Dialogs** lock `<html>` via `useDialogScrollLock` (MUI only locks `<body>`, and `html{overflow-x:hidden}` makes `<html>` the scroller); Modal/ConfirmDialog freeze title/label/loading through the close fade so nothing flashes. Login renders OUTSIDE AppShell.
-
-**Gates every change:** `npx tsc -b --noEmit` (NOT `-p tsconfig.json` — a vacuous solution file that checks nothing), `npm run build`, `npx vitest run`.
 
 ---
 
-## Database Conventions
+## Database & Migrations
 
-- All models use `snake_case` column names; Prisma maps to camelCase in TypeScript.
+Conventions: snake_case columns; `created_at`/`updated_at` timestamps;
-- Soft-delete via `is_deleted` boolean (not all tables, check schema).
+soft-delete via `is_deleted` where present; `number_sequences` owns all
-- Timestamps: `created_at`, `updated_at` (auto-managed by Prisma).
+document numbering.
-- Number sequences (`number_sequences` table) manage invoice/quotation numbering — never hardcode numbering logic.
-- All significant tables have audit log entries. Check `audit_logs` model for the schema.
 
----
+**Golden rules:**
 
-## Database Migrations (Critical Workflow)
+- **NEVER `prisma db push`** — it bypasses migration history and causes drift.
+- **Every DB change is a tracked migration** — schema, permission/seed rows,
+  backfills, one-shot fixes. A migration's `migration.sql` may contain plain
+  `INSERT/UPDATE/DELETE`. No raw SQL against production, ever; `prisma db
+seed` is dev-only convenience (`prisma/seed.ts` refuses to run with
+  `APP_ENV=production`) — prod baselines belong in migrations.
 
-**Golden rule: NEVER use `prisma db push`.** It bypasses migration history and causes drift
+**Making a schema change (this shell is non-interactive — `prisma migrate
-between the schema and migration tracking. Always use `prisma migrate dev` for every schema change.
+dev` will refuse to run; use this recipe):**
-
-**Every database change or manipulation must be a tracked Prisma migration.** This includes:
-
-- Schema changes (tables, columns, indexes, constraints) — via `prisma migrate dev`
-- Permission/role/seed data changes — via a migration that does the INSERTs/DELETEs explicitly
-- Lookup data, default settings, or any other row-level baseline that production needs
-- Backfills, data fixes, and one-shot corrections that should be in sync across environments
-
-**What is NOT acceptable:**
-
-- Running raw SQL against production (`mysql -e "..."`, `npx prisma db execute`, `pm2 exec`)
-- `npx prisma db seed` as the only way to populate data (seed is dev-only convenience; prod must run the same SQL via a migration)
-- "I'll fix it in the seed file" or "I'll add a row manually" without a migration to back it
-
-The reason: every change to the production database must be reviewable, reversible, and reproducible from a fresh checkout. External SQL commands and seed-only changes cause drift — prod and dev diverge, rollback gets harder with every manual change, and the next deploy surprises us.
-
-If you need to insert/update/seed data on production, write a migration. The migration's `migration.sql` is a normal SQL file — `INSERT INTO ...`, `UPDATE ...`, `DELETE ...` are all valid. Prisma will run it via `prisma migrate deploy` like any other migration.
-
-### Making schema changes
-
-```
-1. Edit prisma/schema.prisma
-2. npx prisma migrate dev --name descriptive_name
-   → This creates a migration in prisma/migrations/ AND applies it to dev DB
-3. npx prisma generate
-4. Commit BOTH schema.prisma AND the new migration folder
-   git add prisma/schema.prisma prisma/migrations/
-```
-
-### Verifying before production deploy
 
 ```bash
-# Preview what SQL will run on production (no changes applied)
+# 1. Edit prisma/schema.prisma   (ask the user to stop their dev server first!)
-npx prisma migrate diff \
+# 2. Generate the migration SQL into a new folder:
-  --from-url "mysql://user:pass@prod:3306/app" \
+mkdir prisma/migrations/<yyyyMMddHHmmss>_<name>
-  --to-schema-datamodel prisma/schema.prisma \
+npx prisma migrate diff --from-config-datasource --to-schema prisma/schema.prisma --script \
-  --script
+  > prisma/migrations/<...>/migration.sql        # strip the BOM if written via PowerShell Out-File!
-
+# 3. Review the SQL, then apply + regenerate:
-# Empty output = no diff. If it shows SQL, review it before deploying.
+npx prisma migrate deploy
+npx prisma generate
+# 4. Apply to the test DB as well (suite breaks otherwise):
+#    DATABASE_URL=<app_test url> npx prisma migrate deploy
+# 5. Commit schema.prisma AND the migration folder together.
 ```
 
-### Deploying migrations to production
+Deployment, drift checks, hotfix-migration shipping and baselining:
-
+see **`docs/release.md`**.
-The release process runs `prisma migrate deploy` on production.
-This applies only pending migrations — safe, idempotent.
-
-### If migrations get out of sync (drift)
-
-```bash
-# Diff production DB against local schema to find drift
-npx prisma migrate diff \
-  --from-url "mysql://prod" \
-  --to-schema-datamodel prisma/schema.prisma \
-  --script
-
-# If drift is safe (CREATE only, no DROPs): apply with db push ONCE, then baseline
-# If drift includes DROPs: investigate before touching production
-```
-
-### Baselinining a database that has no migrations
-
-If production was synced with `db push` and has no `_prisma_migrations` table:
-
-```bash
-# 1. Create initial migration locally
-npx prisma migrate dev --name init
-
-# 2. Copy to production and mark as applied (no SQL runs)
-scp -r prisma/migrations user@prod:/var/www/app-ts/prisma/
-ssh user@prod
-cd /var/www/app-ts
-npx prisma migrate resolve --applied <migration_name>
-```
 
 ---
 
-## Conventions (enforced — verified by the 2026-06-06 audit)
+## Enforced Conventions (single source — merged 2026-06 audits)
-
-These are the unified rules across the codebase. Follow them for new code; the
-audit found and fixed the deviations. Full report: `docs/codebase-audit-2026-06-06.md`.
 
 **Routes**
 
-- **Responses:** always `success(reply, data[, status, message])` / `error(reply, msg, status)` / the paginated helper. Never raw `reply.send({ success: true, ... })`. (Some legacy files still do — convert when you touch them.)
+- `success()`/`error()`/paginated helpers only; `parseId` for numeric params
-- **Route ids:** parse numeric params with `parseId((request.params as any).id, reply)` then `if (id === null) return;`. Do not use raw `parseInt` (it yields `NaN`, not a 400).
+  (`if (id === null) return;`); `parseBody` for every body; permission guards
-- **Bodies:** validate every body with `parseBody(Schema, request.body)` → `if ("error" in body) return error(reply, body.error, 400)`.
+  on reads AND writes; `logAudit` with old/new values on every mutation.
-- **Permissions:** guard with `requirePermission` / `requireAnyPermission`. The admin shortcut is `authData.roleName === "admin"`. ⚠️ `AuthData` has **`roleName`**, not `role` (`role` only exists on `JwtPayload`). Don't type `authData` as `any` — it hides exactly this bug.
+- Role-management writes are admin-only and re-checked (no creating or
-- **Audit:** call `logAudit` on every create/update/delete (and on security-relevant actions like session/token termination) with `oldValues`/`newValues`.
+  rewriting the `admin` role).
-
-**Services**
-
-- Plain exported async functions; return `{ data }` or `{ error, status }` (preferred over discriminated unions). Services own Prisma; routes stay thin.
-- Respect soft-delete (`is_deleted: false`) in reads where the model has it.
 
 **Schemas (Zod 4)**
 
-- Use Zod 4 idioms: `z.strictObject({...})` / `z.looseObject({...})` (not deprecated `.strict()` / `.passthrough()`).
+- `z.strictObject`/`z.looseObject` (not deprecated `.strict()`/`.passthrough()`).
-- Shared coercion helpers (number-from-form, nullable-number, boolean-from-form) belong in `src/schemas/common.ts` — don't copy-paste the `z.union([z.number(), z.string()]).transform(Number)` idiom (it's duplicated ~150× today; consolidating is a tracked follow-up). New number coercions should guard against `NaN`.
+- **Shared coercion helpers in `src/schemas/common.ts` are MANDATORY** for
-- User-facing messages in **Czech**; identifiers/keys in English.
+  form-coerced fields: `numberFromForm`, `numberInRange`,
+  `nonNegativeNumberFromForm`, `positiveNumberFromForm`,
+  `intIdFromForm`/`nullableIntIdFromForm`, `nonNegativeIntFromForm`,
+  `booleanFromForm`, `isoDateString`, `dateTimeString`/`nullableDateTimeString`,
+  `timeString`, `emailOrEmpty`, `DocumentSectionSchema`. NEVER the raw
+  `z.union([z.number(), z.string()]).transform(Number)` idiom (silent NaN —
+  the single biggest historical bug class). FK ids → intIdFromForm;
+  quantities/prices → nonNegative/positive; bounded → numberInRange.
+- The date/time helpers are deliberately **lenient** (strip trailing time
+  components) because edit forms re-submit `toJSON`-serialized values.
+  Optional emails: `emailOrEmpty.nullish()` (a bare `.email()` 400s the form).
+- Align `max()` caps with the DB column widths (an over-cap string 500s at
+  Prisma instead of 400ing at Zod). Update schemas derive via
+  `.partial()` (+ `.omit()` for immutable fields like document numbers) —
+  and therefore must NOT carry top-level `.default()`s (Zod 4 `.partial()`
+  still injects field defaults into partial payloads).
+- User-facing messages in **Czech**; identifiers/tokens in English.
 
-**Frontend**
+**Determinism & concurrency**
 
-- **Query invalidation:** invalidate the **broad domain key** (`["offers"]`, not `["offers","list"]`). Prefix-matching covers sub-queries.
+- Timestamp/date-only sorts ALWAYS get an `{ id }` tiebreak (second-precision
-- **Single source of truth for shared maps:** audit `entity_type` → Czech label lives in `src/admin/lib/entityTypeLabels.ts` and MUST be keyed to the server's `EntityType` values (add the new key there when you add an entity type). Plan categories come from the DB via `lib/queries/plan.ts`. Don't duplicate label maps across files or across server/client.
+  columns make single-key sorts non-deterministic).
-- Prefer deriving state over `useEffect`; use React Query for fetching, not effects.
+- Read-modify-write of shared rows (stock, balances, sequences) runs inside
+  `prisma.$transaction` with `SELECT … FOR UPDATE` via **`tx.$queryRaw`**
+  (not `$executeRaw`), locking in global ascending-id order. Multi-statement
+  writes (header + items + sections) belong in ONE transaction.
+- Uniqueness checks go INSIDE the create transaction (pass the `tx` client to
+  the checker) and catch `P2002` → 409 as backstop.
 
-**Dates (two deliberate regimes — don't "fix" either)**
+**Errors**
 
-- **Plan module** does all date-only math in **UTC** (`setUTCDate`, `toISOString().slice(0,10)`) because its columns are `@db.Date` (UTC-midnight). Correct and stable.
+- Never silently swallow — every catch logs (`console.*` in services; there
-- **Attendance/leave** writes `@db.Date` at **local noon** (`new Date(y, m, d, 12, 0, 0)`).
+  is no request-scoped logger there). The only allowed silent catch is an
-- **Frontend "today" / date-string round-trips:** use `utils/date.ts` `localDateStr` (server) / `normalizeDateStr` (client). **Never** use `new Date().toISOString().split("T")[0]` for "today" — it's the UTC date and is a day early during the late-evening Prague window.
+  _expected_ condition (e.g. ENOENT-as-existence-check) **with a comment**.
+- Prefer explicit Czech 4xx over silently ignoring submitted fields.
 
 ---
 
-## Known Issues & Gotchas
+## Known Gotchas
 
-1. **Date.prototype.toJSON override** — global monkey-patch in `src/config/env.ts`. Side-effects on third-party libraries that serialize dates. Do not remove without migrating all date serialization.
+1. **CJS/ESM:** the server compiles to CommonJS; Vitest runs ESM
-
+   (`vitest.config.ts` bridges it). Beware ESM-only dependencies.
-2. **CJS/ESM mismatch in tests** — Server compiles to CommonJS (`tsconfig.server.json`), but Vitest runs in ESM by default. The `vitest.config.ts` resolves this, but be careful when adding dependencies that only support ESM.
+2. **Rich text / PDF security:** every rich-text/HTML field gets server-side
-
+   DOMPurify + the strict `cleanQuillHtml` from `src/utils/pdf-shared.ts` on
-3. **Mixed error patterns** — Some services return `{ error, status }`, others return discriminated unions `{ type: 'success' | 'error' }`. Prefer `{ error, status }` for consistency with existing routes.
+   the PDF path AND sanitization before any `dangerouslySetInnerHTML`. Never
-
+   pass unsanitized user data into Puppeteer templates; string-built HTML
-4. **Never swallow errors** — log at minimum; never use empty `catch` blocks. The service layer logs via `console.*` (there is no request-scoped pino logger in services). The NAS managers' previously-silent filesystem catches are now logged. One exception: a `catch` that handles an _expected_ condition (e.g. `ENOENT` used as an existence check) may stay silent **only with a comment** saying so.
+   (print views, PDF templates) must `escapeHtml` every interpolation.
-
+3. **NAS paths** may be unmounted in dev (`Z:`) — NAS features must degrade
-5. **HTML sanitization is in place — keep applying it** — Rich-text fields (invoice notes, quotation scope, order notes) ARE sanitized: server-side DOMPurify (jsdom) plus a `cleanQuillHtml` regex pass at all three PDF routes, and the frontend sanitizes before every `dangerouslySetInnerHTML` (InvoiceDetail, OrderDetail). (The old "sanitization gap" note was stale — verified by the 2026-06-06 audit.) When you add ANY new rich-text/HTML field, apply the same sanitization on BOTH the PDF path and the render path.
+   with logged errors, and tests stub NAS reads.
-
+4. **Prisma client**: regenerate after every schema change; it is not
-6. **Puppeteer PDF generation** — Runs a headless browser. Input to the HTML template must be sanitized. Do not pass unsanitized user data into PDF templates.
+   committed. (On prod this is a mandatory deploy step — see docs/release.md.)
-
+5. **No CSRF tokens** by design (SameSite=Strict + CORS) — do not weaken CORS.
-7. **NAS_PATH file access** — Project file uploads write to a network share path. In dev, this path may not be mounted. Features using `NAS_PATH` will fail gracefully (or not) if the path is unavailable.
+6. **Czech locale hardcoded** in messages/month names — intentional.
-
+7. **Cross-login caches:** React Query keys are user-agnostic; the query
-8. **Prisma client regeneration** — After any schema change and migration, run `npx prisma generate`. The generated client is not committed to git.
+   cache is cleared on login/logout in AuthContext — keep it that way.
-
-9. **No CSRF tokens** — CSRF protection relies on `SameSite=Strict` cookies + CORS. Do not weaken CORS configuration.
-
-10. **Czech locale hardcoded** — Error messages, month names, and some business logic strings are Czech. This is intentional.
-
-11. **Seed file is dev-only** — `prisma/seed.ts` is for local dev convenience. It is **not** the production data source. Any data the production database must have (permissions, default roles, baseline rows) belongs in a migration's `migration.sql`, not in the seed file. `npx prisma db seed` must never be run against production.
 
 ---
 
-## Release Process
+## Release
 
-1. Bump version in `package.json`
+Process, deployment commands, hotfix-migration shipping and verification
-2. `npm run build`
+checklist: **`docs/release.md`**. Run the full test suite before tagging; the
-3. Commit and tag (`git tag -a vX.Y.Z`)
+user picks version numbers. **Never push to production or restart services
-4. Push to Gitea (`git push origin master && git push origin vX.Y.Z`)
+without explicit confirmation.**
-5. Create tarball: `tar -czf app-ts-X.Y.Z.tar.gz dist dist-client prisma package.json package-lock.json scripts`
-6. Deploy via SSH to production server (`boha_admin@192.168.50.100`):
-   - Path: `/var/www/app-ts`
-   - Remove old files: `rm -rf dist dist-client prisma scripts package.json package-lock.json`
-   - Copy tarball to server: `scp app-ts-X.Y.Z.tar.gz boha_admin@192.168.50.100:/tmp/`
-   - Extract tarball: `tar -xzf /tmp/app-ts-X.Y.Z.tar.gz`
-   - Install dependencies: `npm install --omit=dev`
-   - Apply Prisma migrations: `npx prisma migrate deploy`
-   - Restart: `pm2 restart app-ts --update-env`
-
-### Hotfixing a migration that was added after the tarball was built
-
-If you write a new `prisma/migrations/<timestamp>_*` folder **after** the
-release tarball has already been built and shipped, that migration is
-NOT in the tarball and `prisma migrate deploy` on prod will report
-"No pending migrations". The release tarball re-build re-runs the whole
-release, but for a one-off hotfix you can ship just the new migration
-folder:
-
-```bash
-# Local
-cd prisma/migrations
-tar -czf /tmp/warehouse_perms_migration.tar.gz <timestamp>_<name>/
-scp /tmp/warehouse_perms_migration.tar.gz boha_admin@192.168.50.100:/tmp/
-
-# On prod
-ssh boha_admin@192.168.50.100
-cd /var/www/app-ts/prisma/migrations
-sudo -u boha_admin tar -xzf /tmp/warehouse_perms_migration.tar.gz
-cd /var/www/app-ts
-npx prisma migrate deploy
-pm2 restart app-ts --update-env
-```
-
-The migration is still tracked in git and applied via `prisma migrate
-deploy` — the only thing the tarball is doing is delivering the
-`migration.sql` to prod, which is the same mechanism the main release
-uses. This is preferred over running raw SQL on prod (which the policy
-in "Database Migrations" forbids).
-
-Do not push directly to production or restart services without confirmation.

README.md

@@ -0,0 +1,73 @@
+# boha-app-ts
+
+Internal business-management system for a Czech company (attendance, invoicing,
+leave/trips, projects, vehicles, warehouse, HR) — a TypeScript/Node.js rewrite
+of the legacy PHP app. User-facing text is Czech by design.
+
+> For full architecture, conventions, and gotchas, see **[CLAUDE.md](./CLAUDE.md)**.
+
+## Stack
+
+- **Backend:** Fastify 5 · Prisma 6 → MySQL · Zod 4 · JWT (HS256) + TOTP 2FA
+- **Frontend:** React 18 · Vite · Material UI v7 (Emotion) · TanStack Query — an
+  SPA in `src/admin/`, served by the same Fastify process (Vite middleware in
+  dev, static files in prod)
+- **Other:** Puppeteer (PDF) · nodemailer · node-cron · `@anthropic-ai/sdk` (the
+  admins-only "Odin" assistant)
+
+## Prerequisites
+
+- Node.js (LTS) and a MySQL database
+- Copy `.env.example` → `.env` and fill in the **required** vars (`DATABASE_URL`,
+  `JWT_SECRET`, `TOTP_ENCRYPTION_KEY` — generate the keys with `openssl rand -hex 32`)
+
+## Setup
+
+```bash
+npm install
+npx prisma generate
+npx prisma migrate dev      # apply migrations to your dev DB
+npx prisma db seed          # optional: dev-only sample data (NEVER on prod)
+```
+
+## Develop
+
+```bash
+npm run dev:server   # API (tsx watch) on http://127.0.0.1:3050
+npm run dev:client   # Vite dev server (manage separately)
+```
+
+## Build & run
+
+```bash
+npm run build        # tsc server → dist/  +  vite client → dist-client/
+npm start            # node dist/server.js
+```
+
+## Test
+
+```bash
+npm test             # vitest run — hits a real test DB (.env.test); no Prisma mocks
+```
+
+## Quality gates
+
+Before committing, all of these must pass:
+
+```bash
+npx tsc -b --noEmit  # typecheck (NOT `tsc -p tsconfig.json`)
+npm run build
+npx vitest run
+npm run lint         # ESLint (incl. react-hooks) — see eslint.config.js
+```
+
+## Database migrations
+
+Every schema/data change is a tracked Prisma migration — **never** `prisma db push`
+or raw SQL on production. Stop the dev server before running `prisma migrate dev`.
+See CLAUDE.md → _Database Migrations_ for the full workflow and the production
+deploy/hotfix process.
+
+## License
+
+ISC

REVIEW.md

@@ -0,0 +1,393 @@
+# Codebase Audit Checklist
+
+**Date:** 2026-06-09  |  **Total files:** 304  |  Scope: full project (source + config). Excluded: docs/*.md, prisma/migrations/*.sql (generated SQL), package-lock.json, binaries.
+
+## (root)
+
+- [x] .env.example
+- [x] .gitignore
+- [x] .prettierignore
+- [x] .prettierrc.json
+- [x] boneyard.config.json
+- [x] CLAUDE.md
+- [x] eslint.config.mjs
+- [x] index.html
+- [x] package.json
+- [x] prisma.config.ts
+- [x] tsconfig.app.json
+- [x] tsconfig.json
+- [x] tsconfig.server.json
+- [x] tsconfig.test.json
+- [x] vite.config.ts
+- [x] vitest.config.ts
+
+## .claude
+
+- [x] .claude/hooks/block-env.js
+- [x] .claude/hooks/format-on-save.js
+- [x] .claude/settings.json
+- [x] .claude/settings.local.json
+
+## prisma
+
+- [x] prisma/seed.ts
+- [x] prisma/schema.prisma
+
+## scripts
+
+- [x] scripts/check-roles.mjs
+- [x] scripts/migrate-received-invoices-to-nas.ts
+- [x] scripts/rotate-totp-key.ts
+- [x] scripts/seed-test-users.mjs
+
+## src/__tests__
+
+- [x] src/__tests__/ai.test.ts
+- [x] src/__tests__/auth.service.test.ts
+- [x] src/__tests__/auth.test.ts
+- [x] src/__tests__/bank-accounts.test.ts
+- [x] src/__tests__/company-settings-numbering.test.ts
+- [x] src/__tests__/customers.schema.test.ts
+- [x] src/__tests__/drafts-aggregation.test.ts
+- [x] src/__tests__/drafts-deferred-numbering.test.ts
+- [x] src/__tests__/env.test.ts
+- [x] src/__tests__/exchange-rates.test.ts
+- [x] src/__tests__/helpers.ts
+- [x] src/__tests__/invoices.service.test.ts
+- [x] src/__tests__/issued-orders.test.ts
+- [x] src/__tests__/manual-create.test.ts
+- [x] src/__tests__/nas-document-manager.test.ts
+- [x] src/__tests__/nas-file-manager.test.ts
+- [x] src/__tests__/nas-project-folder.test.ts
+- [x] src/__tests__/numbering.test.ts
+- [x] src/__tests__/offer-invoice-totals.test.ts
+- [x] src/__tests__/orders-list.test.ts
+- [x] src/__tests__/order-totals.test.ts
+- [x] src/__tests__/plan.test.ts
+- [x] src/__tests__/planAuditDescription.test.ts
+- [x] src/__tests__/planCategory.test.ts
+- [x] src/__tests__/received-invoices-vat.test.ts
+- [x] src/__tests__/setup.ts
+- [x] src/__tests__/schema-nan.test.ts
+- [x] src/__tests__/warehouse.test.ts
+
+## src/admin (AdminApp.tsx)
+
+- [x] src/admin/AdminApp.tsx
+
+## src/admin (components)
+
+- [x] src/admin/components/AlertContainer.tsx
+- [x] src/admin/components/AttendanceShiftTable.tsx
+- [x] src/admin/components/BulkAttendanceModal.tsx
+- [x] src/admin/components/BulkPlanModal.tsx
+- [x] src/admin/components/dashboard/DashActivityFeed.tsx
+- [x] src/admin/components/dashboard/DashAttendanceToday.tsx
+- [x] src/admin/components/dashboard/DashKpiCards.tsx
+- [x] src/admin/components/dashboard/DashProfile.tsx
+- [x] src/admin/components/dashboard/DashQuickActions.tsx
+- [x] src/admin/components/dashboard/DashSessions.tsx
+- [x] src/admin/components/dashboard/DashTodayPlan.tsx
+- [x] src/admin/components/ErrorBoundary.tsx
+- [x] src/admin/components/Forbidden.tsx
+- [x] src/admin/components/odin/InvoiceReviewCard.tsx
+- [x] src/admin/components/odin/OdinComposer.tsx
+- [x] src/admin/components/odin/OdinChat.tsx
+- [x] src/admin/components/odin/OdinMark.tsx
+- [x] src/admin/components/odin/OdinSidebar.tsx
+- [x] src/admin/components/odin/OdinThread.tsx
+- [x] src/admin/components/odin/types.ts
+- [x] src/admin/components/OrderConfirmationModal.tsx
+- [x] src/admin/components/PlanCategoriesModal.tsx
+- [x] src/admin/components/PlanCellModal.tsx
+- [x] src/admin/components/PlanGrid.tsx
+- [x] src/admin/components/PlanRangeChips.tsx
+- [x] src/admin/components/ProjectFileManager.tsx
+- [x] src/admin/components/RichEditor.tsx
+- [x] src/admin/components/ShiftFormModal.tsx
+- [x] src/admin/components/ShortcutsHelp.tsx
+- [x] src/admin/components/warehouse/ItemPicker.tsx
+- [x] src/admin/components/warehouse/ReservationPicker.tsx
+
+## src/admin (context)
+
+- [x] src/admin/context/AlertContext.tsx
+- [x] src/admin/context/AuthContext.tsx
+
+## src/admin (GlobalStyles.tsx)
+
+- [x] src/admin/GlobalStyles.tsx
+
+## src/admin (hooks)
+
+- [x] src/admin/hooks/useAttendanceAdmin.ts
+- [x] src/admin/hooks/useDebounce.ts
+- [x] src/admin/hooks/useModalLock.ts
+- [x] src/admin/hooks/usePaginatedQuery.ts
+- [x] src/admin/hooks/usePlanWork.ts
+- [x] src/admin/hooks/useReducedMotion.ts
+- [x] src/admin/hooks/useTableSort.ts
+
+## src/admin (lib)
+
+- [x] src/admin/lib/apiAdapter.ts
+- [x] src/admin/lib/documentStatus.ts
+- [x] src/admin/lib/entityTypeLabels.ts
+- [x] src/admin/lib/queries/ai.ts
+- [x] src/admin/lib/queries/attendance.ts
+- [x] src/admin/lib/queries/auditLog.ts
+- [x] src/admin/lib/queries/common.ts
+- [x] src/admin/lib/queries/dashboard.ts
+- [x] src/admin/lib/queries/invoices.ts
+- [x] src/admin/lib/queries/issued-orders.ts
+- [x] src/admin/lib/queries/leave.ts
+- [x] src/admin/lib/queries/mutations.ts
+- [x] src/admin/lib/queries/offers.ts
+- [x] src/admin/lib/queries/orders.ts
+- [x] src/admin/lib/queries/plan.ts
+- [x] src/admin/lib/queries/projects.ts
+- [x] src/admin/lib/queries/settings.ts
+- [x] src/admin/lib/queries/trips.ts
+- [x] src/admin/lib/queries/users.ts
+- [x] src/admin/lib/queries/vehicles.ts
+- [x] src/admin/lib/queries/warehouse.ts
+- [x] src/admin/lib/queryClient.ts
+
+## src/admin (pages)
+
+- [x] src/admin/pages/Attendance.tsx
+- [x] src/admin/pages/AttendanceAdmin.tsx
+- [x] src/admin/pages/AttendanceBalances.tsx
+- [x] src/admin/pages/AttendanceCreate.tsx
+- [x] src/admin/pages/AttendanceHistory.tsx
+- [x] src/admin/pages/AttendanceLocation.tsx
+- [x] src/admin/pages/AuditLog.tsx
+- [x] src/admin/pages/CompanySettings.tsx
+- [x] src/admin/pages/Dashboard.tsx
+- [x] src/admin/pages/InvoiceDetail.tsx
+- [x] src/admin/pages/Invoices.tsx
+- [x] src/admin/pages/IssuedOrderDetail.tsx
+- [x] src/admin/pages/IssuedOrders.tsx
+- [x] src/admin/pages/LeaveApproval.tsx
+- [x] src/admin/pages/LeaveRequests.tsx
+- [x] src/admin/pages/Login.tsx
+- [x] src/admin/pages/NotFound.tsx
+- [x] src/admin/pages/Odin.tsx
+- [x] src/admin/pages/OfferDetail.tsx
+- [x] src/admin/pages/Offers.tsx
+- [x] src/admin/pages/OffersCustomers.tsx
+- [x] src/admin/pages/OffersTemplates.tsx
+- [x] src/admin/pages/OrderDetail.tsx
+- [x] src/admin/pages/Orders.tsx
+- [x] src/admin/pages/PlanWork.tsx
+- [x] src/admin/pages/ProjectDetail.tsx
+- [x] src/admin/pages/Projects.tsx
+- [x] src/admin/pages/ReceivedInvoices.tsx
+- [x] src/admin/pages/ReceivedOrders.tsx
+- [x] src/admin/pages/Settings.tsx
+- [x] src/admin/pages/Trips.tsx
+- [x] src/admin/pages/TripsAdmin.tsx
+- [x] src/admin/pages/TripsHistory.tsx
+- [x] src/admin/pages/UiKit.tsx
+- [x] src/admin/pages/Users.tsx
+- [x] src/admin/pages/Vehicles.tsx
+- [x] src/admin/pages/Warehouse.tsx
+- [x] src/admin/pages/WarehouseCategories.tsx
+- [x] src/admin/pages/WarehouseInventory.tsx
+- [x] src/admin/pages/WarehouseInventoryDetail.tsx
+- [x] src/admin/pages/WarehouseInventoryForm.tsx
+- [x] src/admin/pages/WarehouseIssueDetail.tsx
+- [x] src/admin/pages/WarehouseIssueForm.tsx
+- [x] src/admin/pages/WarehouseIssues.tsx
+- [x] src/admin/pages/WarehouseItemDetail.tsx
+- [x] src/admin/pages/WarehouseItems.tsx
+- [x] src/admin/pages/WarehouseLocations.tsx
+- [x] src/admin/pages/WarehouseReceiptDetail.tsx
+- [x] src/admin/pages/WarehouseReceiptForm.tsx
+- [x] src/admin/pages/WarehouseReceipts.tsx
+- [x] src/admin/pages/WarehouseReports.tsx
+- [x] src/admin/pages/WarehouseReservations.tsx
+- [x] src/admin/pages/WarehouseSuppliers.tsx
+
+## src/admin (theme.test.ts)
+
+- [x] src/admin/theme.test.ts
+
+## src/admin (theme.ts)
+
+- [x] src/admin/theme.ts
+
+## src/admin (ui)
+
+- [x] src/admin/ui/Alert.tsx
+- [x] src/admin/ui/AppShell.tsx
+- [x] src/admin/ui/Button.tsx
+- [x] src/admin/ui/Card.tsx
+- [x] src/admin/ui/ConfirmDialog.tsx
+- [x] src/admin/ui/CustomerPicker.tsx
+- [x] src/admin/ui/DataTable.tsx
+- [x] src/admin/ui/DateField.tsx
+- [x] src/admin/ui/EmptyState.tsx
+- [x] src/admin/ui/Field.tsx
+- [x] src/admin/ui/FileUpload.tsx
+- [x] src/admin/ui/FilterBar.tsx
+- [x] src/admin/ui/Checkbox.tsx
+- [x] src/admin/ui/index.ts
+- [x] src/admin/ui/LoadingState.tsx
+- [x] src/admin/ui/Modal.tsx
+- [x] src/admin/ui/MonthField.tsx
+- [x] src/admin/ui/MuiProvider.tsx
+- [x] src/admin/ui/navData.tsx
+- [x] src/admin/ui/PageEnter.tsx
+- [x] src/admin/ui/PageHeader.tsx
+- [x] src/admin/ui/Pagination.tsx
+- [x] src/admin/ui/ProgressBar.tsx
+- [x] src/admin/ui/RichText.tsx
+- [x] src/admin/ui/Select.tsx
+- [x] src/admin/ui/SidebarNav.tsx
+- [x] src/admin/ui/StatCard.tsx
+- [x] src/admin/ui/StatusChip.tsx
+- [x] src/admin/ui/Tabs.tsx
+- [x] src/admin/ui/TextField.tsx
+- [x] src/admin/ui/ThemeToggle.tsx
+- [x] src/admin/ui/TimeField.tsx
+- [x] src/admin/ui/useDialogScrollLock.ts
+
+## src/admin (utils)
+
+- [x] src/admin/utils/api.ts
+- [x] src/admin/utils/attendanceHelpers.ts
+- [x] src/admin/utils/dashboardHelpers.ts
+- [x] src/admin/utils/formatters.ts
+
+## src/App.tsx
+
+- [x] src/App.tsx
+
+## src/config
+
+- [x] src/config/database.ts
+- [x] src/config/env.ts
+
+## src/context
+
+- [x] src/context/ThemeContext.tsx
+
+## src/main.tsx
+
+- [x] src/main.tsx
+
+## src/middleware
+
+- [x] src/middleware/auth.ts
+- [x] src/middleware/security.ts
+
+## src/routes
+
+- [x] src/routes/admin/ai.ts
+- [x] src/routes/admin/attendance.ts
+- [x] src/routes/admin/audit-log.ts
+- [x] src/routes/admin/auth.ts
+- [x] src/routes/admin/bank-accounts.ts
+- [x] src/routes/admin/company-settings.ts
+- [x] src/routes/admin/customers.ts
+- [x] src/routes/admin/dashboard.ts
+- [x] src/routes/admin/invoices.ts
+- [x] src/routes/admin/invoices-pdf.ts
+- [x] src/routes/admin/issued-orders.ts
+- [x] src/routes/admin/issued-orders-pdf.ts
+- [x] src/routes/admin/leave-requests.ts
+- [x] src/routes/admin/offers-pdf.ts
+- [x] src/routes/admin/orders.ts
+- [x] src/routes/admin/orders-pdf.ts
+- [x] src/routes/admin/plan.ts
+- [x] src/routes/admin/profile.ts
+- [x] src/routes/admin/project-files.ts
+- [x] src/routes/admin/projects.ts
+- [x] src/routes/admin/quotations.ts
+- [x] src/routes/admin/received-invoices.ts
+- [x] src/routes/admin/roles.ts
+- [x] src/routes/admin/scope-templates.ts
+- [x] src/routes/admin/sessions.ts
+- [x] src/routes/admin/totp.ts
+- [x] src/routes/admin/trips.ts
+- [x] src/routes/admin/users.ts
+- [x] src/routes/admin/vehicles.ts
+- [x] src/routes/admin/warehouse.ts
+
+## src/server.ts
+
+- [x] src/server.ts
+
+## src/services
+
+- [x] src/services/ai.service.ts
+- [x] src/services/attendance.service.ts
+- [x] src/services/audit.ts
+- [x] src/services/auth.ts
+- [x] src/services/exchange-rates.ts
+- [x] src/services/invoice-alerts.ts
+- [x] src/services/invoices.service.ts
+- [x] src/services/issued-orders.service.ts
+- [x] src/services/leave-notification.ts
+- [x] src/services/mailer.ts
+- [x] src/services/nas-file-manager.ts
+- [x] src/services/nas-financials-manager.ts
+- [x] src/services/nas-offers-manager.ts
+- [x] src/services/numbering.service.ts
+- [x] src/services/offers.service.ts
+- [x] src/services/orders.service.ts
+- [x] src/services/plan.service.ts
+- [x] src/services/planCategory.service.ts
+- [x] src/services/projects.service.ts
+- [x] src/services/system-settings.ts
+- [x] src/services/users.service.ts
+- [x] src/services/warehouse.service.ts
+
+## src/schemas
+
+- [x] src/schemas/ai.schema.ts
+- [x] src/schemas/attendance.schema.ts
+- [x] src/schemas/auth.schema.ts
+- [x] src/schemas/bank-accounts.schema.ts
+- [x] src/schemas/common.ts
+- [x] src/schemas/customers.schema.ts
+- [x] src/schemas/invoices.schema.ts
+- [x] src/schemas/issued-orders.schema.ts
+- [x] src/schemas/leave-requests.schema.ts
+- [x] src/schemas/offers.schema.ts
+- [x] src/schemas/orders.schema.ts
+- [x] src/schemas/plan.schema.ts
+- [x] src/schemas/planCategory.schema.ts
+- [x] src/schemas/profile.schema.ts
+- [x] src/schemas/projects.schema.ts
+- [x] src/schemas/received-invoices.schema.ts
+- [x] src/schemas/roles.schema.ts
+- [x] src/schemas/scope-templates.schema.ts
+- [x] src/schemas/settings.schema.ts
+- [x] src/schemas/trips.schema.ts
+- [x] src/schemas/users.schema.ts
+- [x] src/schemas/vehicles.schema.ts
+- [x] src/schemas/warehouse.schema.ts
+
+## src/types
+
+- [x] src/types/fastify.d.ts
+- [x] src/types/index.ts
+
+## src/utils
+
+- [x] src/utils/czech-holidays.ts
+- [x] src/utils/date.ts
+- [x] src/utils/encryption.ts
+- [x] src/utils/html-to-pdf.ts
+- [x] src/utils/pagination.ts
+- [x] src/utils/planAuditDescription.ts
+- [x] src/utils/response.ts
+- [x] src/utils/totp.ts
+
+## src/vite-env.d.ts
+
+- [x] src/vite-env.d.ts
+
+

docs/cross-module-consistency-audit-2026-06-09.md

@@ -0,0 +1,180 @@
+# Cross-Module Consistency Report: Offers, Invoices, Orders
+
+> Generated 2026-06-09 by a multi-agent UI/UX audit (4 by-dimension examiners + synthesis)
+> across the Offers (nabídky), Invoices (faktury), and Orders (objednávky) modules.
+> Examination only — no code was changed. File:line refs are at the time of the audit.
+
+## 1. Executive Summary
+
+The three document modules (Offers, Invoices, Orders) share a strong common foundation — `PageEnter`/`PageHeader`/`Card`/`FilterBar`/`DataTable`/`StatusChip`/`Pagination`, a near-identical line-item editor (dnd-kit drag, mobile cards, monospace per-row totals, per-rate VAT breakdown), and a uniform totals layout — so the divergences are concentrated in a handful of presentational and behavioral details rather than the architecture. **No single module is canonical across the board:** Invoices is the most mature on list-level intelligence (KPI StatCards, overdue row tinting) and is the only one with a polished load pattern (ReceivedInvoices' `hasLoadedOnce` skeleton suppression); Issued Orders is the cleanest detail-page reference (single editable form with a `readOnly` prop, semantically correct status-transition button colors); and Offers is the best on list-level state richness (three-tier `rowSx` tinting, search-aware empty states) but the worst on detail-form fidelity (raw HTML checkboxes, action-icon overload). The highest-value work clusters into four buckets: bring Orders up to Invoices' list intelligence (KPIs, filters, row tinting), converge the three detail forms on shared MUI kit components (Autocomplete customer picker, MUI Checkbox, RichEditor notes), fix two genuine safety/feature bugs (delete-button guards and Orders' missing delete), and a long tail of cheap label/width/alignment unifications in the line-item tables.
+
+## 2. Recommended Canonical Patterns
+
+| Dimension                       | Standardize on                                                                               | Why                                                                                        |
+| ------------------------------- | -------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------ |
+| List KPI cards                  | **Invoices** (`Invoices.tsx:420-505`)                                                        | Only module with a 4-card metrics grid; gives business context Orders/Offers lack          |
+| List load/skeleton              | **ReceivedInvoices** (`hasLoadedOnce` ref, lines 325/688/784)                                | Skeleton only on first mount, suppressed on refetch — no full-page blocking jank           |
+| List row state tinting          | **Offers** (`Offers.tsx:650-684`) three-tier `rowSx`                                         | Richest at-a-glance lifecycle signal; Invoices' single overdue tint is the minimal version |
+| List status filter              | **Tabs** for ≤4 states (Offers/Invoices), **Select** for ≥5 (IssuedOrders)                   | Tabs show all options inline; Select scales — choose by option count                       |
+| Search-aware empty state        | **Offers** (`Offers.tsx:840-855`)                                                            | Distinguishes search-empty (no CTA) from list-empty (with CTA)                             |
+| Detail read-only mode           | **IssuedOrderDetail** (single form + `readOnly` prop, `:638`)                                | DRY; avoids InvoiceDetail's duplicate read-only JSX branch that must be hand-synced        |
+| Status-transition button colors | **IssuedOrderDetail** (`:903-917`)                                                           | Destructive = `outlined`+`error`, positive = `contained`+`primary` (semantically correct)  |
+| Save-button loading             | **Invoice/Order** (CircularProgress + text)                                                  | Clearer visual signal than Offers' text-only swap                                          |
+| Detail guard placement          | **OfferDetail** (all guards top-level, `:1087-1091`)                                         | Flattest; no `if (!dataReady)` buried inside render branches                               |
+| Customer/supplier picker        | **MUI Autocomplete freeSolo** (as in `ReceivedInvoices.tsx:914-929`)                         | Keyboard-accessible, searchable, Material-standard                                         |
+| Boolean fields                  | **MUI `CheckboxField` kit** (as in OrdersReceived modal)                                     | Themed, accessible; replaces raw `<input type=checkbox>`                                   |
+| Notes fields                    | **RichEditor** (Offers/Orders already)                                                       | Uniform editing; future-proof for formatting                                               |
+| `issued_by`                     | **Read-only, auto-filled** (Invoices, `:1881-1885`)                                          | Immutable provenance tied to the issuing user                                              |
+| Currency options                | **Company settings** (Offers/Invoices)                                                       | Admin-configurable without code change                                                     |
+| Line-item labels/widths         | **Invoices+Orders majority** ("Jedn. cena", qty `5.5rem`, remove `2.5rem`, `align="center"`) | 2-of-3 already agree; Offers is the lone outlier                                           |
+| Amount column header            | **"Celkem"** (all but ReceivedInvoices' "Částka")                                            | Single label for the same concept                                                          |
+
+## 3. Inconsistencies by Dimension
+
+### A. Tables & Lists
+
+**HIGH — Orders lack KPI StatCards.** Invoices renders a 4-card metrics grid (`Invoices.tsx:420-505`; ReceivedInvoices `:687-761`); IssuedOrders, OrdersReceived, and Offers render none. Orders users lose pipeline visibility (count by status, total value). Fix: add a 4-StatCard grid to IssuedOrders/OrdersReceived mirroring the Invoices layout. Decide whether Offers warrants its own. Effort: **M**.
+
+**HIGH — Offers row-action overload (6-7 icons vs 3).** `Offers.tsx:540-641` renders View/Edit, Duplicate, Show/Create Order, Invalidate, PDF, Delete; Invoices/IssuedOrders/OrdersReceived keep 3. Fix: reduce Offers to 4 (View/Edit, Order toggle, PDF, Delete); move Duplicate/Invalidate into a row overflow menu or the detail page. Effort: **M**.
+
+**MED — Orders missing list features that Invoices/Offers have.**
+
+- _Row state tinting:_ Offers 3-tier (`:650-684`), Invoices 1-tier overdue (`:510-526`), all three Orders modules + ReceivedInvoices = none. Add `rowSx` (completed→success wash, overdue/expired→warning, voided→opacity) using the channel-alpha convention. Effort: **S** each.
+- _Status filter:_ OrdersReceived has none; add a Select like IssuedOrders (`:305-313`, `STATUS_OPTIONS` `:53`). Effort: **S**.
+- _Sortable columns:_ IssuedOrders/OrdersReceived expose only 3 `sortKey`s vs 5-6 in Invoices/Offers; add customer_name, total, status. Effort: **S**.
+
+**MED — Load pattern blocks the page on refetch.** Offers (`:453`), Invoices (`:402`), IssuedOrders (`:189`), OrdersReceived (`:328`) return a full `<LoadingState/>` whenever `isPending`; only ReceivedInvoices suppresses the skeleton after first load (`hasLoadedOnce`, `:325/688/784`). Adopt the `hasLoadedOnce` ref pattern everywhere. Effort: **S-M**.
+
+**MED — Amount column label split.** ReceivedInvoices uses "Částka"; everyone else "Celkem". Rename "Částka"→"Celkem". (supplier-vs-customer terminology "Dodavatel"/"Zákazník" is correctly domain-specific — leave it.) Effort: **S**.
+
+**LOW — Offers tabs not centered.** Invoices/Orders wrap Tabs in a centered Box (`Invoices.tsx:712-721`, `Orders.tsx:161-170`); Offers (`:717-726`) left-aligns. Effort: **S**.
+
+**LOW — Empty-state copy not search-aware.** Offers distinguishes search-empty vs list-empty (`:840-855`); the others show one message (+ stale CTA when filtered to empty). Effort: **S**.
+
+_Already fine: PageHeader, FilterBar layout, Pagination placement, StatusChip colors, search-placeholder copy, draft-banner presence (Offers/Invoices by design)._
+
+### B. Detail Buttons & Layout
+
+**HIGH — Delete-button safety bugs + Orders feature gap.**
+
+- OfferDetail (`:1191-1199`) allows delete even when invalidated/locked/completed.
+- InvoiceDetail (`:1167-1175`, `:1734-1742`) allows delete even when `paid`.
+- IssuedOrderDetail has **no delete at all** (no button/mutation/handler).
+  Fix: add `!readOnly`/status guards to Offers and Invoices; add a guarded delete to IssuedOrderDetail for parity. Effort: **M**.
+
+**HIGH — Detail read-only handling diverges.** IssuedOrderDetail uses one form with a `readOnly`/`editable` flag (`:638`); InvoiceDetail forks a whole separate read-only JSX branch for paid invoices (`:1104-1615`) that must be hand-synced; OfferDetail is always editable. Fix: refactor InvoiceDetail's paid view to the single-form-`readOnly`-prop model. Effort: **L**.
+
+**MED — Status-transition button styling inverted.** InvoiceDetail emphasizes positive ("paid"→`contained`+`primary`, `:1719-1733`); IssuedOrderDetail emphasizes danger ("cancelled"→`outlined`+`error`, `:903-917`). Standardize on the Order rule. Effort: **S**.
+
+**MED — Back-button target inconsistent.** OfferDetail→`/offers` (`:1108`), InvoiceDetail→`/invoices` (`:1124`/`:1639`), IssuedOrderDetail→`/orders?tab=vydane` (`:836`). Make tabbed-landing modules carry the tab param: Invoices→`/invoices?tab=issued`. Effort: **S**.
+
+**LOW — Save-button loading style.** Offers text-only (`:1187`); Invoice/Order spinner+text. Switch Offers to spinner+text. Effort: **S**.
+
+**LOW — Create-success invalidation scope.** OfferDetail invalidates `["offers","orders","projects","invoices"]` (`:927`); Invoice/Order invalidate only their own domain. Verify Invoice/Order touch no foreign domains, else widen. Effort: **S**.
+
+**LOW — Guard placement.** Hoist Invoice/Order `if (!dataReady)` guards to OfferDetail's top-level pattern when touching those files. Effort: **S**.
+
+_Already fine: PageEnter wrapper, header layout + `headerActionsSx`, StatusChip-in-header, mobile breakpoints, Card sectioning, items-table structure, totals block, permission guards._
+
+### C. Forms & Fields
+
+**HIGH — Customer/supplier picker: 3 different widgets.** Offers (`OfferDetail.tsx:1307-1373`) and Invoices (`InvoiceDetail.tsx:1816-1876`) use a hand-rolled searchable dropdown; IssuedOrders (`:935-948`) uses a plain non-searchable `<Select>`; ReceivedInvoices (`:914-929`) uses MUI `Autocomplete freeSolo`. Standardize all on `Autocomplete freeSolo`. Effort: **M**.
+
+**HIGH — `apply_vat` boolean: MUI Checkbox vs raw `<input>`.** Offers uses MUI `Checkbox` (`:1482-1488`); InvoiceDetail (`:2008-2017`) and IssuedOrderDetail (`:1023-1035`) use raw `<input type="checkbox">`. Standardize on the kit `CheckboxField`. Effort: **S**.
+
+**HIGH — Notes field: TextField vs RichEditor.** Offers (`:1953-1966`) and Orders (`:1257-1272`) use RichEditor; Invoices (`:2232-2240`) and ReceivedInvoices modal (`:1214-1225`) use plain multiline TextField. Move Invoices notes to RichEditor — and per CLAUDE.md gotcha #5, apply DOMPurify + `cleanQuillHtml` sanitization on both the PDF and render paths. Effort: **M**.
+
+**MED — `issued_by` editable in Orders, read-only in Invoices.** Make Orders read-only + auto-filled from auth. Effort: **S**.
+
+**MED — VAT rate/toggle layout differs.** Adopt Offers' dual-field (rate Select + toggle) where a per-document rate applies. Effort: **M**.
+
+**LOW — Currency options hard-coded in Orders.** IssuedOrders (`:96-99,985`) and OrdersReceived modal (`:575-580`) hard-code; point at company settings. Effort: **S**.
+
+_Already fine: `<Field>` wrapper + error display, DateField usage, totals footer, Card grouping, basic-info grid, delivery/payment terms being Orders-only (domain-justified)._
+
+### D. Line-Item Editors
+
+Offers is the consistent outlier; Invoices+Orders already agree — canonicalize on them. Cheap, mostly-mechanical edits in `OfferDetail.tsx` (plus one internal Invoices fix).
+
+**MED — Unit-price label.** Offers "Cena/ks" (`:336`, `:1625`) → "Jedn. cena". Effort: **S**.
+**MED — Unit-price + quantity header alignment/width.** Offers default-left, qty `5rem` → `align="center"`, qty `5.5rem`. Also InvoiceDetail's paid read-only header uses `align="right"` (`:1429`) — switch to `center`. Effort: **S**.
+**MED — Grand-total label.** Invoices "Celkem k úhradě:" is domain-appropriate (payment context) — **keep, intentional.**
+**MED — Editable VAT-column header.** Unify the two editable forms on "DPH"; align Invoices' paid-view header. Effort: **S**.
+**LOW — Remove-button cell width.** Offers `3rem` → `2.5rem`. Effort: **S**.
+
+_Already fine: description/detail multiline fields (rows=2, vertical resize), unit-price column width `8rem`, per-row monospace total, mobile card metrics, dnd-kit drag config, totals area layout, per-rate VAT breakdown._
+
+## 4. Suggested Fix Order
+
+**Batch 1 — Mechanical quick wins (low judgment, low risk).**
+
+1. Line-item unifications in `OfferDetail.tsx`: "Cena/ks"→"Jedn. cena", qty width `5rem`→`5.5rem`, `align="center"` on qty/unit-price headers, remove-button cell `3rem`→`2.5rem`. Plus in-Invoices fixes (paid-view unit-price `right`→`center`; "%DPH"→"DPH").
+2. List: "Částka"→"Celkem" (ReceivedInvoices); center Offers tabs.
+3. Detail: Offers save button → spinner+text; standardize status-transition button colors (Order rule); back-button tab params (Invoices→`?tab=issued`).
+4. Forms: `apply_vat` raw `<input>` → kit `CheckboxField` in Invoice/Order; Orders currency Select → company settings; Orders `issued_by` read-only+auto-filled.
+
+**Batch 2 — Small behavioral additions (per-file logic, light judgment).** 5. Add `rowSx` state tinting to the three Orders modules (+ optionally ReceivedInvoices). 6. Add OrdersReceived status-filter Select; widen IssuedOrders/OrdersReceived `sortKey` coverage. 7. Adopt `hasLoadedOnce` skeleton-suppression in Offers/Invoices/IssuedOrders/OrdersReceived. 8. Search-aware empty states (Offers pattern) in Invoices/IssuedOrders/OrdersReceived.
+
+**Batch 3 — Safety/feature bug fixes (need judgment, preserve data logic).** 9. Delete-button guards: add `!readOnly`/status checks to Offers + Invoices; add a guarded delete to IssuedOrderDetail for parity. 10. Verify create-success invalidation scope for Invoice/Order; widen only if they touch foreign domains.
+
+**Batch 4 — Shared-component & layout refactors (largest, most judgment).** 11. Replace the three customer/supplier pickers with one `Autocomplete freeSolo` (consider a shared `CustomerPicker` kit component). 12. Move Invoices notes to RichEditor + wire DOMPurify/`cleanQuillHtml` on PDF + render paths. 13. Unify VAT rate/toggle layout on Offers' dual-field pattern. 14. Add KPI StatCard grids to IssuedOrders/OrdersReceived (decide metrics; consider an Offers variant). 15. Refactor InvoiceDetail's separate paid read-only branch into the single-form-`readOnly`-prop model; hoist guards to top-level. 16. Reduce Offers row actions to 4 (move Duplicate/Invalidate to overflow menu/detail).
+
+## 5. Already Consistent — Do Not Touch
+
+- **Shell & layout:** `PageEnter`, `PageHeader`, `Card` sectioning, `FilterBar`, header layout + `headerActionsSx`, StatusChip-in-header, mobile breakpoints.
+- **Lists:** DataTable rendering, Pagination placement, StatusChip semantic colors, search-placeholder copy, draft-banner presence (by design).
+- **Forms:** `<Field>` wrapper + error display, DateField, totals footer, basic-info grid, delivery/payment terms being Orders-only.
+- **Line items:** description/detail multiline (rows=2, vertical resize), unit-price width `8rem`, per-row monospace total, mobile card metrics, dnd-kit drag, totals layout, per-rate VAT breakdown.
+- **Cross-cutting:** success/error handling, `formatCurrency`, permission guards.
+
+**Intentional differences to preserve:** Invoices' "Celkem k úhradě:" grand-total wording (payment context) and the supplier-vs-customer ("Dodavatel"/"Zákazník") terminology.
+
+---
+
+# Part 2 — Status/State Models + Draft Persistence (follow-up audit)
+
+> Generated 2026-06-09 by a second multi-agent audit (status models + draft persistence).
+
+## Summary
+
+The five document types share the same conceptual lifecycle (draft → active → terminal/paid) but agree on almost nothing in implementation. State is stored two ways (raw `String(30)` vs Prisma enum), keyed in two languages (Czech for customer-orders, English for everything else), enforced with three transition styles, and rendered through **six separately-maintained label/color maps that have already drifted** (the same `issued` status is amber in the list, blue in the detail). Draft persistence works end-to-end only for Offers, is **half-wired for Issued Invoices (a banner promises a draft that is never written)**, and is absent everywhere else. The theme is **copy-paste divergence with no shared source of truth**.
+
+## State-model comparison
+
+| Document                             | Storage                    | Key language                                                 | #States | Transitions                      | Auto-transitions                         | Edit-lock                              | Color consistency                                      |
+| ------------------------------------ | -------------------------- | ------------------------------------------------------------ | ------- | -------------------------------- | ---------------------------------------- | -------------------------------------- | ------------------------------------------------------ |
+| Offer (quotations)                   | `String(30)` def `active`  | mixed (`active`/`ordered`/`invalidated`)                     | 3       | none (manual; `invalidateOffer`) | none                                     | locked only when `invalidated`         | **no label/color map** (tabs only)                     |
+| Customer Order (orders)              | `String(30)` def `prijata` | **Czech** (`prijata`/`v_realizaci`/`dokoncena`/`stornovana`) | 4       | `VALID_TRANSITIONS`              | → project status sync                    | items lock in `dokoncena`/`stornovana` | consistent list↔detail                                 |
+| Issued Order (issued_orders)         | **enum** def `draft`       | English (`draft`/`sent`/`confirmed`/`completed`/`cancelled`) | 5       | `VALID_TRANSITIONS`              | none                                     | full lock outside `draft`/`sent`       | consistent                                             |
+| Issued Invoice (invoices)            | `String(30)` def `issued`  | English (`issued`/`overdue`/`paid`)                          | 3       | `VALID_TRANSITIONS`              | `markOverdueInvoices()` + auto paid_date | full lock in `paid`                    | **DRIFTED**: `issued`=warning in list, =info in detail |
+| Received Invoice (received_invoices) | **enum** def `unpaid`      | English (`unpaid`/`paid`)                                    | 2       | implicit (no revert)             | auto paid_date, month/year               | locks in `paid`                        | consistent (list only)                                 |
+
+## Intentional (KEEP) vs Accidental (FIX)
+
+**Domain-justified — keep:** different state counts per document (orders need 5, received invoices need 2); Offers' transition-free lifecycle (document it); the customer-order→project sync and invoice auto-overdue business rules; stricter edit-lock on terminal states.
+
+**Accidental — fix:**
+
+- Czech vs English status keys (customer-orders are the lone Czech holdout — legacy-PHP carryover).
+- String vs enum storage (orders/quotations/invoices loose `String`; issued_orders/received_invoices typed enums).
+- Divergent semantic color for the same status (`issued` = warning vs info).
+- Six duplicated, drifting `STATUS_LABELS`/`STATUS_COLORS` maps; Offers has none.
+- Duplicated draft-key constants (`boha_offer_draft` defined in two files).
+- **Half-wired issued-invoice draft** (banner reads a key that's never written; `clearDraft` is dead code) — a live user-facing bug.
+- Cross-record draft leakage (`boha_offer_draft` not record-scoped).
+- Auto-transition logic placed in three different homes (service vs scheduled fn vs route handler).
+- Arbitrary draft-banner visibility heuristics.
+
+## Recommendations
+
+- **Status keys → English** (4/5 already English; matches CLAUDE.md identifier convention). Rename customer-order DB values (`prijata`→`received`, `v_realizaci`→`in_progress`, `dokoncena`→`completed`, `stornovana`→`cancelled`) + the `ORDER_TO_PROJECT_STATUS` keys. **Needs DB migration + backfill.**
+- **Storage → Prisma enums** for invoices/orders/quotations (match the other two). **Migration**, mechanical; do in the same migration as the rename.
+- **One shared `src/admin/lib/documentStatus.ts`** exporting per-document `STATUS_LABELS` + `STATUS_COLORS` (Czech labels, MUI colors), consumed everywhere — kills all six duplicates, fixes the `issued` color drift in one place (→ `warning`), gives Offers a chip. Fold draft-key constants into a shared `DRAFT_KEYS`. **Frontend-only.**
+- **Drafts → uniform or removed; never half-wired.** Recommended: a reusable `useDocumentDraft(key, { recordId })` hook (record-scoped, debounced autosave, restore-on-init, unified banner) applied to all create/edit forms; finish the stubbed invoice banner. Acceptable cheaper alternative: delete drafts entirely. Either way, fix the half-wired invoice banner. **Frontend-only.**
+- **Transition placement → one home** (service layer, never the route). **Backend-only, no migration.**
+
+## Effort + risk
+
+- **Frontend-only (cheap, safe, do now):** shared `documentStatus.ts` (+ fix `issued` color drift, + Offers chip), fix the half-wired invoice draft, record-scoped `useDocumentDraft` hook + leakage guard + banner unification.
+- **Backend, no migration (low risk, opportunistic):** centralize auto-transition logic into services; document Offers' transition-free lifecycle.
+- **Backend + DB migration (higher risk, deferrable, do as ONE planned tested change):** Czech→English customer-order status rename (DB values + transition map + project-sync keys + frontend maps in lockstep, with `UPDATE` backfill); String→enum conversion for invoices/orders/quotations. **Not correctness blockers** (the String columns work today) — schedule deliberately.

docs/deployment-guide.md

@@ -1,385 +0,0 @@
-# Deployment Guide — boha-app-ts (Ubuntu Server)
-
-Migration from PHP boha-app to TypeScript boha-app-ts on the same Ubuntu server.
-Both apps share the same MySQL database. The PHP app stays running during migration.
-
----
-
-## Prerequisites
-
-- Ubuntu server with the PHP boha-app already running
-- nginx with SSL (Let's Encrypt) already configured
-- MySQL database already running with production data
-- NAS storage mounted (e.g., `/mnt/nas/02_PROJEKTY`)
-- SSH access to the server
-
----
-
-## Phase 1: Prepare on Dev Machine (Windows)
-
-### 1.1 Create Prisma migration baseline
-
-```bash
-cd D:\cortex\boha-app-ts
-mkdir -p prisma/migrations/0_init
-npx prisma migrate diff --from-empty --to-schema-datamodel prisma/schema.prisma --script > prisma/migrations/0_init/migration.sql
-npx prisma migrate resolve --applied 0_init
-git add prisma/migrations/
-git commit -m "chore: create Prisma migration baseline"
-```
-
-### 1.2 Build the application
-
-```bash
-npm run build
-```
-
-This creates:
-- `dist/` — compiled server (Node.js)
-- `dist-client/` — compiled frontend (static files)
-
-### 1.3 Generate new production secrets
-
-```bash
-openssl rand -hex 32
-# Save this as JWT_SECRET
-
-openssl rand -hex 32
-# Save this as TOTP_ENCRYPTION_KEY (only if you want a new key)
-```
-
-### 1.4 Test the production build locally (optional)
-
-```bash
-APP_ENV=production JWT_SECRET=<your-dev-key> TOTP_ENCRYPTION_KEY=<your-dev-key> DATABASE_URL=<your-dev-db> node dist/server.js
-```
-
-Verify it starts and responds at `http://localhost:3001/api/health`.
-
----
-
-## Phase 2: Prepare Ubuntu Server
-
-### 2.1 Install Node.js 22
-
-```bash
-curl -fsSL https://deb.nodesource.com/setup_22.x | sudo -E bash -
-sudo apt-get install -y nodejs
-node -v
-npm -v
-```
-
-### 2.2 Install PM2
-
-```bash
-sudo npm install -g pm2
-```
-
-### 2.3 Create application directory
-
-```bash
-sudo mkdir -p /var/www/boha-app-ts
-sudo chown $USER:$USER /var/www/boha-app-ts
-```
-
----
-
-## Phase 3: Transfer Files to Server
-
-### 3.1 Copy built files
-
-From your Windows machine (Git Bash or PowerShell with SCP):
-
-```bash
-scp -r dist/ dist-client/ package.json package-lock.json prisma/ scripts/ .env.example user@server:/var/www/boha-app-ts/
-```
-
-Or use rsync if available:
-
-```bash
-rsync -avz --exclude node_modules --exclude .env dist/ dist-client/ package.json package-lock.json prisma/ scripts/ .env.example user@server:/var/www/boha-app-ts/
-```
-
-### 3.2 Install production dependencies on server
-
-```bash
-ssh user@server
-cd /var/www/boha-app-ts
-npm install --production
-npx prisma generate
-```
-
----
-
-## Phase 4: Configure Environment
-
-### 4.1 Create production .env
-
-```bash
-cd /var/www/boha-app-ts
-cp .env.example .env
-nano .env
-```
-
-Fill in:
-
-```env
-# Database — same as the PHP app
-DATABASE_URL=mysql://user:password@localhost:3306/your_db_name
-
-# Server
-PORT=3001
-HOST=127.0.0.1
-APP_ENV=production
-
-# Auth — use the NEW secrets generated in step 1.3
-JWT_SECRET=<paste-new-jwt-secret>
-ACCESS_TOKEN_EXPIRY=900
-REFRESH_TOKEN_SESSION_EXPIRY=3600
-REFRESH_TOKEN_REMEMBER_EXPIRY=2592000
-
-# TOTP — use SAME key as PHP app (unless you want to re-encrypt)
-TOTP_ENCRYPTION_KEY=<same-key-as-php-app>
-
-# NAS — Linux mount point
-NAS_PATH=/mnt/nas/02_PROJEKTY
-MAX_UPLOAD_SIZE=52428800
-
-# Email
-CONTACT_EMAIL_TO=manager@boha-automation.cz
-CONTACT_EMAIL_FROM=web@boha-automation.cz
-SMTP_FROM=noreply@boha-automation.cz
-
-# CORS — your production domain(s)
-CORS_ORIGINS=https://app.boha-automation.cz,https://www.boha-automation.cz
-```
-
-**Important decisions:**
-
-| Setting | Recommendation |
-|---------|---------------|
-| `JWT_SECRET` | **New key.** All PHP sessions will be invalid — users re-login. This is expected. |
-| `TOTP_ENCRYPTION_KEY` | **Same key as PHP app.** Avoids re-encrypting all TOTP secrets. |
-| `DATABASE_URL` | **Same database as PHP app.** Both apps share it. |
-| `NAS_PATH` | **Linux mount point** instead of Windows drive letter. |
-
----
-
-## Phase 5: Database Setup
-
-### 5.1 Mark Prisma baseline as applied
-
-```bash
-cd /var/www/boha-app-ts
-npx prisma migrate resolve --applied 0_init
-```
-
-This tells Prisma the database already has all tables. No SQL is executed.
-
-### 5.2 Verify database connection
-
-```bash
-npx prisma db pull --print | head -20
-```
-
-Should show your existing tables.
-
----
-
-## Phase 6: TOTP Key Rotation (only if using new encryption key)
-
-**Skip this section if you're using the same `TOTP_ENCRYPTION_KEY` as the PHP app.**
-
-If you generated a new encryption key:
-
-```bash
-cd /var/www/boha-app-ts
-
-# Dry run — verify all secrets can be decrypted and re-encrypted
-npx tsx scripts/rotate-totp-key.ts <old-key> <new-key> --dry-run
-
-# If all [OK], run for real
-npx tsx scripts/rotate-totp-key.ts <old-key> <new-key>
-```
-
-After this, the PHP app's TOTP verification will break (secrets are now encrypted with the new key). Only do this when you're ready to cut over.
-
----
-
-## Phase 7: Start Application with PM2
-
-### 7.1 Create PM2 config
-
-```bash
-cd /var/www/boha-app-ts
-cat > ecosystem.config.js << 'EOF'
-module.exports = {
-  apps: [{
-    name: 'boha-app-ts',
-    script: 'dist/server.js',
-    cwd: '/var/www/boha-app-ts',
-    instances: 1,
-    env: {
-      NODE_ENV: 'production',
-    },
-  }]
-};
-EOF
-```
-
-### 7.2 Start the app
-
-```bash
-pm2 start ecosystem.config.js
-pm2 save
-pm2 startup
-# Follow the printed command to enable auto-start on boot
-```
-
-### 7.3 Verify
-
-```bash
-pm2 status
-pm2 logs boha-app-ts --lines 20
-curl http://localhost:3001/api/health
-```
-
-Expected: `{"status":"ok","timestamp":"..."}`
-
----
-
-## Phase 8: Nginx Configuration
-
-### 8.1 Create nginx config
-
-```bash
-sudo nano /etc/nginx/sites-available/boha-app-ts
-```
-
-Paste:
-
-```nginx
-server {
-    listen 443 ssl http2;
-    server_name app.boha-automation.cz;
-
-    ssl_certificate /etc/letsencrypt/live/app.boha-automation.cz/fullchain.pem;
-    ssl_certificate_key /etc/letsencrypt/live/app.boha-automation.cz/privkey.pem;
-
-    client_max_body_size 55M;
-
-    location / {
-        proxy_pass http://127.0.0.1:3001;
-        proxy_http_version 1.1;
-        proxy_set_header Upgrade $http_upgrade;
-        proxy_set_header Connection 'upgrade';
-        proxy_set_header Host $host;
-        proxy_set_header X-Real-IP $remote_addr;
-        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-        proxy_set_header X-Forwarded-Proto $scheme;
-        proxy_cache_bypass $http_upgrade;
-    }
-}
-
-server {
-    listen 80;
-    server_name app.boha-automation.cz;
-    return 301 https://$host$request_uri;
-}
-```
-
-Adjust `server_name` and SSL paths to match your setup.
-
-### 8.2 Enable and reload
-
-```bash
-sudo ln -s /etc/nginx/sites-available/boha-app-ts /etc/nginx/sites-enabled/
-sudo nginx -t
-sudo systemctl reload nginx
-```
-
----
-
-## Phase 9: Testing
-
-### 9.1 Verify in browser
-
-Open `https://app.boha-automation.cz` and test:
-
-- [ ] Login page loads
-- [ ] Login works (users will need to re-login due to new JWT_SECRET)
-- [ ] TOTP verification works (if using same encryption key)
-- [ ] Dashboard loads with data
-- [ ] Offers — list, create, edit, PDF export
-- [ ] Orders — list, create from offer, status transitions
-- [ ] Invoices — list, create, PDF with QR code
-- [ ] Projects — list, create, file manager (upload/download)
-- [ ] Attendance — clock in/out, admin view, print
-- [ ] Trips — list, history
-- [ ] Settings — company settings, users, roles
-
-### 9.2 Check logs for errors
-
-```bash
-pm2 logs boha-app-ts --lines 50
-```
-
----
-
-## Phase 10: Cutover Strategy
-
-Both apps run simultaneously on the same database. Recommended approach:
-
-1. **Week 1:** Run both apps. Use the TS app for daily work. Fall back to PHP if issues arise.
-2. **Week 2:** If stable, redirect the main domain to the TS app.
-3. **Week 3:** Stop the PHP app.
-
-To redirect the PHP domain to the TS app, update the nginx config for the PHP domain to proxy to port 3001 instead.
-
----
-
-## Future Updates
-
-When you push code changes:
-
-```bash
-# On dev machine
-npm run build
-git push
-
-# On server
-cd /var/www/boha-app-ts
-git pull
-npm install --production
-npx prisma generate
-npx prisma migrate deploy    # runs any new migrations
-pm2 restart boha-app-ts
-```
-
----
-
-## Troubleshooting
-
-| Problem | Solution |
-|---------|----------|
-| `EADDRINUSE: port 3001` | `pm2 stop boha-app-ts` then `pm2 start` |
-| Prisma connection error | Check `DATABASE_URL` in `.env` |
-| TOTP verification fails | Verify `TOTP_ENCRYPTION_KEY` matches the key used to encrypt secrets |
-| NAS files not accessible | Check mount: `ls /mnt/nas/02_PROJEKTY`, verify permissions |
-| 502 Bad Gateway | App not running: `pm2 status`, check logs: `pm2 logs` |
-| CSS/JS not loading | Verify `dist-client/` was copied, check `APP_ENV=production` |
-| CORS errors | Check `CORS_ORIGINS` in `.env` matches your domain exactly |
-
----
-
-## Quick Reference
-
-| Command | Purpose |
-|---------|---------|
-| `pm2 start ecosystem.config.js` | Start the app |
-| `pm2 restart boha-app-ts` | Restart after update |
-| `pm2 stop boha-app-ts` | Stop the app |
-| `pm2 logs boha-app-ts` | View logs |
-| `pm2 monit` | Live monitoring |
-| `npx prisma migrate deploy` | Apply database migrations |
-| `npx prisma studio` | Database GUI (dev only) |

docs/release.md

@@ -0,0 +1,96 @@
+# Release & deployment runbook — boha-app-ts
+
+Referenced from CLAUDE.md. **Never deploy to production or restart services
+without explicit user confirmation.**
+
+## Standard release
+
+1. Run the full gates locally: `npx vitest run` (all green), `npx tsc -b --noEmit`,
+   `npm run lint` (0 errors).
+2. Bump version: `npm version X.Y.Z --no-git-tag-version` (the user picks the number).
+3. `npm run build`
+4. Commit and tag: `git tag -a vX.Y.Z`
+5. Push to Gitea: `git push origin master && git push origin vX.Y.Z`
+6. Create tarball:
+
+   ```bash
+   tar -czf app-ts-X.Y.Z.tar.gz dist dist-client prisma prisma.config.ts package.json package-lock.json scripts
+   ```
+
+   ⚠️ `prisma.config.ts` is REQUIRED — Prisma 7 keeps the datasource URL there;
+   without it, `prisma generate`/`migrate deploy` on prod have no datasource.
+
+7. Deploy via SSH to production (`boha_admin@192.168.50.100`, path `/var/www/app-ts`):
+
+   ```bash
+   scp app-ts-X.Y.Z.tar.gz boha_admin@192.168.50.100:/tmp/
+   ssh boha_admin@192.168.50.100
+   cd /var/www/app-ts
+   rm -rf dist dist-client prisma prisma.config.ts scripts package.json package-lock.json
+   tar -xzf /tmp/app-ts-X.Y.Z.tar.gz
+   npm install --omit=dev
+   npx prisma generate        # MANDATORY — see below
+   npx prisma migrate deploy
+   pm2 restart app-ts --update-env
+   ```
+
+   **`npx prisma generate` is mandatory.** `npm install` skips client
+   regeneration when dependencies didn't change, leaving a stale client that
+   still selects dropped/renamed columns → P2022 500s in prod (this caused
+   the v2.4.0 incident: every issued-orders query failed until generate ran).
+
+8. Verify: `pm2 list` (status online, correct version, restart counter not
+   climbing), `npx prisma migrate status` ("up to date"),
+   `curl -s -o /dev/null -w '%{http_code}' http://127.0.0.1:3001/` → 200,
+   and grep logs for errors from the CURRENT pid only (the out log keeps old
+   errors from prior pids).
+9. Clean up tarballs locally and in `/tmp/` on the server.
+
+Risky releases (framework jumps, FK/constraint-altering migrations) get a
+read-only pre-flight first: `prisma migrate status` on prod, verify FK
+constraint names the migration DROPs, check no data violates new
+UNIQUE/RESTRICT constraints — and confirm with the user before the
+irreversible steps. The prod DB is backed up by a cron job (no manual
+mysqldump needed).
+
+## Hotfixing a migration added after the tarball was built
+
+A migration folder created after the release tarball shipped is not on prod,
+so `prisma migrate deploy` reports "No pending migrations". Ship just the
+migration folder (still tracked in git — this is NOT raw SQL on prod):
+
+```bash
+# Local
+cd prisma/migrations
+tar -czf /tmp/<name>_migration.tar.gz <timestamp>_<name>/
+scp /tmp/<name>_migration.tar.gz boha_admin@192.168.50.100:/tmp/
+
+# On prod
+ssh boha_admin@192.168.50.100
+cd /var/www/app-ts/prisma/migrations
+tar -xzf /tmp/<name>_migration.tar.gz
+cd /var/www/app-ts
+npx prisma migrate deploy
+pm2 restart app-ts --update-env
+```
+
+## Drift check / preview before deploy
+
+```bash
+# Preview what SQL would bring the dev DB (per prisma.config.ts) to the local schema
+npx prisma migrate diff --from-config-datasource --to-schema prisma/schema.prisma --script
+```
+
+Empty output = no diff. (Prisma 7 removed `--from-url`; diffs against another
+DB need its URL in a config/env override.) If drift includes DROPs,
+investigate before touching production.
+
+## Baselining a database that has no migrations
+
+If a database was synced without migration history (no `_prisma_migrations`
+table): create the initial migration locally, copy `prisma/migrations` to the
+server, then mark it applied without running SQL:
+
+```bash
+npx prisma migrate resolve --applied <migration_name>
+```

docs/superpowers/plans/2026-06-03-deferred-high-issues.md

@@ -0,0 +1,124 @@
+# Deferred HIGH issues — performance & UX sprint
+
+**Created:** 2026-06-03
+**Source audit:** Parallel 5-agent production risk audit (2026-06-03)
+**Context:** All 8 CRITICAL and 3 of 8 HIGH issues were fixed in the same session.
+The 5 items below were intentionally deferred — they are not data-integrity or
+auth risks, but they are real production pain that should be addressed in a
+dedicated performance / UX sprint before the user base notices.
+
+---
+
+## #9 — N+1 queries in warehouse list/detail/report
+
+**Files:**
+
+- `src/services/warehouse.service.ts:184-199` (getBelowMinimumItems)
+- `src/services/warehouse.service.ts:629-646` (somewhere in items list)
+- `src/services/warehouse.service.ts:681-683`
+- `src/services/warehouse.service.ts:2182-2203` (report)
+
+**Pattern:** `items.map(async (i) => { const stock = await getStock(i.id); const available = await getAvailable(i.id); const value = await getValue(i.id); })` — fires N+1 round-trips per item. For a list of 50 items, that's 150 sequential queries.
+
+**Production impact:** Slow page loads (1-3s on 50 items, scales linearly). Users already complain about the items page; this is the root cause for the warehouse report being the slowest page in the app.
+
+**Fix sketch:**
+
+- Replace the `for` loop with a single grouped query: `prisma.sklad_batches.groupBy({ by: ['item_id'], _sum: { quantity: true }, where: { item_id: { in: itemIds } } })` for stocks, similar aggregates for reservations.
+- Map the grouped results back to items in JS. One query instead of N.
+- For the report view, do the same — group all batches and reservations by item_id in a single round-trip, then join with items in memory.
+- Estimated effort: M (4-6 hours including testing).
+
+---
+
+## #10 — Missing FK indexes on hot warehouse tables
+
+**File:** `prisma/schema.prisma` (no `@@index` directives on the new warehouse tables)
+
+**Missing indexes (verify against `prisma/schema.prisma` and add to a new migration):**
+
+- `sklad_receipt_lines.item_id` — every `confirmReceipt` reads/writes this
+- `sklad_issue_lines.batch_id` — every `confirmIssue` reads/writes this
+- `sklad_issue_lines.item_id`
+- `sklad_reservations.project_id` — reservation list per project
+- `sklad_reservations.item_id`
+- `sklad_item_locations.item_id`
+- `sklad_item_locations.location_id`
+- `sklad_batches.receipt_line_id` (if nullable FK)
+- `sklad_inventory_lines.item_id`
+- `sklad_inventory_lines.session_id`
+
+**Production impact:** MySQL currently does table scans for these joins. With even 10k batch rows, the receipts/issues/reservations pages will start to crawl. On production data (likely already 50k+ batches), this is a real performance cliff.
+
+**Fix sketch:**
+
+- Add `@@index([item_id])`, `@@index([batch_id])` etc. to each model in `prisma/schema.prisma`.
+- Run `npx prisma migrate dev --name warehouse_fk_indexes` (after asking user to stop dev server per CLAUDE.md).
+- Run `npx prisma generate`.
+- Verify with `EXPLAIN` on the slow queries after deploy.
+- Estimated effort: S (1-2 hours).
+
+**CLAUDE.md note:** Before running `prisma migrate dev`, the user must stop the dev server.
+
+---
+
+## #13 — Pagination does not auto-adjust after delete
+
+**Files:** All list pages (Invoices, Offers, Projects, Orders, WarehouseXxx)
+
+**Pattern:** User is on page 5 (e.g. 10 items per page, 47 total, pages 1-5). They delete the last item on page 5. Total becomes 46, but the page param is still 5. The list endpoint returns 0 results, the user sees an empty table, and the "next" button is disabled but there's no automatic jump back to page 4.
+
+**Production impact:** Confusing UX. Users have to manually click "previous" or reset filters. Doesn't cause data loss but is a small papercut that erodes trust.
+
+**Fix sketch:**
+
+- In each list page's `useQuery` error/empty handler, detect `pagination.total === 0 && page > 1` and call `setPage(page - 1)`.
+- Or more cleanly: have the API include `pagination.total_pages` and the frontend clamp `page` to `min(page, total_pages)` after each refetch.
+- Estimated effort: S (2-3 hours; touches ~10-12 pages).
+
+---
+
+## #14 — Offer lock lifecycle has multiple silent failures
+
+**File:** `src/admin/pages/OfferDetail.tsx:472-516`
+
+**Pattern:** Lock acquire, heartbeat (interval), and unlock all use `.catch(() => {})`. If any of them silently fails, the user thinks they have the lock but actually don't — or worse, the lock is held by a tab that's already closed because the unload handler also swallowed the error.
+
+**Production impact:** Two users editing the same offer can both see "You have the lock" and clobber each other's changes. Data loss in a real, low-probability but high-impact scenario.
+
+**Fix sketch:**
+
+- Replace `.catch(() => {})` with `.catch((err) => console.error("Offer lock error:", err))` at minimum.
+- Better: surface lock acquisition failures via a toast (`alert.error("Nepodařilo se získat zámek, stránka bude pouze pro čtení.")`).
+- For the unlock on unmount: best-effort `navigator.sendBeacon` or a synchronous fallback so the lock is released even if the page is closing.
+- Estimated effort: S (1-2 hours).
+
+---
+
+## #11 (audit item, not a real bug) — TOTP replay counter rewind
+
+**File investigated:** `src/utils/totp.ts:5-30`, `src/routes/admin/auth.ts:165-184`
+
+**Status:** False positive. The audit suggested `verifyResult.counter` could be lower than the actual step used. After reading the implementation:
+
+```ts
+const delta = totp.validate({ token: code, window: 1 });
+// ...
+const counterDelta = Math.min(delta, 0); // -1 or 0, never +1
+const counter = currentCounter + counterDelta;
+```
+
+`Math.min(delta, 0)` clamps to ≤ 0, so `counter` is always the **current** step or **one step in the past** — never a future step. The `counter <= lastCounter` check in the route is correct and complete. No fix needed.
+
+If anyone revisits this in the future, this analysis is the basis for closing the ticket.
+
+---
+
+## Suggested order for the next sprint
+
+1. **#10 (indexes)** — cheap, high impact, addresses a growing data cliff. Do first.
+2. **#9 (N+1)** — bigger effort but the same root cause family. Tackle after indexes.
+3. **#14 (offer lock)** — small but prevents data loss; fits in a single PR.
+4. **#13 (pagination)** — UX polish; do last, batch with other UX cleanup.
+
+Estimated total: 1-2 days of focused work.

docs/superpowers/plans/2026-06-08-odin-conversations.md

@@ -0,0 +1,792 @@
+# Odin Multi-Conversation Chat — Implementation Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
+
+**Goal:** Turn the single-thread Odin assistant into a multi-conversation chat (top-tabs, rename/delete, auto-title) on the `/odin` page.
+
+**Architecture:** New `ai_conversations` table; `ai_chat_messages` gains `conversation_id` (FK, cascade). Conversation-scoped service + routes replace the single `/history` endpoints. A new `OdinChat` component (+ focused sub-components) replaces `DashAssistant`, keeping all proven chat/extract/save logic but scoped to the active conversation.
+
+**Tech Stack:** Fastify 5, Prisma 6 (MySQL), Zod 4, React 18 + MUI v7, TanStack Query, Vitest (real DB).
+
+**Spec:** `docs/superpowers/specs/2026-06-08-odin-conversations-design.md`.
+
+---
+
+## File map
+
+| File                                                                  | Responsibility                                                                                                 |
+| --------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------- |
+| `prisma/schema.prisma`                                                | + `ai_conversations`; `ai_chat_messages.conversation_id` + relation + index swap                               |
+| `prisma/migrations/20260608140000_add_ai_conversations/migration.sql` | create table, add column, backfill, enforce FK                                                                 |
+| `src/services/ai.service.ts`                                          | replace `getChatHistory/appendChatMessages/clearChatHistory` with conversation-scoped fns                      |
+| `src/schemas/ai.schema.ts`                                            | + `AiCreateConversationSchema`, `AiRenameConversationSchema`; keep `AiHistoryAppendSchema` (reused for append) |
+| `src/routes/admin/ai.ts`                                              | replace `/history` routes with `/conversations*` routes                                                        |
+| `src/__tests__/ai.test.ts`                                            | replace history tests with conversation tests                                                                  |
+| `src/admin/lib/queries/ai.ts`                                         | + conversation query options/types; remove `aiHistoryOptions`                                                  |
+| `src/admin/components/odin/OdinTabs.tsx`                              | conversation tabs + new + rename/delete menu                                                                   |
+| `src/admin/components/odin/OdinThread.tsx`                            | message list + avatar + empty/busy states                                                                      |
+| `src/admin/components/odin/InvoiceReviewCard.tsx`                     | editable extracted-invoice card                                                                                |
+| `src/admin/components/odin/OdinComposer.tsx`                          | staged chips + attach + input + send                                                                           |
+| `src/admin/components/odin/OdinChat.tsx`                              | orchestrator: queries, state, the ported logic                                                                 |
+| `src/admin/pages/Odin.tsx`                                            | render `OdinChat` (was `DashAssistant`)                                                                        |
+| `src/admin/components/dashboard/DashAssistant.tsx`                    | **deleted**                                                                                                    |
+
+**Controller note (migration):** Tasks that touch the DB require the dev server stopped. After Task 1's files are written, the **controller** runs: ask user to stop dev server → `npx prisma generate` → `npx prisma migrate deploy` (applies to dev `app` DB) → resume. Backend tsc is red between Task 1 and Task 2 (data model changes before the service is updated) — that is expected; Task 2 restores green.
+
+---
+
+## Task 1: Data model + migration
+
+**Files:**
+
+- Modify: `prisma/schema.prisma`
+- Create: `prisma/migrations/20260608140000_add_ai_conversations/migration.sql`
+
+- [ ] **Step 1: Edit `prisma/schema.prisma`** — replace the existing `ai_chat_messages` model and add `ai_conversations` above it:
+
+```prisma
+model ai_conversations {
+  id         Int                @id @default(autoincrement())
+  user_id    Int
+  title      String             @db.VarChar(255)
+  created_at DateTime           @default(now()) @db.Timestamp(0)
+  updated_at DateTime           @default(now()) @updatedAt @db.Timestamp(0)
+  messages   ai_chat_messages[]
+
+  @@index([user_id, id], map: "idx_ai_conv_user")
+}
+
+model ai_chat_messages {
+  id              Int              @id @default(autoincrement())
+  user_id         Int
+  conversation_id Int
+  role            String           @db.VarChar(20)
+  content         String           @db.Text
+  created_at      DateTime         @default(now()) @db.Timestamp(0)
+  conversation    ai_conversations @relation(fields: [conversation_id], references: [id], onDelete: Cascade)
+
+  @@index([conversation_id, id], map: "idx_ai_chat_conv")
+}
+```
+
+- [ ] **Step 2: Write the migration SQL** at `prisma/migrations/20260608140000_add_ai_conversations/migration.sql`:
+
+```sql
+-- Multi-conversation Odin: conversations table + conversation_id on messages.
+
+CREATE TABLE `ai_conversations` (
+  `id` INTEGER NOT NULL AUTO_INCREMENT,
+  `user_id` INTEGER NOT NULL,
+  `title` VARCHAR(255) NOT NULL,
+  `created_at` TIMESTAMP(0) NOT NULL DEFAULT CURRENT_TIMESTAMP(0),
+  `updated_at` TIMESTAMP(0) NOT NULL DEFAULT CURRENT_TIMESTAMP(0),
+  PRIMARY KEY (`id`),
+  INDEX `idx_ai_conv_user` (`user_id`, `id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+ALTER TABLE `ai_chat_messages`
+  ADD COLUMN `conversation_id` INTEGER NULL AFTER `user_id`;
+
+-- Backfill: one conversation per user who has messages ("keep as first conversation").
+INSERT INTO `ai_conversations` (`user_id`, `title`, `created_at`, `updated_at`)
+SELECT `user_id`, 'Konverzace', NOW(), NOW()
+FROM `ai_chat_messages`
+GROUP BY `user_id`;
+
+UPDATE `ai_chat_messages` m
+JOIN `ai_conversations` c ON c.`user_id` = m.`user_id`
+SET m.`conversation_id` = c.`id`;
+
+-- Enforce: drop old per-user index, NOT NULL, FK (cascade), per-conversation index.
+ALTER TABLE `ai_chat_messages`
+  DROP INDEX `idx_ai_chat_user`,
+  MODIFY `conversation_id` INTEGER NOT NULL,
+  ADD CONSTRAINT `fk_ai_chat_conv` FOREIGN KEY (`conversation_id`)
+    REFERENCES `ai_conversations`(`id`) ON DELETE CASCADE,
+  ADD INDEX `idx_ai_chat_conv` (`conversation_id`, `id`);
+```
+
+- [ ] **Step 3: Controller applies the migration** (not the implementer):
+  - Ask user to stop the dev server (Prisma engine DLL is locked on Windows otherwise).
+  - `npx prisma generate` — expect "Generated Prisma Client".
+  - `npx prisma migrate deploy` — expect "Applying migration `20260608140000_add_ai_conversations`" → "successfully applied".
+
+- [ ] **Step 4: Commit**
+
+```bash
+git add prisma/schema.prisma prisma/migrations/20260608140000_add_ai_conversations
+git commit -m "feat(odin): ai_conversations table + conversation_id on messages"
+```
+
+---
+
+## Task 2: Backend — conversation service, schemas, routes
+
+**Files:**
+
+- Modify: `src/services/ai.service.ts`
+- Modify: `src/schemas/ai.schema.ts`
+- Modify: `src/routes/admin/ai.ts`
+
+- [ ] **Step 1: Replace the chat-history block in `ai.service.ts`.** Delete `getChatHistory`, `appendChatMessages`, `clearChatHistory` and the `HISTORY_LIMIT` const, and put this in their place (keep the `StoredChatMessage` interface):
+
+```ts
+// ── Conversations (server-side, per user) ─────────────────────────────────
+export interface StoredChatMessage {
+  role: string;
+  content: string;
+  created_at: Date;
+}
+export interface ConversationSummary {
+  id: number;
+  title: string;
+  updated_at: Date;
+}
+
+const DEFAULT_CONVERSATION_TITLE = "Nová konverzace";
+const MESSAGE_LIMIT = 200; // cap a single thread read
+
+export async function listConversations(
+  userId: number,
+): Promise<ConversationSummary[]> {
+  return prisma.ai_conversations.findMany({
+    where: { user_id: userId },
+    orderBy: { id: "asc" }, // stable tab order
+    select: { id: true, title: true, updated_at: true },
+  });
+}
+
+export async function createConversation(
+  userId: number,
+  title?: string,
+): Promise<ConversationSummary> {
+  return prisma.ai_conversations.create({
+    data: {
+      user_id: userId,
+      title: title?.trim() || DEFAULT_CONVERSATION_TITLE,
+    },
+    select: { id: true, title: true, updated_at: true },
+  });
+}
+
+/** Ownership-checked fetch; null when not found / not owned. */
+async function ownConversation(userId: number, convId: number) {
+  return prisma.ai_conversations.findFirst({
+    where: { id: convId, user_id: userId },
+    select: { id: true, title: true },
+  });
+}
+
+export async function getConversationMessages(
+  userId: number,
+  convId: number,
+): Promise<{ data: StoredChatMessage[] } | { error: string; status: number }> {
+  if (!(await ownConversation(userId, convId)))
+    return { error: "Konverzace nenalezena", status: 404 };
+  const rows = await prisma.ai_chat_messages.findMany({
+    where: { conversation_id: convId },
+    orderBy: { id: "desc" },
+    take: MESSAGE_LIMIT,
+    select: { role: true, content: true, created_at: true },
+  });
+  return { data: rows.reverse() };
+}
+
+export async function appendConversationMessages(
+  userId: number,
+  convId: number,
+  messages: { role: string; content: string }[],
+): Promise<{ data: { ok: true } } | { error: string; status: number }> {
+  const conv = await ownConversation(userId, convId);
+  if (!conv) return { error: "Konverzace nenalezena", status: 404 };
+  if (messages.length > 0) {
+    await prisma.ai_chat_messages.createMany({
+      data: messages.map((m) => ({
+        user_id: userId,
+        conversation_id: convId,
+        role: m.role,
+        content: m.content,
+      })),
+    });
+  }
+  // Auto-title from the first user message (only while still the default), and
+  // always bump updated_at.
+  const firstUser = messages.find((m) => m.role === "user");
+  const data: { updated_at: Date; title?: string } = { updated_at: new Date() };
+  if (conv.title === DEFAULT_CONVERSATION_TITLE && firstUser) {
+    const t = firstUser.content.replace(/\s+/g, " ").trim().slice(0, 60);
+    if (t) data.title = t;
+  }
+  await prisma.ai_conversations.update({ where: { id: convId }, data });
+  return { data: { ok: true } };
+}
+
+export async function renameConversation(
+  userId: number,
+  convId: number,
+  title: string,
+): Promise<{ data: ConversationSummary } | { error: string; status: number }> {
+  if (!(await ownConversation(userId, convId)))
+    return { error: "Konverzace nenalezena", status: 404 };
+  const updated = await prisma.ai_conversations.update({
+    where: { id: convId },
+    data: { title: title.trim() || DEFAULT_CONVERSATION_TITLE },
+    select: { id: true, title: true, updated_at: true },
+  });
+  return { data: updated };
+}
+
+export async function deleteConversation(
+  userId: number,
+  convId: number,
+): Promise<{ data: { ok: true } } | { error: string; status: number }> {
+  if (!(await ownConversation(userId, convId)))
+    return { error: "Konverzace nenalezena", status: 404 };
+  await prisma.ai_conversations.delete({ where: { id: convId } }); // cascade
+  return { data: { ok: true } };
+}
+```
+
+- [ ] **Step 2: Schemas** — in `src/schemas/ai.schema.ts`, keep `AiHistoryAppendSchema` (reused for append) and add:
+
+```ts
+export const AiCreateConversationSchema = z.object({
+  title: z.string().max(255).optional(),
+});
+
+export const AiRenameConversationSchema = z.object({
+  title: z.string().min(1, "Název je povinný").max(255),
+});
+```
+
+- [ ] **Step 3: Routes** — in `src/routes/admin/ai.ts`: update imports (drop `getChatHistory/appendChatMessages/clearChatHistory`, add the new fns; add `AiCreateConversationSchema, AiRenameConversationSchema`; import `parseId` from `"../../schemas/common"`). Delete the three `/history` route blocks and append these (all `requirePermission("ai.use")`):
+
+```ts
+// GET /conversations — this user's conversations (stable order)
+app.get(
+  "/conversations",
+  { preHandler: requirePermission("ai.use") },
+  async (request: FastifyRequest, reply: FastifyReply) => {
+    const conversations = await listConversations(request.authData!.userId);
+    return success(reply, { conversations });
+  },
+);
+
+// POST /conversations — create
+app.post(
+  "/conversations",
+  { preHandler: requirePermission("ai.use") },
+  async (request: FastifyRequest, reply: FastifyReply) => {
+    const body = parseBody(AiCreateConversationSchema, request.body);
+    if ("error" in body) return error(reply, body.error, 400);
+    const conversation = await createConversation(
+      request.authData!.userId,
+      body.data.title,
+    );
+    return success(reply, { conversation });
+  },
+);
+
+// GET /conversations/:id/messages
+app.get(
+  "/conversations/:id/messages",
+  { preHandler: requirePermission("ai.use") },
+  async (request: FastifyRequest, reply: FastifyReply) => {
+    const id = parseId((request.params as { id: string }).id, reply);
+    if (id === null) return;
+    const result = await getConversationMessages(request.authData!.userId, id);
+    if ("error" in result) return error(reply, result.error, result.status);
+    return success(reply, { messages: result.data });
+  },
+);
+
+// POST /conversations/:id/messages — append turns
+app.post(
+  "/conversations/:id/messages",
+  { preHandler: requirePermission("ai.use") },
+  async (request: FastifyRequest, reply: FastifyReply) => {
+    const id = parseId((request.params as { id: string }).id, reply);
+    if (id === null) return;
+    const body = parseBody(AiHistoryAppendSchema, request.body);
+    if ("error" in body) return error(reply, body.error, 400);
+    const result = await appendConversationMessages(
+      request.authData!.userId,
+      id,
+      body.data.messages,
+    );
+    if ("error" in result) return error(reply, result.error, result.status);
+    return success(reply, result.data);
+  },
+);
+
+// PATCH /conversations/:id — rename
+app.patch(
+  "/conversations/:id",
+  { preHandler: requirePermission("ai.use") },
+  async (request: FastifyRequest, reply: FastifyReply) => {
+    const id = parseId((request.params as { id: string }).id, reply);
+    if (id === null) return;
+    const body = parseBody(AiRenameConversationSchema, request.body);
+    if ("error" in body) return error(reply, body.error, 400);
+    const result = await renameConversation(
+      request.authData!.userId,
+      id,
+      body.data.title,
+    );
+    if ("error" in result) return error(reply, result.error, result.status);
+    return success(reply, { conversation: result.data });
+  },
+);
+
+// DELETE /conversations/:id
+app.delete(
+  "/conversations/:id",
+  { preHandler: requirePermission("ai.use") },
+  async (request: FastifyRequest, reply: FastifyReply) => {
+    const id = parseId((request.params as { id: string }).id, reply);
+    if (id === null) return;
+    const result = await deleteConversation(request.authData!.userId, id);
+    if ("error" in result) return error(reply, result.error, result.status);
+    return success(reply, result.data);
+  },
+);
+```
+
+- [ ] **Step 4: Gate**
+
+Run: `npx tsc -b --noEmit` — expect exit 0. Run: `npm run build` — expect success.
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add src/services/ai.service.ts src/schemas/ai.schema.ts src/routes/admin/ai.ts
+git commit -m "feat(odin): conversation-scoped service + routes (replace /history)"
+```
+
+---
+
+## Task 3: Backend tests
+
+**Files:**
+
+- Modify: `src/__tests__/ai.test.ts`
+
+- [ ] **Step 1: Replace the imports + cleanup markers.** Swap the history-fn imports for the conversation fns, and update the top-of-file constants/cleanup:
+
+```ts
+import {
+  computeCostUsd,
+  recordUsage,
+  getMonthSpendUsd,
+  getBudgetUsd,
+  assertBudgetAvailable,
+  isConfigured,
+  listConversations,
+  createConversation,
+  getConversationMessages,
+  appendConversationMessages,
+  renameConversation,
+  deleteConversation,
+} from "../services/ai.service";
+
+const KIND = "test_ai";
+const CONV_UID_A = 999999991; // synthetic, FK-free owner ids
+const CONV_UID_B = 999999992;
+const HIST_MARKER = "「test-conv」"; // marks HTTP-test conversations on real users
+```
+
+Update the top-level cleanup (`afterAll` and the conversation `beforeEach`) to delete by these. Deleting a conversation cascades its messages:
+
+```ts
+afterAll(async () => {
+  await prisma.ai_usage.deleteMany({ where: { kind: KIND } });
+  await prisma.ai_conversations.deleteMany({
+    where: { user_id: { in: [CONV_UID_A, CONV_UID_B] } },
+  });
+  await prisma.ai_conversations.deleteMany({
+    where: { title: { contains: HIST_MARKER } },
+  });
+});
+```
+
+- [ ] **Step 2: Replace the `describe("ai.service chat history", …)` block** with conversation service tests:
+
+```ts
+describe("ai.service conversations", () => {
+  beforeEach(async () => {
+    await prisma.ai_conversations.deleteMany({
+      where: { user_id: { in: [CONV_UID_A, CONV_UID_B] } },
+    });
+  });
+
+  it("creates, lists, appends (auto-title), and reads oldest→newest", async () => {
+    const conv = await createConversation(CONV_UID_A);
+    expect(conv.title).toBe("Nová konverzace");
+    await appendConversationMessages(CONV_UID_A, conv.id, [
+      { role: "user", content: "Kolik je hodin v Praze?" },
+      { role: "assistant", content: "Nevím, ale…" },
+    ]);
+    const list = await listConversations(CONV_UID_A);
+    expect(list).toHaveLength(1);
+    expect(list[0].title).toBe("Kolik je hodin v Praze?"); // auto-titled
+    const msgs = await getConversationMessages(CONV_UID_A, conv.id);
+    expect("data" in msgs && msgs.data.map((m) => m.content)).toEqual([
+      "Kolik je hodin v Praze?",
+      "Nevím, ale…",
+    ]);
+  });
+
+  it("does not overwrite a renamed title on later appends", async () => {
+    const conv = await createConversation(CONV_UID_A);
+    await renameConversation(CONV_UID_A, conv.id, "Moje téma");
+    await appendConversationMessages(CONV_UID_A, conv.id, [
+      { role: "user", content: "tohle by nemělo přepsat název" },
+    ]);
+    const list = await listConversations(CONV_UID_A);
+    expect(list[0].title).toBe("Moje téma");
+  });
+
+  it("isolates conversations per user (404 across owners)", async () => {
+    const a = await createConversation(CONV_UID_A);
+    expect(await listConversations(CONV_UID_B)).toHaveLength(0);
+    const read = await getConversationMessages(CONV_UID_B, a.id);
+    expect("error" in read && read.status).toBe(404);
+    const ren = await renameConversation(CONV_UID_B, a.id, "hack");
+    expect("error" in ren && ren.status).toBe(404);
+    const del = await deleteConversation(CONV_UID_B, a.id);
+    expect("error" in del && del.status).toBe(404);
+  });
+
+  it("cascade-deletes messages with the conversation", async () => {
+    const conv = await createConversation(CONV_UID_A);
+    await appendConversationMessages(CONV_UID_A, conv.id, [
+      { role: "user", content: "x" },
+    ]);
+    await deleteConversation(CONV_UID_A, conv.id);
+    const remaining = await prisma.ai_chat_messages.count({
+      where: { conversation_id: conv.id },
+    });
+    expect(remaining).toBe(0);
+  });
+});
+```
+
+- [ ] **Step 3: Replace the HTTP history tests** (the `/history` `it(...)` blocks) with conversation HTTP tests inside the existing `describe("HTTP /api/admin/ai", …)`:
+
+```ts
+it("GET /conversations requires ai.use", async () => {
+  const res = await app.inject({
+    method: "GET",
+    url: "/api/admin/ai/conversations",
+    headers: { Authorization: `Bearer ${noPermToken}` },
+  });
+  expect(res.statusCode).toBe(403);
+});
+
+it("conversation lifecycle over HTTP (create → append → list → rename → delete)", async () => {
+  const created = await app.inject({
+    method: "POST",
+    url: "/api/admin/ai/conversations",
+    headers: {
+      Authorization: `Bearer ${adminToken}`,
+      "Content-Type": "application/json",
+    },
+    payload: { title: `${HIST_MARKER} t` },
+  });
+  expect(created.statusCode).toBe(200);
+  const id = created.json().data.conversation.id as number;
+
+  const app2 = await app.inject({
+    method: "POST",
+    url: `/api/admin/ai/conversations/${id}/messages`,
+    headers: {
+      Authorization: `Bearer ${adminToken}`,
+      "Content-Type": "application/json",
+    },
+    payload: { messages: [{ role: "user", content: "ahoj" }] },
+  });
+  expect(app2.statusCode).toBe(200);
+
+  const msgs = await app.inject({
+    method: "GET",
+    url: `/api/admin/ai/conversations/${id}/messages`,
+    headers: { Authorization: `Bearer ${adminToken}` },
+  });
+  expect(
+    msgs.json().data.messages.map((m: { content: string }) => m.content),
+  ).toContain("ahoj");
+
+  const renamed = await app.inject({
+    method: "PATCH",
+    url: `/api/admin/ai/conversations/${id}`,
+    headers: {
+      Authorization: `Bearer ${adminToken}`,
+      "Content-Type": "application/json",
+    },
+    payload: { title: `${HIST_MARKER} renamed` },
+  });
+  expect(renamed.json().data.conversation.title).toBe(`${HIST_MARKER} renamed`);
+
+  const del = await app.inject({
+    method: "DELETE",
+    url: `/api/admin/ai/conversations/${id}`,
+    headers: { Authorization: `Bearer ${adminToken}` },
+  });
+  expect(del.statusCode).toBe(200);
+});
+
+it("GET messages of a non-existent conversation → 404", async () => {
+  const res = await app.inject({
+    method: "GET",
+    url: "/api/admin/ai/conversations/999999000/messages",
+    headers: { Authorization: `Bearer ${adminToken}` },
+  });
+  expect(res.statusCode).toBe(404);
+});
+```
+
+- [ ] **Step 4: Gate**
+
+Run: `npx vitest run src/__tests__/ai.test.ts` — expect all passing. Then `npx vitest run` — expect the whole suite green.
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add src/__tests__/ai.test.ts
+git commit -m "test(odin): conversation CRUD, isolation, auto-title, cascade"
+```
+
+---
+
+## Task 4: Frontend queries + types
+
+**Files:**
+
+- Modify: `src/admin/lib/queries/ai.ts`
+
+- [ ] **Step 1: Add conversation options.** Keep everything (incl. `aiHistoryOptions` for now — it's removed in Task 6 alongside its only consumer `DashAssistant.tsx`, so every task stays green). Add:
+
+```ts
+export interface Conversation {
+  id: number;
+  title: string;
+  updated_at: string;
+}
+
+export const aiConversationsOptions = () =>
+  queryOptions({
+    queryKey: ["ai", "conversations"],
+    queryFn: () =>
+      jsonQuery<{ conversations: Conversation[] }>(
+        "/api/admin/ai/conversations",
+      ),
+    staleTime: 30_000,
+  });
+
+export const aiConversationMessagesOptions = (id: number) =>
+  queryOptions({
+    queryKey: ["ai", "conversation", id, "messages"],
+    queryFn: () =>
+      jsonQuery<{ messages: StoredChatMessage[] }>(
+        `/api/admin/ai/conversations/${id}/messages`,
+      ),
+    // Re-read the DB on each mount/selection (no stale-cache resurrection).
+    staleTime: Infinity,
+    gcTime: 0,
+  });
+```
+
+- [ ] **Step 2: Gate**
+
+Run: `npx tsc -p tsconfig.app.json --noEmit` — expect exit 0 (we kept `aiHistoryOptions`, so `DashAssistant.tsx` still compiles).
+
+- [ ] **Step 3: Commit**
+
+```bash
+git add src/admin/lib/queries/ai.ts
+git commit -m "feat(odin): conversation query options"
+```
+
+---
+
+## Task 5: Frontend presentational components
+
+**Files:**
+
+- Create: `src/admin/components/odin/OdinTabs.tsx`
+- Create: `src/admin/components/odin/OdinThread.tsx`
+- Create: `src/admin/components/odin/InvoiceReviewCard.tsx`
+- Create: `src/admin/components/odin/OdinComposer.tsx`
+
+These are **props-driven** (no data fetching). Port presentational details (bubble styling, the `Typography`-color fix, review-card fields, staged chips) from the current `src/admin/components/dashboard/DashAssistant.tsx`, which the implementer should read first.
+
+- [ ] **Step 1: Shared types** — define at the top of `OdinChat.tsx` (Task 6) and import where needed, OR duplicate the tiny `ChatTurn` shape. Use these exact shapes across files:
+
+```ts
+export interface ChatTurn {
+  role: "user" | "assistant";
+  content: string;
+}
+export interface ReviewInvoice {
+  uid: string;
+  supplier_name: string;
+  invoice_number: string;
+  amount: string;
+  currency: string;
+  vat_rate: string;
+  issue_date: string;
+  due_date: string;
+  description: string;
+  file_name: string;
+  file: File;
+}
+export type EditableField =
+  | "supplier_name"
+  | "invoice_number"
+  | "amount"
+  | "currency"
+  | "vat_rate"
+  | "issue_date"
+  | "due_date"
+  | "description";
+export interface StagedFile {
+  id: string;
+  file: File;
+}
+```
+
+Put these in a new `src/admin/components/odin/types.ts` and import from there in every odin file.
+
+- [ ] **Step 2: `OdinTabs.tsx`** — props and behavior:
+
+```tsx
+interface OdinTabsProps {
+  conversations: { id: number; title: string }[];
+  activeId: number | null;
+  busy: boolean;
+  onSelect: (id: number) => void;
+  onNew: () => void;
+  onRename: (id: number, title: string) => void;
+  onDelete: (id: number) => void;
+}
+```
+
+Render a horizontally-scrollable row (`Box` with `overflowX: "auto"`, `display: flex`, `gap`). Each conversation is a clickable pill (`Button` size small; active = `contained`, else `outlined color="inherit"`). After the pills, a `+` `Button` calls `onNew`. The **active** pill shows a small `⋮` `IconButton` opening an `@mui/material` `Menu` with "Přejmenovat" and "Smazat". "Přejmenovat" opens the kit `Modal` containing a `TextField` (prefilled with current title) → on submit calls `onRename`. "Smazat" opens the kit `ConfirmDialog` → on confirm calls `onDelete`. All actions disabled while `busy`.
+
+- [ ] **Step 3: `OdinThread.tsx`** — props:
+
+```tsx
+interface OdinThreadProps {
+  turns: ChatTurn[];
+  busy: boolean;
+  loading: boolean;
+  threadRef: React.RefObject<HTMLDivElement>;
+}
+```
+
+Render the scrolling message area (`flex: 1, minHeight: 0, overflowY: "auto"`). Assistant turns left with a small circular Odin avatar (`Box` 28px, `borderRadius: "50%"`, `bgcolor: "primary.main"`, white "O"); user turns right-aligned `primary.main` bubble. **Message colour MUST be on the `Typography`** (`color: user ? "common.white" : "text.primary"`) — GlobalStyles pins `p` to text.secondary. Empty state (no turns, not busy, not loading): centered Odin avatar + "Dobrý den, jsem Odin. Zeptejte se, nebo přiložte fakturu (PDF) k importu." When `loading`: "Načítám…". When `busy`: a `CircularProgress size={14}` + "Pracuji…" row.
+
+- [ ] **Step 4: `InvoiceReviewCard.tsx`** — props:
+
+```tsx
+interface InvoiceReviewCardProps {
+  inv: ReviewInvoice;
+  busy: boolean;
+  onChange: (uid: string, field: EditableField, value: string) => void;
+  onSave: (inv: ReviewInvoice) => void;
+  onDiscard: (uid: string) => void;
+}
+```
+
+Port the card body from `DashAssistant.tsx` verbatim (the `Chip "Faktura"` + filename header, the 2-col grid of `TextField`s including **"Částka s DPH"**, "Datum splatnosti", "Popis", and the Uložit / Zahodit buttons). Replace `patch(...)`→`onChange(...)`, `saveInvoice`→`onSave`, the discard filter→`onDiscard(inv.uid)`.
+
+- [ ] **Step 5: `OdinComposer.tsx`** — props:
+
+```tsx
+interface OdinComposerProps {
+  input: string;
+  attachments: StagedFile[];
+  busy: boolean;
+  canSubmit: boolean;
+  fileRef: React.RefObject<HTMLInputElement>;
+  onInput: (v: string) => void;
+  onFiles: (files: FileList | null) => void;
+  onRemoveAttachment: (id: string) => void;
+  onSubmit: () => void;
+}
+```
+
+Port the staged-attachment chips + the composer row (hidden file `input`, "Přiložit" button, `TextField` with Enter-to-submit, "Odeslat" button) from `DashAssistant.tsx`. Disable per `busy` / `!canSubmit`.
+
+- [ ] **Step 6: Gate**
+
+Run: `npx tsc -p tsconfig.app.json --noEmit` — expect exit 0 (these compile independently of the orchestrator). If a component is unused at this point, that is fine — Task 6 wires them.
+
+- [ ] **Step 7: Commit**
+
+```bash
+git add src/admin/components/odin
+git commit -m "feat(odin): tabs, thread, review-card, composer components"
+```
+
+---
+
+## Task 6: OdinChat orchestrator + page + delete DashAssistant
+
+**Files:**
+
+- Create: `src/admin/components/odin/OdinChat.tsx`
+- Modify: `src/admin/pages/Odin.tsx`
+- Modify: `src/admin/lib/queries/ai.ts` (remove `aiHistoryOptions`)
+- Delete: `src/admin/components/dashboard/DashAssistant.tsx`
+
+- [ ] **Step 1: Write `OdinChat.tsx`.** It owns all state + queries + the ported submit/extract/save logic, scoped to the active conversation. Port the helper fns (`summaryNote`, `nextUid`, `plural`, `MODEL_CONTEXT`, `MAX_STORE`) and the **submit / saveInvoice / onFiles / persist** logic from `DashAssistant.tsx` with these adaptations:
+  - **Queries:** `usage` (unchanged), `aiConversationsOptions()`, and `aiConversationMessagesOptions(activeId)` (enabled when `activeId != null`).
+  - **State:** `activeId: number | null`, plus `input`, `busy`, `turns`, `review`, `attachments`, `fileRef`, `threadRef`.
+  - **Ensure a conversation exists:** when the conversations query resolves: if empty, `POST /conversations` to create a default and `setActiveId(new.id)` + invalidate `["ai","conversations"]`; else if `activeId == null`, `setActiveId(list[0].id)`.
+  - **Seed per conversation:** a `seededId = useRef<number|null>(null)`. Effect keyed on `[activeId, messagesData]`: when `messagesData` for the active id arrives and `seededId.current !== activeId`, set `seededId.current = activeId`, `setTurns(messagesData.messages.map(m => ({role:m.role, content:m.content})))`, `setReview([])`.
+  - **Switch tab (`onSelect`):** `setActiveId(id); setTurns([]); setReview([]); seededId.current = null;` (force re-seed; the messages query for the new id loads and seeds).
+  - **`persist(msgs)`** posts to `/api/admin/ai/conversations/${activeId}/messages` (was `/history`); best-effort + `console.error` on failure.
+  - **`submit`:** identical to `DashAssistant.submit` EXCEPT it first ensures `activeId` (if null, await-create one and use it); marks `seededId.current = activeId`; on success persists via the conversation endpoint; on error rolls back + keeps input/attachments. Gate `canSubmit` on `!conversationsPending && activeId != null && !busy && (input.trim() || attachments.length)`.
+  - **`onNew`:** `POST /conversations` → select it (`setActiveId`, clear turns/review, `seededId.current=null`) + invalidate `["ai","conversations"]`.
+  - **`onRename(id, title)`:** `PATCH /conversations/:id` → invalidate `["ai","conversations"]`.
+  - **`onDelete(id)`:** `DELETE /conversations/:id` → invalidate `["ai","conversations"]`; if `id === activeId`, pick another conversation from the (refetched) list or null.
+  - **Layout:** a full-height shell — `Box sx={{ height: "calc(100dvh - 140px)", display: "flex", flexDirection: "column" }}` containing: header (`Odin` + budget `Utraceno: $x / $y`), `<OdinTabs … />`, `<OdinThread … />` (flex 1), the review list (`review.map(inv => <InvoiceReviewCard … />)` in a bounded `maxHeight: "35vh", overflowY: "auto"` box), and `<OdinComposer … />`.
+  - **Self-hide:** keep `if (usage && usage.configured === false) return null;`.
+
+Reference the exact bodies of `submit`, `saveInvoice`, `onFiles`, `summaryNote`, `nextUid` in the current `DashAssistant.tsx` (lines ~52–333) — copy them, applying only the adaptations above.
+
+- [ ] **Step 2: Update `src/admin/pages/Odin.tsx`** — swap the import and render:
+
+```tsx
+import OdinChat from "../components/odin/OdinChat";
+// …
+<Box sx={{ maxWidth: 1100, mx: "auto" }}>
+  <OdinChat />
+</Box>;
+```
+
+- [ ] **Step 3: Delete `src/admin/components/dashboard/DashAssistant.tsx`** and remove the now-orphaned `aiHistoryOptions` from `src/admin/lib/queries/ai.ts` (DashAssistant was its only consumer).
+
+```bash
+git rm src/admin/components/dashboard/DashAssistant.tsx
+```
+
+- [ ] **Step 4: Gate**
+
+Run: `npx tsc -b --noEmit` — expect exit 0. Run: `npm run build` — expect success. Run: `npx vitest run` — expect the full suite green.
+
+- [ ] **Step 5: Commit**
+
+```bash
+git add src/admin/components/odin/OdinChat.tsx src/admin/pages/Odin.tsx src/admin/lib/queries/ai.ts
+git commit -m "feat(odin): OdinChat orchestrator; render on /odin; remove DashAssistant"
+```
+
+---
+
+## Final verification (controller)
+
+- `npx tsc -b --noEmit` = 0, `npm run build` = success, `npx vitest run` = all green.
+- Manual (user/controller): create a conversation, send a chat, attach a PDF → review → save, rename a tab, delete a tab, reload (history persists per conversation), switch tabs (each keeps its own thread).
+- Adversarial review pass (workflow) before merge/release.

docs/superpowers/plans/2026-06-10-audit-high-fix-pass.md

@@ -0,0 +1,188 @@
+# 2026-06-10 — Audit fix pass #1: all verified CRITICAL/HIGH findings
+
+Source: `REVIEW_FINDINGS.md` (2026-06-09 full audit, 304 files). Scope of this pass:
+the 19 verified per-file **HIGH** findings + the project-level **CRITICAL** dependency
+finding. The two project-level HIGH _structural refactors_ (service-layer extraction for
+6 route files; PDF template dedup) are explicitly **out of scope** — they are
+multi-thousand-line refactors that deserve their own pass.
+
+Execution: subagent-driven development — one implementer per task (sequential, shared
+test DB forbids parallel test runs), spec-compliance review then code-quality review
+after each. No commits until the user asks. Final full gates:
+`npx tsc -b --noEmit` · `npx vitest run` · `npm run lint` · `npm run build`.
+
+---
+
+## Task H — Dependencies (project-level CRITICAL) — done inline by controller
+
+- Remove `concurrently` from devDependencies (unused; carries both critical advisories
+  GHSA-w7jw-789q-3m8p / shell-quote CVSS 8.1).
+- Add `"overrides": { "@hono/node-server": "^1.19.13" }` (clears the 3 moderate
+  advisories from the prisma → @prisma/dev chain; do NOT take npm's Prisma 6 downgrade).
+- Remove deprecated stub types `@types/dompurify`, `@types/bcryptjs`; move `@types/jsdom`
+  to devDependencies.
+- Add `qrcode` + `@types/qrcode` (needed by Task B to replace the CSP-blocked external
+  QR service).
+- `npm install`, verify `npm audit` (criticals+moderates gone), typecheck.
+
+## Task A — Attendance create/edit broken since 519edce (top-5 #1)
+
+Findings (both verified HIGH):
+
+- `src/admin/pages/AttendanceCreate.tsx:80-99` — handleSubmit posts the raw form whose
+  shape the API does not accept: `arrival_date`/`break_start_date`/`break_start_time`/
+  `break_end_*`/`departure_date` are not in CreateAttendanceSchema (silently stripped —
+  breaks and overnight dates never save); times are never combined with dates (unlike
+  useAttendanceAdmin's combineDatetime), so a validated "HH:MM" would reach
+  createAttendance which does `new Date('08:00')` → Invalid Date → 500; and since commit
+  519edce the always-sent empty-string time fields (`arrival_time: ""`) fail timeString
+  validation, so EVERY submit from this page — including leave records — returns 400.
+- `src/admin/pages/AttendanceAdmin.tsx:407-442` (logic in `useAttendanceAdmin.ts`) —
+  create/edit modal submits send combined `YYYY-MM-DDTHH:MM:00` datetimes for
+  arrival/departure/break, but since 519edce CreateAttendanceSchema/UpdateAttendanceSchema
+  validate them with `timeString` (HH:MM only) — every create/edit containing a time is
+  rejected 400 "Čas musí být ve formátu HH:MM" (and the service itself expects full
+  datetimes via `new Date(...)`); additionally `break_start`/`break_end` are absent from
+  CreateAttendanceSchema, so breaks are silently stripped on create.
+
+Direction: first `git show 519edce` to understand the intent; the schema contradicts
+both client and service, so the fix is to make the schemas validate the combined
+local-datetime wire format the client sends and the service consumes (lenient helper in
+`src/schemas/common.ts` per repo convention), add `break_start`/`break_end` to the create
+schema, and rewrite AttendanceCreate.tsx's submit to combine date+time and omit empty
+optionals. TDD: route-level regression tests (work record with times+breaks, overnight,
+leave record without times, update) in `src/__tests__/`.
+
+## Task B — 2FA: backup-code login, enrollment QR, dashboard status (top-5 #2)
+
+Findings (all verified HIGH):
+
+- `src/admin/context/AuthContext.tsx:263-272` — backup-code login broken: verify2FA
+  always POSTs to /login/totp with the code as totp_code plus an isBackup flag the server
+  ignores; TotpVerifySchema requires exactly 6 digits so 8-char backup codes always 400.
+  The real endpoint POST /api/admin/totp/backup-verify (expects backup_code) is never
+  called anywhere in the frontend — lockout for any user who lost their authenticator.
+- `src/admin/components/dashboard/DashProfile.tsx:556` — QR `<img>` from api.qrserver.com
+  is blocked by the production CSP (img-src 'self' data: blob: + osm tiles), so prod 2FA
+  enrollment shows a broken image. (Also a privacy bug: the TOTP secret is sent to a
+  third-party URL.) Fix: generate the QR locally with the `qrcode` package
+  (`QRCode.toDataURL(otpauthUrl)`) — data: is already CSP-allowed.
+- `src/admin/pages/Dashboard.tsx:89-91` — totpEnabled derived from require2FAOptions()
+  which returns the COMPANY-WIDE require_2fa policy flag, not the user's enrollment; the
+  per-user endpoint (totp.ts:190-197) is never queried. Wrong "2FA Aktivní/Neaktivní" and
+  wrong button shown.
+
+Direction: read `src/routes/admin/totp.ts` first; wire Login/AuthContext so a backup code
+goes to backup-verify and completes the login-token flow. If the server endpoint doesn't
+fit the loginToken flow, extend it minimally (single-use code consumption + logAudit
+preserved). Server test for backup-verify login path if server is touched.
+
+## Task C — Invoice/issued-order edit integrity (top-5 #3)
+
+Findings (all verified HIGH):
+
+- `src/admin/pages/InvoiceDetail.tsx:728` — edit hydration overwrites each item's
+  persisted per-line VAT with the invoice-level rate (`vat_rate: Number(inv.vat_rate) || 21`)
+  though invoice_items.vat_rate is a real per-item column — re-saving a mixed-rate invoice
+  silently corrupts per-line VAT in the DB; `|| 21` also turns legitimate 0% into 21%
+  (same falsy-zero at line 689).
+- `src/admin/pages/InvoiceDetail.tsx:1891-1902` — editing "Text fakturace (na PDF)" is
+  silently lost: payload includes billing_text but UpdateInvoiceSchema
+  (src/schemas/invoices.schema.ts:46-67) has no billing_text field, so Zod strips it
+  (updateInvoice supports it via strFields). Add the field to the schema + server test.
+- `src/admin/pages/IssuedOrderDetail.tsx:606-611` — hydration falsy-fallbacks:
+  `quantity: Number(it.quantity) || 1` turns saved 0 into 1; `vat_rate: Number(it.vat_rate)
+|| Number(d.vat_rate) || 21` turns a saved 0% line into 21% — displayed wrong and
+  silently persisted on next save.
+- `src/admin/pages/IssuedOrderDetail.tsx:826-839` — handleStatusChange never mirrors the
+  new status into form.status, so StatusChip, the `editable` flag and the delete-button
+  gate use the stale status after every transition.
+
+Use Number.isFinite-style coercion that respects 0 (e.g. `const n = Number(x);
+Number.isFinite(n) ? n : fallback`).
+
+## Task D — Trips: truncated lists/totals + dropped vehicle edit (top-5 #4a)
+
+Findings (all verified HIGH):
+
+- `src/admin/lib/queries/trips.ts:52-63` — tripListOptions consumes the paginated
+  endpoint via plain jsonQuery, discarding pagination meta; Trips.tsx uses default limit
+  25 and TripsAdmin perPage:100 (server hard cap) — both silently truncate with no
+  pagination controls.
+- `src/admin/lib/queries/trips.ts:95-103` — tripHistoryOptions sends no page/per_page →
+  25 rows; TripsHistory.tsx computes monthly km/business totals from the truncated rows.
+- `src/admin/pages/Trips.tsx:324-336` — stat cards computed from the 25-row page;
+  header labels stats "current month" though the query has no month filter.
+- `src/admin/pages/TripsAdmin.tsx:295,665-676` — edit modal sends vehicle_id but
+  UpdateTripSchema (src/schemas/trips.schema.ts:23-31) has no vehicle_id and the PUT
+  handler never applies it — vehicle change silently dropped. Add to schema
+  (nullableIntIdFromForm) + apply in route + audit + server test.
+- `src/admin/pages/TripsHistory.tsx:98-104,121-128` — same 25-row truncation for the
+  month view and its stat cards.
+
+Direction for totals: prefer a server-side aggregate (the repo already has per-currency
+totals endpoints for invoices/orders as the pattern) over fetching all pages client-side;
+lists get real pagination using the existing `usePaginatedQuery`/`Pagination` kit pieces
+used elsewhere. Keep the month-filter semantics of TripsHistory correct (totals must
+cover the WHOLE month, not one page).
+
+## Task E — orders.service.ts: PDF blob in every response (top-5 #4b)
+
+Finding (verified HIGH): `src/services/orders.service.ts:154-176,196-216,228-263,570,683`
+— attachment_data (full PDF blob, Bytes) is fetched on every query with no select/omit
+and spread into API responses by enrichOrder/getOrder; getOrderTotals loads every blob
+for the whole filtered set just to sum totals; updateOrder/deleteOrder pre-reads pull the
+blob to check status/number. A dedicated /:id/attachment endpoint already exists.
+Exclude the blob from list/detail/totals/pre-reads (keep has_attachment-style boolean if
+the FE needs it — check FE usage), keep the attachment endpoint working, extend
+`src/__tests__/orders-list.test.ts` to assert attachment_data is absent.
+
+## Task F — Warehouse: unit enum 400s + dead attachment download
+
+Findings (both verified HIGH):
+
+- `src/admin/pages/WarehouseItemDetail.tsx:451-462` — "Jednotka" is free-text but the
+  server requires UnitEnum ("ks","m","kg","bal","sada","m2","m3","l") — any other value
+  400s create/update. Make it a Select over the enum values (single source: mirror the
+  server enum list).
+- `src/admin/pages/WarehouseReceiptDetail.tsx:251-259` — attachment link targets
+  GET /warehouse/receipts/:id/attachments/:attachmentId which does not exist (only POST
+  upload + DELETE are registered in warehouse.ts), and a plain <a href> sends no
+  Authorization header anyway. Add the GET download route (requirePermission, correct
+  content-type/disposition) + authenticated blob download in the UI (fetch via apiFetch →
+  object URL, like other binary downloads in the repo). Server test for the new route.
+
+## Task G — Small fixes
+
+- `.claude/hooks/block-env.js:10-11` (verified HIGH) — block decision never takes
+  effect: prints {decision:'block'} JSON to stdout then exits 1; Claude Code only parses
+  stdout JSON on exit 0 and only blocks on exit 2 (reason on stderr). Fix: exit 2 with the
+  reason on stderr.
+- `src/admin/pages/Projects.tsx:153-154` (verified HIGH) — create modal submits
+  start_date/end_date initialized to "" which isoDateString.nullish() rejects → creating
+  a project without filling BOTH dates always 400s. Send null/omit when empty.
+
+---
+
+## Status
+
+- [x] H — dependencies (controller, inline) — criticals+moderates cleared; only the
+      2 known-mitigated quill lows remain
+- [x] A — attendance create/edit — dateTimeString helpers, break fields, rewritten
+      AttendanceCreate payload; 6 regression tests
+- [x] B — 2FA — backup-verify wired (+ remember-me parity server-side), local QR via
+      qrcode lib, per-user totp status; 6 tests
+- [x] C — invoice/issued-order edit integrity — numberOr (shared in formatters.ts),
+      billing_text in UpdateInvoiceSchema, status mirror; 2 tests
+- [x] D — trips — paginated queries + Pagination UI on 3 pages, GET /trips/stats
+      (buildTripsWhere shared), vehicle_id on PUT + both-vehicle odometer recompute,
+      print rebuilt (sync window.open, escaped string template); 7 tests
+- [x] E — orders attachment_data excluded from all non-binary reads (incl.
+      numbering/invoices/orders-pdf callers); 4 tests
+- [x] F — warehouse unit Select + GET receipt attachment route + authenticated blob
+      download; RFC 5987 content-disposition helper (also fixes received-invoices +
+      orders Czech-filename 500); 6 tests
+- [x] G — block-env hook exit 2/stderr (verified empirically), Projects empty dates
+      → null
+- [x] Final gates: tsc -b clean · vitest 30 files / 342 tests green · lint 0 errors ·
+      build OK. Whole-diff 3-lens review: see final report.

docs/superpowers/specs/2026-05-29-warehouse-module-design.md

@@ -0,0 +1,770 @@
+# Warehouse (Sklad) Module Design
+
+**Date:** 2026-05-29
+**Status:** Approved
+**Module:** Warehouse/Inventory management for boha-app-ts
+
+---
+
+## Overview
+
+Full warehouse management module under the Administration section. Tracks material receiving, issuing, reservations, inventory, and project assignment. Uses true FIFO with batch-level tracking, document-driven architecture (header + lines), and integrates with existing projects, number sequences, and NAS file storage.
+
+---
+
+## Requirements
+
+### Movements
+
+- **Receipt (Prijem):** Material enters warehouse. Multi-item document with delivery note attachment.
+- **Issue (Vydej):** Material leaves warehouse, mandatory project assignment. Multi-item document.
+- **Reservation:** Virtual hold on stock before issue. Reduces available qty but not physical stock. Issue consumes reservation.
+- **Inventory (Inventura):** Corrective movements based on physical count vs system count.
+- **Storno:** Cancel a confirmed receipt or issue. Creates opposite corrective movements, preserves audit trail.
+
+### Catalog
+
+- Each material has: catalog number, name, description, category, unit, min quantity.
+- Categories are user-defined (CRUD).
+- Units are fixed list: ks, m, kg, bal, sada, m2, m3, l.
+- Items can be soft-deactivated (is_active=false).
+
+### Pricing
+
+- Purchase price per unit, recorded bez DPH.
+- True FIFO: each receipt line creates a batch. Issues consume oldest batches first.
+- Batch-level tracking with remaining quantity.
+
+### Delivery Notes
+
+- File attachment (PDF/image) uploaded to NAS.
+- Delivery note number and date stored as metadata on receipt header.
+
+### Suppliers
+
+- Separate `sklad_suppliers` table (ICO, DIC, contact info).
+- Not shared with customers table.
+
+### Locations
+
+- Warehouse has named locations/shelves (code + name, e.g. "A1 - Regal A, police 1").
+- Junction table tracks qty per item per location.
+
+### Projects
+
+- Every issue is mandatory FK to `projects` table.
+- No free/issues without project assignment.
+
+### Min Stock Alerts
+
+- Each item has optional `min_quantity`.
+- Dashboard highlights items below minimum.
+- No email notification (UI alert only).
+
+### Immutability
+
+- All movements are immutable once confirmed.
+- Corrections via storno (cancel receipt/issue) which creates opposite movements.
+- Draft movements can be edited freely.
+
+### Numbering
+
+- Auto-numbering via `number_sequences` on confirm.
+- Types: `warehouse_receipt` (e.g. PRI-2026-001), `warehouse_issue` (e.g. VYD-2026-001).
+
+### Issue Documents
+
+- No PDF generation for issues. Record only in system.
+
+### Reports
+
+- Stock status: all items with qty, min_qty, value, below-min flag.
+- Project consumption: material consumed per project (filter by project, date range).
+- Movement log: all receipts + issues with filters.
+- Below minimum: items under min_quantity.
+
+---
+
+## Architecture: Document-Driven
+
+Each movement type is a document (header + lines), matching the existing invoice/offer pattern.
+
+### Document Flow
+
+```
+DRAFT → CONFIRMED (affects stock)
+DRAFT → CANCELLED (no stock effect)
+CONFIRMED → CANCELLED (storno: reverses stock changes)
+```
+
+Only CONFIRMED documents affect `sklad_batches`, `sklad_item_locations`, and reservations.
+
+---
+
+## Database Schema
+
+### Enums
+
+```prisma
+enum sklad_receipt_status {
+  DRAFT
+  CONFIRMED
+  CANCELLED
+}
+
+enum sklad_issue_status {
+  DRAFT
+  CONFIRMED
+  CANCELLED
+}
+
+enum sklad_reservation_status {
+  ACTIVE
+  FULFILLED
+  CANCELLED
+}
+
+enum sklad_inventory_status {
+  DRAFT
+  CONFIRMED
+}
+```
+
+### Master Data
+
+```prisma
+model sklad_categories {
+  id          Int       @id @default(autoincrement())
+  name        String    @db.VarChar(100)
+  description String?   @db.Text
+  sort_order  Int       @default(0)
+  created_at  DateTime? @default(now()) @db.DateTime(0)
+  modified_at DateTime? @db.DateTime(0)
+
+  items sklad_items[]
+
+  @@map("sklad_categories")
+}
+
+model sklad_suppliers {
+  id             Int       @id @default(autoincrement())
+  name           String    @db.VarChar(255)
+  ico            String?   @db.VarChar(20)
+  dic            String?   @db.VarChar(20)
+  contact_person String?  @db.VarChar(255)
+  email          String?   @db.VarChar(255)
+  phone          String?   @db.VarChar(50)
+  address        String?   @db.Text
+  notes          String?   @db.Text
+  is_active      Boolean   @default(true)
+  created_at     DateTime? @default(now()) @db.DateTime(0)
+  modified_at    DateTime? @db.DateTime(0)
+
+  receipts sklad_receipts[]
+
+  @@map("sklad_suppliers")
+}
+
+model sklad_locations {
+  id          Int       @id @default(autoincrement())
+  code        String    @unique @db.VarChar(20)
+  name        String    @db.VarChar(100)
+  description String?   @db.Text
+  is_active   Boolean   @default(true)
+  created_at  DateTime? @default(now()) @db.DateTime(0)
+  modified_at DateTime? @db.DateTime(0)
+
+  items sklad_item_locations[]
+
+  @@map("sklad_locations")
+}
+
+model sklad_items {
+  id              Int       @id @default(autoincrement())
+  item_number     String?   @unique @db.VarChar(50)
+  name            String    @db.VarChar(255)
+  description     String?   @db.Text
+  category_id     Int?
+  unit            String    @db.VarChar(20)
+  min_quantity    Decimal?  @db.Decimal(12, 3)
+  is_active       Boolean   @default(true)
+  notes           String?   @db.Text
+  created_at      DateTime? @default(now()) @db.DateTime(0)
+  modified_at     DateTime? @db.DateTime(0)
+
+  category        sklad_categories?  @relation(fields: [category_id], references: [id])
+  batches         sklad_batches[]
+  item_locations  sklad_item_locations[]
+
+  @@index([category_id], map: "sklad_items_category_id")
+  @@map("sklad_items")
+}
+```
+
+### FIFO Batches & Location Tracking
+
+```prisma
+model sklad_batches {
+  id              Int       @id @default(autoincrement())
+  item_id         Int
+  receipt_line_id Int
+  quantity         Decimal   @db.Decimal(12, 3)
+  original_qty    Decimal   @db.Decimal(12, 3)
+  unit_price      Decimal   @db.Decimal(12, 2)
+  received_at     DateTime? @db.DateTime(0)
+  is_consumed     Boolean   @default(false)
+
+  item            sklad_items       @relation(fields: [item_id], references: [id])
+  receipt_line    sklad_receipt_lines @relation(fields: [receipt_line_id], references: [id])
+
+  @@index([item_id, is_consumed, received_at], map: "sklad_batches_fifo")
+  @@map("sklad_batches")
+}
+
+model sklad_item_locations {
+  id          Int       @id @default(autoincrement())
+  item_id     Int
+  location_id Int
+  quantity    Decimal   @default(0) @db.Decimal(12, 3)
+
+  item        sklad_items     @relation(fields: [item_id], references: [id])
+  location    sklad_locations @relation(fields: [location_id], references: [id])
+
+  @@unique([item_id, location_id], map: "sklad_item_locations_unique")
+  @@map("sklad_item_locations")
+}
+```
+
+### Receipts
+
+```prisma
+model sklad_receipts {
+  id                    Int       @id @default(autoincrement())
+  receipt_number         String?   @db.VarChar(50)
+  supplier_id            Int?
+  delivery_note_number   String?   @db.VarChar(100)
+  delivery_note_date     DateTime? @db.DateTime(0)
+  received_by            Int?
+  notes                  String?   @db.Text
+  status                 sklad_receipt_status @default(DRAFT)
+  created_at             DateTime? @default(now()) @db.DateTime(0)
+  modified_at            DateTime? @db.DateTime(0)
+
+  supplier               sklad_suppliers? @relation(fields: [supplier_id], references: [id])
+  received_by_user       users? @relation(fields: [received_by], references: [id])
+  lines                  sklad_receipt_lines[]
+  attachments            sklad_receipt_attachments[]
+
+  @@map("sklad_receipts")
+}
+
+model sklad_receipt_lines {
+  id          Int       @id @default(autoincrement())
+  receipt_id  Int
+  item_id     Int
+  quantity    Decimal   @db.Decimal(12, 3)
+  unit_price  Decimal   @db.Decimal(12, 2)
+  location_id Int?
+  notes       String?   @db.VarChar(255)
+
+  receipt     sklad_receipts @relation(fields: [receipt_id], references: [id])
+  item        sklad_items @relation(fields: [item_id], references: [id])
+  location    sklad_locations? @relation(fields: [location_id], references: [id])
+  batch       sklad_batches?
+
+  @@index([receipt_id], map: "sklad_receipt_lines_receipt_id")
+  @@map("sklad_receipt_lines")
+}
+
+model sklad_receipt_attachments {
+  id          Int       @id @default(autoincrement())
+  receipt_id  Int
+  file_name   String    @db.VarChar(255)
+  file_mime   String    @db.VarChar(100)
+  file_size   Int
+  file_path   String    @db.VarChar(500)
+  created_at  DateTime? @default(now()) @db.DateTime(0)
+
+  receipt     sklad_receipts @relation(fields: [receipt_id], references: [id])
+
+  @@map("sklad_receipt_attachments")
+}
+```
+
+### Issues
+
+```prisma
+model sklad_issues {
+  id            Int       @id @default(autoincrement())
+  issue_number  String?   @db.VarChar(50)
+  project_id    Int
+  issued_by     Int?
+  notes         String?   @db.Text
+  status        sklad_issue_status @default(DRAFT)
+  created_at    DateTime? @default(now()) @db.DateTime(0)
+  modified_at   DateTime? @db.DateTime(0)
+
+  project       projects @relation(fields: [project_id], references: [id])
+  issued_by_user users? @relation(fields: [issued_by], references: [id])
+  lines         sklad_issue_lines[]
+
+  @@map("sklad_issues")
+}
+
+model sklad_issue_lines {
+  id             Int       @id @default(autoincrement())
+  issue_id       Int
+  item_id        Int
+  batch_id       Int
+  quantity       Decimal   @db.Decimal(12, 3)
+  location_id    Int?
+  reservation_id Int?
+  notes          String?   @db.VarChar(255)
+
+  issue          sklad_issues @relation(fields: [issue_id], references: [id])
+  item           sklad_items @relation(fields: [item_id], references: [id])
+  batch          sklad_batches @relation(fields: [batch_id], references: [id])
+  location       sklad_locations? @relation(fields: [location_id], references: [id])
+  reservation    sklad_reservations? @relation(fields: [reservation_id], references: [id])
+
+  @@index([issue_id], map: "sklad_issue_lines_issue_id")
+  @@map("sklad_issue_lines")
+}
+```
+
+### Reservations
+
+```prisma
+model sklad_reservations {
+  id            Int       @id @default(autoincrement())
+  item_id       Int
+  project_id    Int
+  quantity       Decimal   @db.Decimal(12, 3)
+  remaining_qty Decimal   @db.Decimal(12, 3)
+  reserved_by   Int?
+  notes         String?   @db.Text
+  status        sklad_reservation_status @default(ACTIVE)
+  created_at    DateTime? @default(now()) @db.DateTime(0)
+  modified_at   DateTime? @db.DateTime(0)
+
+  item            sklad_items @relation(fields: [item_id], references: [id])
+  project         projects @relation(fields: [project_id], references: [id])
+  reserved_by_user users? @relation(fields: [reserved_by], references: [id])
+  issue_lines     sklad_issue_lines[]
+
+  @@index([item_id, status], map: "sklad_reservations_item_status")
+  @@map("sklad_reservations")
+}
+```
+
+### Inventory
+
+```prisma
+model sklad_inventory_sessions {
+  id              Int       @id @default(autoincrement())
+  session_number  String?   @db.VarChar(50)
+  notes           String?   @db.Text
+  status          sklad_inventory_status @default(DRAFT)
+  created_at      DateTime? @default(now()) @db.DateTime(0)
+  modified_at     DateTime? @db.DateTime(0)
+
+  lines           sklad_inventory_lines[]
+
+  @@map("sklad_inventory_sessions")
+}
+
+model sklad_inventory_lines {
+  id          Int       @id @default(autoincrement())
+  session_id  Int
+  item_id     Int
+  location_id Int?
+  system_qty  Decimal   @db.Decimal(12, 3)
+  actual_qty  Decimal   @db.Decimal(12, 3)
+  difference  Decimal   @db.Decimal(12, 3)
+  notes       String?   @db.VarChar(255)
+
+  session     sklad_inventory_sessions @relation(fields: [session_id], references: [id])
+  item        sklad_items @relation(fields: [item_id], references: [id])
+  location    sklad_locations? @relation(fields: [location_id], references: [id])
+
+  @@index([session_id], map: "sklad_inventory_lines_session_id")
+  @@map("sklad_inventory_lines")
+}
+```
+
+**Total: 13 models + 5 enums**
+
+---
+
+## API Endpoints
+
+All under prefix `/api/admin/warehouse`.
+
+### Items (warehouse.manage)
+
+| Method | Path         | Description                                                   |
+| ------ | ------------ | ------------------------------------------------------------- |
+| GET    | `/items`     | List items (paginated, filter by category, search, below-min) |
+| GET    | `/items/:id` | Item detail with batches, locations, reservations             |
+| POST   | `/items`     | Create item                                                   |
+| PUT    | `/items/:id` | Update item                                                   |
+| DELETE | `/items/:id` | Soft-delete (is_active=false)                                 |
+
+### Categories (warehouse.manage)
+
+| Method | Path              | Description               |
+| ------ | ----------------- | ------------------------- |
+| GET    | `/categories`     | List all                  |
+| POST   | `/categories`     | Create                    |
+| PUT    | `/categories/:id` | Update                    |
+| DELETE | `/categories/:id` | Delete (only if no items) |
+
+### Suppliers (warehouse.manage)
+
+| Method | Path             | Description                   |
+| ------ | ---------------- | ----------------------------- |
+| GET    | `/suppliers`     | List (paginated, search)      |
+| GET    | `/suppliers/:id` | Detail                        |
+| POST   | `/suppliers`     | Create                        |
+| PUT    | `/suppliers/:id` | Update                        |
+| DELETE | `/suppliers/:id` | Soft-delete (is_active=false) |
+
+### Locations (warehouse.manage)
+
+| Method | Path             | Description                           |
+| ------ | ---------------- | ------------------------------------- |
+| GET    | `/locations`     | List all                              |
+| POST   | `/locations`     | Create                                |
+| PUT    | `/locations/:id` | Update                                |
+| DELETE | `/locations/:id` | Delete (only if no items at location) |
+
+### Receipts (warehouse.operate)
+
+| Method | Path                                      | Description                                                   |
+| ------ | ----------------------------------------- | ------------------------------------------------------------- |
+| GET    | `/receipts`                               | List (paginated, filter by status/supplier/date)              |
+| GET    | `/receipts/:id`                           | Detail with lines + attachments                               |
+| POST   | `/receipts`                               | Create receipt (DRAFT, with lines)                            |
+| PUT    | `/receipts/:id`                           | Update receipt + lines (DRAFT only)                           |
+| POST   | `/receipts/:id/confirm`                   | Confirm: creates batches, updates locations, generates number |
+| POST   | `/receipts/:id/cancel`                    | Cancel: storno batches if confirmed                           |
+| POST   | `/receipts/:id/attachments`               | Upload delivery note (multipart)                              |
+| DELETE | `/receipts/:id/attachments/:attachmentId` | Delete attachment                                             |
+
+### Issues (warehouse.operate)
+
+| Method | Path                  | Description                                                                             |
+| ------ | --------------------- | --------------------------------------------------------------------------------------- |
+| GET    | `/issues`             | List (paginated, filter by status/project/date)                                         |
+| GET    | `/issues/:id`         | Detail with lines                                                                       |
+| POST   | `/issues`             | Create issue (DRAFT, with lines)                                                        |
+| PUT    | `/issues/:id`         | Update issue + lines (DRAFT only)                                                       |
+| POST   | `/issues/:id/confirm` | Confirm: decrements batches, updates locations, fulfills reservations, generates number |
+| POST   | `/issues/:id/cancel`  | Cancel: restores batch quantities if confirmed                                          |
+
+### Reservations (warehouse.operate)
+
+| Method | Path                       | Description                          |
+| ------ | -------------------------- | ------------------------------------ |
+| GET    | `/reservations`            | List (filter by item/project/status) |
+| POST   | `/reservations`            | Create reservation                   |
+| POST   | `/reservations/:id/cancel` | Cancel reservation                   |
+
+### Inventory (warehouse.inventory)
+
+| Method | Path                              | Description                             |
+| ------ | --------------------------------- | --------------------------------------- |
+| GET    | `/inventory-sessions`             | List sessions                           |
+| GET    | `/inventory-sessions/:id`         | Detail with lines                       |
+| POST   | `/inventory-sessions`             | Create session (system_qty auto-filled) |
+| PUT    | `/inventory-sessions/:id`         | Update lines (DRAFT only)               |
+| POST   | `/inventory-sessions/:id/confirm` | Confirm: creates corrective movements   |
+
+### Reports (warehouse.view)
+
+| Method | Path                           | Description                                          |
+| ------ | ------------------------------ | ---------------------------------------------------- |
+| GET    | `/reports/stock-status`        | All items with qty, min_qty, value, below-min flag   |
+| GET    | `/reports/project-consumption` | Material per project (filter by project, date range) |
+| GET    | `/reports/movement-log`        | All movements with filters                           |
+| GET    | `/reports/below-minimum`       | Items below min_quantity                             |
+
+### Utility (warehouse.view)
+
+| Method | Path                       | Description                            |
+| ------ | -------------------------- | -------------------------------------- |
+| GET    | `/items/:id/available-qty` | Available qty (total stock - reserved) |
+| GET    | `/items/:id/batches`       | FIFO batch queue for item              |
+
+---
+
+## Business Logic
+
+### Receipt Confirm (single Prisma transaction)
+
+1. Validate status is DRAFT
+2. Generate `receipt_number` via `number_sequences` (type: `warehouse_receipt`)
+3. For each receipt line:
+   - Create `sklad_batches` row (quantity = original_qty = line qty, unit_price from line, received_at = now)
+   - Upsert `sklad_item_locations` (add qty to specified location)
+4. Update receipt status to CONFIRMED
+5. Log audit
+
+### Receipt Cancel
+
+**If DRAFT:** Set status to CANCELLED. No stock changes.
+
+**If CONFIRMED (storno):**
+
+1. Validate no issue lines have consumed batches from this receipt
+2. For each receipt line / batch:
+   - If batch is fully consumed (is_consumed=true), reject cancellation
+   - Decrement `sklad_item_locations` by batch remaining quantity
+   - Delete the batch row
+3. Set receipt status to CANCELLED
+4. Log audit
+
+### Issue Confirm (single Prisma transaction)
+
+1. Validate status is DRAFT
+2. For each issue line, validate: batch has enough remaining quantity
+3. Generate `issue_number` via `number_sequences` (type: `warehouse_issue`)
+4. For each issue line:
+   - Decrement `sklad_batches.quantity`, set `is_consumed=true` if 0
+   - Decrement `sklad_item_locations.quantity`
+   - If `reservation_id` set, decrement `sklad_reservations.remaining_qty`
+5. Check reservations: if remaining_qty = 0, set status to FULFILLED
+6. Update issue status to CONFIRMED
+7. Log audit
+
+### Issue Cancel
+
+**If DRAFT:** Set status to CANCELLED. No stock changes.
+
+**If CONFIRMED (storno):**
+
+1. For each issue line:
+   - Increment `sklad_batches.quantity`, set `is_consumed=false` if was true
+   - Increment `sklad_item_locations.quantity`
+   - If `reservation_id` set, increment `sklad_reservations.remaining_qty`, set status back to ACTIVE if was FULFILLED
+2. Set issue status to CANCELLED
+3. Log audit
+
+### Auto-FIFO on Issue Creation
+
+When creating an issue line, if user doesn't pick a specific batch:
+
+- Service selects oldest unconsumed batches for the item (via `sklad_batches_fifo` index)
+- May span multiple batches if quantity exceeds one batch's remaining qty
+- Frontend shows available batches for manual override
+
+### Reservation Creation
+
+1. Validate item exists and is_active
+2. Calculate available_qty = total stock qty - sum of active reservation quantities for this item
+3. Validate available_qty >= requested quantity
+4. Create reservation with quantity = remaining_qty
+5. Does NOT modify `sklad_batches` or `sklad_item_locations`
+
+### Inventory Confirm (single Prisma transaction)
+
+1. Validate status is DRAFT
+2. For each inventory line where difference != 0:
+   - If difference > 0 (more stock than system): create a corrective receipt (type: inventory, auto-confirmed)
+   - If difference < 0 (less stock than system): create a corrective issue (type: inventory, auto-confirmed)
+3. Generate `session_number` via `number_sequences` (type: `warehouse_inventory`)
+4. Set status to CONFIRMED
+5. Log audit
+
+---
+
+## Frontend
+
+### Sidebar
+
+Entry in `Sidebar.tsx` with permission `warehouse.view`:
+
+- Icon: package/box icon
+- Label: "Sklad"
+- Path: `/warehouse`
+
+### Pages (lazy-loaded)
+
+| Route                          | Component                | Permission          |
+| ------------------------------ | ------------------------ | ------------------- |
+| `/warehouse`                   | Warehouse                | warehouse.view      |
+| `/warehouse/items`             | WarehouseItems           | warehouse.view      |
+| `/warehouse/items/:id`         | WarehouseItemDetail      | warehouse.view      |
+| `/warehouse/receipts`          | WarehouseReceipts        | warehouse.view      |
+| `/warehouse/receipts/new`      | WarehouseReceiptForm     | warehouse.operate   |
+| `/warehouse/receipts/:id`      | WarehouseReceiptDetail   | warehouse.view      |
+| `/warehouse/receipts/:id/edit` | WarehouseReceiptForm     | warehouse.operate   |
+| `/warehouse/issues`            | WarehouseIssues          | warehouse.view      |
+| `/warehouse/issues/new`        | WarehouseIssueForm       | warehouse.operate   |
+| `/warehouse/issues/:id`        | WarehouseIssueDetail     | warehouse.view      |
+| `/warehouse/issues/:id/edit`   | WarehouseIssueForm       | warehouse.operate   |
+| `/warehouse/reservations`      | WarehouseReservations    | warehouse.view      |
+| `/warehouse/inventory`         | WarehouseInventory       | warehouse.inventory |
+| `/warehouse/inventory/new`     | WarehouseInventoryForm   | warehouse.inventory |
+| `/warehouse/inventory/:id`     | WarehouseInventoryDetail | warehouse.inventory |
+| `/warehouse/reports`           | WarehouseReports         | warehouse.view      |
+| `/warehouse/suppliers`         | WarehouseSuppliers       | warehouse.manage    |
+| `/warehouse/locations`         | WarehouseLocations       | warehouse.manage    |
+| `/warehouse/categories`        | WarehouseCategories      | warehouse.manage    |
+
+### Warehouse Dashboard
+
+- Summary cards: total items, total stock value, below-minimum count, active reservations
+- Below-minimum alert section (highlighted)
+- Recent movements (last 10)
+
+### WarehouseReports
+
+- Tab-based: Stock Status | Project Consumption | Movement Log | Below Minimum
+- Each tab has filters (date range, project, category, supplier)
+- Paginated data tables with sorting
+
+### Key Shared Components
+
+| Component              | Purpose                                                                       |
+| ---------------------- | ----------------------------------------------------------------------------- |
+| ItemPicker             | Searchable item selector (name + catalog number), used in receipt/issue forms |
+| BatchPicker            | FIFO batch selector for issue lines, shows available qty per batch            |
+| LocationSelect         | Location dropdown                                                             |
+| SupplierSelect         | Supplier dropdown                                                             |
+| WarehouseMovementTable | Reusable multi-line editor for receipt/issue lines                            |
+
+### Query Keys
+
+```
+["warehouse"]                              -> invalidates all
+["warehouse", "items", filters]            -> item list
+["warehouse", "items", id]                 -> item detail
+["warehouse", "receipts", filters]         -> receipt list
+["warehouse", "receipts", id]             -> receipt detail
+["warehouse", "issues", filters]           -> issue list
+["warehouse", "issues", id]               -> issue detail
+["warehouse", "reservations", filters]     -> reservation list
+["warehouse", "inventory", filters]        -> inventory sessions
+["warehouse", "inventory", id]             -> inventory detail
+["warehouse", "suppliers", filters]        -> supplier list
+["warehouse", "locations"]                -> location list
+["warehouse", "categories"]               -> category list
+["warehouse", "reports", type, filters]    -> report data
+```
+
+Mutation invalidation: broad `["warehouse"]` for any create/update/delete.
+
+---
+
+## Permissions
+
+| Permission            | Display Name   | Module | Description                                            |
+| --------------------- | -------------- | ------ | ------------------------------------------------------ |
+| `warehouse.view`      | Zobrazit sklad | sklad  | View stock status, items, reports, movement history    |
+| `warehouse.operate`   | Prijem a vydej | sklad  | Create/confirm receipts, issues, reservations          |
+| `warehouse.manage`    | Sprava skladu  | sklad  | Manage items catalog, suppliers, locations, categories |
+| `warehouse.inventory` | Inventura      | sklad  | Create/confirm inventory sessions                      |
+
+---
+
+## Number Sequences
+
+Three new types registered in `number_sequences`:
+
+- `warehouse_receipt` - generated on receipt confirm
+- `warehouse_issue` - generated on issue confirm
+- `warehouse_inventory` - generated on inventory session confirm
+
+Pattern configurable via `company_settings`, same as invoices.
+
+---
+
+## File Storage
+
+Receipt attachments use existing `NasFinancialsManager`:
+
+- Stored under `warehouse/YYYY/MM/` on NAS
+- DB metadata in `sklad_receipt_attachments` (file_name, file_mime, file_size, file_path)
+- Upload via `@fastify/multipart`
+
+---
+
+## File Structure
+
+### New Files
+
+```
+src/
+  routes/admin/warehouse.ts
+  services/warehouse.service.ts
+  schemas/warehouse.schema.ts
+  admin/
+    pages/
+      Warehouse.tsx
+      WarehouseItems.tsx
+      WarehouseItemDetail.tsx
+      WarehouseReceipts.tsx
+      WarehouseReceiptDetail.tsx
+      WarehouseReceiptForm.tsx
+      WarehouseIssues.tsx
+      WarehouseIssueDetail.tsx
+      WarehouseIssueForm.tsx
+      WarehouseReservations.tsx
+      WarehouseInventory.tsx
+      WarehouseInventoryDetail.tsx
+      WarehouseInventoryForm.tsx
+      WarehouseReports.tsx
+      WarehouseSuppliers.tsx
+      WarehouseLocations.tsx
+      WarehouseCategories.tsx
+    lib/queries/warehouse.ts
+    components/warehouse/
+      ItemPicker.tsx
+      BatchPicker.tsx
+      LocationSelect.tsx
+      SupplierSelect.tsx
+      WarehouseMovementTable.tsx
+```
+
+### Modified Files
+
+| File                               | Change                             |
+| ---------------------------------- | ---------------------------------- |
+| `src/server.ts`                    | Import + register warehouse routes |
+| `src/types/index.ts`               | Add 8 EntityType values            |
+| `src/admin/AdminApp.tsx`           | Lazy imports + routes              |
+| `src/admin/components/Sidebar.tsx` | Add warehouse menu entry           |
+| `prisma/schema.prisma`             | Add 13 models + 5 enums            |
+| `prisma/seed.ts`                   | Add 4 permissions                  |
+
+---
+
+## Audit Entity Types
+
+New values added to `EntityType` union in `src/types/index.ts`:
+
+- `warehouse_item`
+- `warehouse_receipt`
+- `warehouse_issue`
+- `warehouse_reservation`
+- `warehouse_inventory`
+- `warehouse_supplier`
+- `warehouse_category`
+- `warehouse_location`
+
+---
+
+## Constraints & Edge Cases
+
+1. **Batch consumption on cancel:** If any batch from a receipt has been partially or fully consumed by an issue, the receipt cannot be cancelled. User must first cancel the consuming issues.
+
+2. **Reservation availability:** Available qty = sum of active batch quantities - sum of active reservation quantities. Reservation creation validates available_qty >= requested.
+
+3. **Location qty consistency:** `sklad_item_locations` is a denormalized cache for quick lookups. It must always stay in sync with `sklad_batches`. The confirm/cancel transactions maintain this.
+
+4. **FIFO spanning batches:** When auto-FIFO selects batches for an issue line and the quantity spans multiple batches, the service creates **multiple issue lines** (one per batch consumed), all under the same issue document. The user's original requested quantity is preserved across the split lines. This works because each `sklad_issue_lines` row has exactly one `batch_id`.
+
+5. **Inventory corrective movements:** On confirm, each line with a difference creates an auto-confirmed receipt or issue. The `notes` field of these corrective documents references the inventory session ID and line, so they can be traced back. These corrective documents are fully audited like manual receipts/issues.
+
+6. **Unit consistency:** Once an item is created with a unit, it cannot be changed if any movements exist. This prevents unit mismatches in stock calculations.

docs/superpowers/specs/2026-06-06-manual-project-order-creation-design.md

@@ -0,0 +1,191 @@
+# Manual project & order creation — design
+
+Date: 2026-06-06
+Status: approved (pending spec review)
+Author: Claude + BOHA
+
+## Problem
+
+Today both entities are only ever _derived_ from a parent:
+
+- A **project** is created solely as a side-effect of `createOrderFromQuotation`
+  (`orders.service.ts`). There is **no** `POST /projects`, no `createProject`
+  service, no `CreateProjectSchema`. A manual-create feature existed but was
+  **removed in commit `82919d3`** (2026-04-28) — the note: _"Projects can only
+  be created through orders (shared numbering sequence)."_ The old code pulled
+  `project_number` from the shared order/project pool, which consumed an order
+  number and left **gaps in order numbering**. That is the bug we must not repeat.
+- An **order** is normally created from an offer. A manual `createOrder`
+  (`orders.service.ts`, offer-less) **already exists** and the route already
+  dispatches to it, but there is **no UI**, and it does not create a project.
+
+We want: (1) manually create projects on `/projects`, (2) manually create
+orders without an offer on `/orders`.
+
+## Decisions (locked with the user)
+
+1. **Project numbering: shared pool, _with_ proper tracking.** Standalone
+   projects take the next **shared** number via `generateSharedNumber()` — the
+   same pool as orders — but we add the tracking/transparency that was missing
+   before (see "Tracking" below). Auto-assigned; no manual number entry.
+2. **Manual order → project: optional checkbox, default ON.** The order form
+   has a pre-checked "Vytvořit propojený projekt"; when set, the order and its
+   project share the order number (identical to the from-offer flow → no gap).
+3. **Order form scope: header only.** Customer, customer order number,
+   currency/VAT, scope title/description, notes. No line-item editor.
+4. **Customer: optional** on both forms (matches the existing nullable schema).
+5. **Match existing house design** — `FormModal` + `FormField`, the
+   `Vehicles.tsx` create/edit-modal pattern, the `OffersCustomers.tsx`
+   header-button + customer-selector pattern, existing list/badge styling.
+
+## Why the shared pool is safe here (the tracking)
+
+The shared sequence is effectively a single "zakázkové číslo" pool. An order and
+its project share one number; a standalone project simply takes the next number
+in that pool and has no order. The mechanics that make this coherent:
+
+- **Collision-safe:** `isSharedNumberTaken()` already checks **both**
+  `orders.order_number` and `projects.project_number`, so the same number can
+  never be issued twice across the pool (`numbering.service.ts:161-167`).
+- **Atomic:** `createProject` wraps `generateSharedNumber(tx)` in
+  `prisma.$transaction` — the existing `SELECT … FOR UPDATE` lock
+  (`getNextSequence`) serialises concurrent consumers.
+- **Release on delete:** `deleteProject` already calls `releaseSharedNumber`,
+  which decrements the sequence only if the deleted number is the current
+  highest — so deleting a standalone project doesn't leave a permanent tail-gap
+  (`numbering.service.ts:116-158, 319-328`).
+- **Audit trail:** `logAudit` on create/delete records the number in
+  `newValues`/`oldValues`, so every consumed pool number has a "who/when/what"
+  trail showing it went to a project (not a lost order).
+- **UI transparency:** the Projects list shows a badge — **"z objednávky"**
+  (order-linked, `order_id != null`) vs **"samostatný"** (standalone) — so a
+  pool number with no order reads as intentional. The create form previews the
+  number it is about to assign (`previewSharedNumber()`).
+
+## Part A — Manual projects
+
+### Backend
+
+- **`src/schemas/projects.schema.ts`** — add `CreateProjectSchema`
+  (`z.strictObject`, shared coercers from `schemas/common.ts`, Czech messages):
+  - `name` — required, `z.string().min(1)`.
+  - `customer_id` — optional number (coerced, NaN-guarded).
+  - `responsible_user_id` — optional number.
+  - `status` — optional, default `"aktivni"`.
+  - `start_date`, `end_date` — optional date strings.
+  - `notes` — optional string.
+  - **No** `project_number` field (auto-assigned from the pool).
+- **`src/services/projects.service.ts`** — add `createProject(data)`:
+  - `prisma.$transaction(async (tx) => …)`: `project_number = await
+generateSharedNumber(tx)`; `tx.projects.create({ … order_id: null,
+quotation_id: null, status: data.status ?? "aktivni", … })`.
+  - Validate `customer_id` / `responsible_user_id` exist (when provided) →
+    return `{ error, status: 400 }` (Czech) if not.
+  - After commit: `nasFileManager.createProjectFolder(number, name)` when
+    `isConfigured()` — non-fatal, logged on failure (mirrors the old code).
+  - Return `{ data: project }` (or `{ error, status }`).
+- **`src/routes/admin/projects.ts`**:
+  - `POST /` guarded by `requirePermission("projects.create")` →
+    `parseBody(CreateProjectSchema, …)` → `createProject` → `logAudit`
+    (`action: "create"`, `entityType: "project"`, `newValues`) →
+    `success(reply, project, 201, "Projekt vytvořen")`.
+  - `GET /next-number` guarded by `projects.create` → `previewSharedNumber()` →
+    `success(reply, { number })`. (Preview only; does not consume.)
+
+### Frontend (`src/admin/pages/Projects.tsx` + new modal)
+
+- Header **"Přidat projekt"** button, gated on `hasPermission("projects.create")`,
+  matching the `OffersCustomers.tsx` "Přidat zákazníka" header-button pattern.
+- A project create `FormModal` (house pattern from `Vehicles.tsx`): `FormField`
+  rows for name (required), customer (select from customers list), responsible
+  user (select from `userListOptions`), status, start/end dates, notes, plus a
+  read-only "Číslo projektu: `<preview>` (přiděleno automaticky)" line fetched
+  from `GET /projects/next-number` when the modal opens.
+- `useApiMutation` POST `/api/admin/projects`; on success invalidate
+  **`["projects"]`** (broad domain key, per the invalidation convention) and
+  close modal; surface server errors via `useAlert`.
+- List: add the **"z objednávky" / "samostatný"** badge (derive from
+  `order_id`). Update the empty-state text (currently "Projekt se vytvoří
+  automaticky při vytvoření objednávky") to mention manual creation.
+
+## Part B — Manual orders (header only, optional project)
+
+### Backend
+
+- **`src/schemas/orders.schema.ts`** — add `create_project` to
+  `CreateOrderSchema`: boolean via the existing `preprocess(v => v === true || v
+=== 1 || v === "1")` idiom, `.optional().default(true)`. (Only the manual path
+  uses this schema; the from-quotation path uses `CreateOrderFromQuotationSchema`.)
+- **`src/services/orders.service.ts` `createOrder`** — inside the existing
+  transaction, after the order is created, when `body.create_project` is true and
+  there is no quotation link: `tx.projects.create({ project_number: orderNumber,
+order_id: order.id, customer_id: order.customer_id, name: scope_title ??
+customer_order_number ?? orderNumber, status: "aktivni" })` — mirrors
+  `createOrderFromQuotation`'s project block, so order + project share the number.
+  Return the project id so the route can audit it.
+- **`src/routes/admin/orders.ts`** — the manual `POST /` branch already exists
+  (`orders.create`); add a second `logAudit` for the created project when present.
+
+### Frontend (`src/admin/pages/Orders.tsx` + new modal)
+
+- Header **"Vytvořit objednávku"** button, gated on `orders.create`.
+- Header-only `FormModal`: customer (select), customer order number, currency,
+  VAT rate + apply-VAT, language, scope title, scope description, notes, and a
+  pre-checked **"Vytvořit propojený projekt"** checkbox. Read-only next
+  order-number preview via the existing `GET /api/admin/orders/next-number`.
+- POST `/api/admin/orders` (no `quotationId`); on success invalidate
+  **`["orders"]`** and **`["projects"]`**; errors via `useAlert`.
+
+## Part C — Permissions
+
+`projects.create` was removed from the permission set and must come back the
+**migration** way (per CLAUDE.md — never seed-only for prod data):
+
+- New migration `prisma/migrations/<ts>_add_projects_create_permission/` that
+  `INSERT`s the `projects.create` permission row and grants it to the **admin**
+  role (mirror `20260603230000_add_warehouse_permissions/migration.sql`). Use
+  `INSERT … ON DUPLICATE KEY UPDATE` / `INSERT IGNORE` style so re-runs are safe.
+- Add `projects.create` to the `PERMISSIONS` array in `prisma/seed.ts` (dev).
+- `orders.create` already exists — no change.
+
+## Part D — Tests (`src/__tests__/`)
+
+Real-DB Vitest (no Prisma mocks), following `numbering.test.ts` style:
+
+- `createProject` assigns the next shared number, increments the `shared`
+  sequence by exactly 1, sets `order_id = null`, writes an audit row.
+- `createOrder` with `create_project: true` creates an order **and** a project
+  sharing one `order_number`/`project_number`.
+- Interleaved coherence: order → standalone project → order produces three
+  consecutive shared numbers with no duplicates (the tracking guarantee).
+- `createOrder` with `create_project: false` creates only the order.
+
+## Error handling
+
+- Service returns `{ error, status }` (Czech) for bad customer/user FK and
+  numbering exhaustion (the `generateSharedNumber` 100-retry throw → mapped to a
+  500 with a Czech message by the route, logged via `app.log.error`).
+- NAS folder creation is non-fatal and logged (never blocks creation).
+
+## Out of scope (v1) — noted for later
+
+- Editing order line-items after creation.
+- Attaching a standalone project to an order later (conflicts with current
+  `order_id` immutability + the `has_order` delete guard).
+- Manual project-number override (user chose auto-from-pool).
+- A unified order+project number lookup/search.
+
+## Affected files (summary)
+
+- `src/schemas/projects.schema.ts` (add `CreateProjectSchema`)
+- `src/schemas/orders.schema.ts` (add `create_project`)
+- `src/services/projects.service.ts` (add `createProject`)
+- `src/services/orders.service.ts` (`createOrder` optional project)
+- `src/routes/admin/projects.ts` (`POST /`, `GET /next-number`)
+- `src/routes/admin/orders.ts` (audit project on manual order)
+- `src/admin/pages/Projects.tsx` (+ create modal, badge, empty-state)
+- `src/admin/pages/Orders.tsx` (+ create modal)
+- `src/admin/lib/queries/projects.ts`, `orders.ts` (mutations/preview queries)
+- `prisma/migrations/<ts>_add_projects_create_permission/migration.sql`
+- `prisma/seed.ts` (+ `projects.create`)
+- `src/__tests__/manual-create.test.ts` (new)

docs/superpowers/specs/2026-06-06-plan-categories-management-design.md

@@ -0,0 +1,191 @@
+# Plan Categories Management — Design Spec
+
+Date: 2026-06-06
+Status: Approved (approach A)
+Area: Work Plan (`/plan-work`)
+
+## Goal
+
+Let managers (`attendance.manage`) **create, rename, recolor, and retire** the
+categories used by the work plan, via a "Správa kategorií" button above the
+calendar that opens a form modal with a per-category color picker. Categories
+become data, not a hardcoded enum.
+
+## Current state (what's hardcoded today)
+
+- DB: `plan_category` **enum** (`work, preparation, travel, leave, sick,
+training, other`) used by `work_plan_entries.category` and
+  `work_plan_overrides.category` (both `NOT NULL`).
+- Validation: `planCategoryEnum` in `src/schemas/plan.schema.ts`.
+- Frontend labels: `PLAN_CATEGORIES` / `planCategoryLabel` in
+  `src/admin/lib/queries/plan.ts`.
+- Colors: per-category CSS variables `--plan-tape-<key>` in `src/admin/plan.css`,
+  applied via `.plan-cell:has(.plan-chip--<key>)::before` (left "tape" bar) and
+  `.plan-chip--<key>` (chip text/border/background via `color-mix`). 14 rules.
+- Server audit: `PLAN_CATEGORY_LABELS_CS` in `src/utils/planAuditDescription.ts`.
+- A decorative paper-grain gradient (`plan.css` ~lines 102–107) tints the page
+  background with `--plan-tape-work` / `--plan-tape-training` at 5%. This is
+  cosmetic and **not** category-semantic.
+
+## Approach (A)
+
+Introduce a `plan_categories` table. Keep the entry/override `category` column
+as a **string key** (slug) referencing `plan_categories.key`. Change the column
+type from the enum to `VARCHAR(50)`; existing values are preserved verbatim.
+"Remove" means **deactivate** (`is_active = false`), never hard-delete, so
+historical entries keep resolving their label and color.
+
+Rejected: a real FK `category_id` (needs per-row backfill + read/write churn for
+no user-visible benefit); keeping the enum (can't add categories).
+
+## Data model
+
+New table `plan_categories`:
+
+| column     | type         | notes                                        |
+| ---------- | ------------ | -------------------------------------------- |
+| id         | INT PK AI    |                                              |
+| key        | VARCHAR(50)  | UNIQUE, slug, immutable after create         |
+| label      | VARCHAR(100) | Czech display name, editable                 |
+| color      | VARCHAR(7)   | `#RRGGBB`                                    |
+| sort_order | INT          | display order; new categories append (max+1) |
+| is_active  | BOOLEAN      | default true; false = retired                |
+| created_at | DATETIME     | default now                                  |
+| updated_at | DATETIME     | auto                                         |
+
+Column change: `work_plan_entries.category` and `work_plan_overrides.category`
+`plan_category` → `VARCHAR(50) NOT NULL`. Drop the `plan_category` enum from the
+Prisma schema once no column uses it.
+
+## Migration (one tracked Prisma migration)
+
+`npx prisma migrate dev --name plan_categories` (requires dev server stopped —
+ask the user first per CLAUDE.md). The generated `migration.sql` will:
+
+1. `CREATE TABLE plan_categories (...)`.
+2. `ALTER` the two `category` columns enum → `VARCHAR(50)`.
+3. `INSERT` the 7 seed rows (so production gets them — not seed-only, per the
+   migration policy). Seed values (key, label, color, sort_order):
+
+   | key         | label          | color   | sort |
+   | ----------- | -------------- | ------- | ---- |
+   | work        | Práce          | #2563eb | 1    |
+   | preparation | Příprava       | #0d9488 | 2    |
+   | travel      | Cesta / Montáž | #ca8a04 | 3    |
+   | leave       | Dovolená       | #16a34a | 4    |
+   | sick        | Nemoc          | #dc2626 | 5    |
+   | training    | Školení        | #7c3aed | 6    |
+   | other       | Jiné           | #6b7280 | 7    |
+
+After: `npx prisma generate`, commit schema + migration folder.
+
+## API — `/api/admin/plan/categories`
+
+All under the existing plan route file group.
+
+- `GET /` — returns **all** categories (active + inactive), ordered by
+  `sort_order, id`. Readable by `attendance.record` OR `attendance.manage`
+  (every grid viewer needs labels/colors, including for retired categories on
+  historical entries).
+- `POST /` — create. `attendance.manage`. Body: `{ label, color }`. `key` is
+  auto-slugged from `label` (ASCII, lowercased, deduped); `sort_order = max+1`.
+- `PATCH /:id` — update `label` / `color` / `is_active`. `attendance.manage`.
+  `key` is immutable.
+- `DELETE /:id` — deactivate (`is_active = false`). `attendance.manage`.
+
+Service layer: `src/services/planCategory.service.ts` (plain async functions,
+`{ data }` / `{ error, status }` envelope). Audit-logged via `logAudit` with a
+new entity type `plan_category` (add to `EntityType` and the AuditLog +
+dashboard `ENTITY_TYPE_LABELS` maps, e.g. "Plán prací – kategorie").
+
+Validation (`src/schemas/plan.schema.ts` or a new `planCategory.schema.ts`):
+
+- `label`: required, 1–100 chars, trimmed.
+- `color`: regex `^#[0-9a-fA-F]{6}$`.
+- `is_active`: boolean (PATCH only).
+- Entry/override create/update: `category` becomes `z.string().min(1)`; the
+  **service** validates the key exists and `is_active` (reject unknown/inactive
+  with a Czech 400).
+
+## Validation rules / edge cases
+
+- **Slug collision:** if the slug derived from a new label already exists,
+  append `-2`, `-3`, … Keys are never shown to users.
+- **At least one active category:** deactivating the last active category is
+  rejected (Czech 400) so the create form is never empty.
+- **Deactivate in use:** allowed. Existing entries keep their key; the category
+  still renders (GET returns inactive ones) but is hidden from the create
+  `<select>`.
+- **Rename/recolor:** applies to all entries with that key (reference is by
+  key) — this is the desired "recolor everywhere" behavior.
+- **No hard delete** in this iteration (deactivate only). Possible later
+  enhancement: allow hard-delete when zero entries reference the key.
+
+## Frontend
+
+- **Button** "Správa kategorií" in `PlanWork.tsx` header, rendered only when
+  `hasPermission("attendance.manage")`.
+- **Modal** (`PlanCategoriesModal.tsx`, uses `FormModal`): a row per category =
+  `label` text input + native `<input type="color">` swatch + active toggle (or
+  a "retire/restore" control), plus an "add category" row (label + color +
+  add). Mutations invalidate `["plan", "categories"]` **and** `["plan"]` (so the
+  grid recolors) and `["dashboard"]`/`["audit-log"]` (audit feed).
+- **Category query** `["plan","categories"]` loaded in `PlanWork`, passed to the
+  grid and cell modal. The create/edit plan `<select>` lists **active**
+  categories from this query (replacing hardcoded `PLAN_CATEGORIES`); display
+  uses the **full** map (so retired categories still render).
+- `planCategoryLabel` becomes a lookup into the categories map (with raw-key
+  fallback). `PLAN_CATEGORIES` constant is removed.
+
+## Color rendering (the notable refactor)
+
+Replace the 14 hardcoded per-key rules with a generic, custom-property-driven
+treatment:
+
+- `PlanGrid` sets `style={{ "--cat-color": color }}` on the `.plan-cell`
+  `<button>` when the cell has a category (`color` from the categories map). The
+  custom property cascades to the chip and is available to the cell's `::before`
+  tape.
+- `plan.css`:
+  - `.plan-cell::before` tape uses
+    `background: var(--cat-color, var(--plan-tape-other))` — the graphite
+    `#6b7280` is the defensive neutral fallback when a cell has no category
+    color (replaces the seven `:has(.plan-chip--<key>)::before` rules).
+  - `.plan-chip` (generic) uses `color: var(--cat-color)`,
+    `border-color: color-mix(in srgb, var(--cat-color) 35%, transparent)`,
+    `background: color-mix(in srgb, var(--cat-color) 10%, var(--plan-paper))`
+    (replaces the seven `.plan-chip--<key>` rules).
+- Visual output is identical for the existing 7; new categories work with no CSS
+  changes.
+- The decorative paper-grain gradient stays static (keep two literal colors or
+  the two `--plan-tape-*` vars it needs); it is not category-semantic.
+
+## Audit description
+
+`src/services/plan.service.ts` builds the audit description with the category
+label. Since labels now live in the DB, resolve the label from `plan_categories`
+by key (alongside the existing `resolvePlanLabels` lookups) and pass the plain
+label into `buildPlanAuditDescription`. `src/utils/planAuditDescription.ts`'s
+`buildPlanAuditDescription` stays pure (receives the resolved label);
+`PLAN_CATEGORY_LABELS_CS`/`planCategoryLabel` there are removed or reduced to a
+fallback.
+
+## Testing
+
+Vitest (real DB, per project convention):
+
+- `planCategory.service` CRUD: create (slug generation, sort_order), update
+  (label/color/active), deactivate, and the "last active category" guard.
+- Color/label validation rejects bad hex and empty label.
+- Entry create accepts an active key and rejects an unknown/inactive key.
+
+## Out of scope (YAGNI)
+
+- Per-category icons.
+- Drag-to-reorder (order by `sort_order, id`; new categories append).
+- Hard delete of unused categories (deactivate only).
+
+## Assumptions to confirm
+
+- "Remove" = deactivate (history preserved). ✅ implied by approach A.
+- Native browser color picker (`<input type="color">`), not a custom palette.

docs/superpowers/specs/2026-06-08-ai-assistant-phase1-design.md

@@ -0,0 +1,190 @@
+# Design — AI assistant, Phase 1 (chat + invoice import + budget cap)
+
+**Date:** 2026-06-08
+**Status:** Approved (brainstorming) — ready for implementation plan
+**Phase 1 of 2.** Phase 2 (the AI querying system data via read-tools) is a separate later cycle — see "Deferred: Phase 2" at the end.
+
+---
+
+## Goal
+
+Add the app's first AI capability: an **admin-only chat assistant embedded on the
+dashboard** where you can talk to Claude and, crucially, **attach received-invoice
+PDFs that the AI reads and imports into Přijaté faktury** (extract → you confirm →
+save). All AI usage is bounded by an **admin-editable monthly budget (default
+$50)** that hard-stops calls when exhausted.
+
+## Decisions (locked in brainstorming)
+
+- **Scope (Phase 1):** chat + invoice import + budget cap. **No system-data
+  access** (the AI cannot query your invoices/projects/attendance — that's Phase 2).
+- **Placement:** a `DashAssistant` widget on the **dashboard, at the top under the
+  welcome text** — not a separate page, not a floating bubble.
+- **Access:** **admins only**, via a new `ai.use` permission.
+- **Model:** **Claude Sonnet 4.6** (strong vision, low cost).
+- **Save flow:** extract → **you confirm/edit → save** (never silent auto-save).
+- **Budget:** **$50/month**, resets each calendar month, **admin-editable in
+  Settings**; AI calls are **blocked** once the month's spend reaches the budget.
+- **Chat:** **non-streaming** (request → full reply) and **in-browser history
+  only** (not persisted server-side) for v1 — both are easy later upgrades.
+
+## Non-goals / out of scope (Phase 1)
+
+- No system-data query tools / function-calling (Phase 2).
+- No server-side conversation persistence, no streaming.
+- No new invoice storage path — reuses `POST /received-invoices` verbatim.
+
+---
+
+## Architecture
+
+Greenfield AI integration; the rest of the app is unaffected and works unchanged
+if `ANTHROPIC_API_KEY` is absent (the assistant widget simply doesn't render and
+the AI routes return a clear "not configured" error).
+
+- **Dependency:** `@anthropic-ai/sdk`.
+- **Env:** `ANTHROPIC_API_KEY` (required for the feature). Optional
+  `AI_MONTHLY_BUDGET_USD` default seed (the live value lives in the DB, below).
+- **`src/services/ai.service.ts`** — wraps the SDK, owns the model choice + system
+  prompt + cost accounting. Two operations:
+  - `chat(messages)` → `client.messages.create({ model: "claude-sonnet-4-6", … })`,
+    non-streaming, returns `{ reply: string, usage }`.
+  - `extractInvoice(pdfBuffer, fileName)` → `client.messages.create` with the PDF as
+    a `document` content block + `output_config.format` JSON-schema for the
+    received-invoice fields, returns `{ fields, usage }`.
+  - Both call the spend tracker to record usage **and** are gated by the budget
+    guard (below) BEFORE the API call.
+  - Isolated so tests can stub the Anthropic call (no real API in CI).
+
+## Spend cap (the $50/month budget)
+
+- **New table `ai_usage`** (migration): `id`, `user_id?`, `kind` ("chat" |
+  "extract"), `model`, `input_tokens`, `output_tokens`, `cost_usd`
+  `@db.Decimal(10,6)`, `created_at @db.Timestamp(0)`, with an index on
+  `created_at`.
+- **Cost map** (in `ai.service.ts`): model → `{ inputPerToken, outputPerToken }`.
+  Sonnet 4.6 = $3 / $15 per 1M → `0.000003` / `0.000015` per token. `cost_usd =
+in*inP + out*outP`.
+- **Budget value:** a new `ai_monthly_budget_usd Decimal @default(50)` column on
+  `company_settings` (the existing app-config singleton). Admin-editable in
+  Settings.
+- **Budget guard `assertBudgetAvailable()`:** sum `cost_usd` for rows where
+  `created_at >= startOfMonth(now)`; if `>= ai_monthly_budget_usd`, return
+  `{ error: "Měsíční rozpočet AI byl vyčerpán", status: 402 }`. Called at the top
+  of every AI route BEFORE the Claude call.
+- **Usage read:** `GET /api/admin/ai/usage` → `{ month_spend_usd, budget_usd,
+remaining_usd }` for the chat's budget indicator and the Settings page.
+
+## Backend routes — `src/routes/admin/ai.ts`
+
+All guarded by `requirePermission("ai.use")`.
+
+- `POST /api/admin/ai/chat` — body `{ messages: {role, content}[] }`. Budget guard →
+  `ai.service.chat` → log usage → `success(reply: string, remaining_usd)`.
+- `POST /api/admin/ai/extract-invoices` — multipart PDF files (≤ `MAX_UPLOAD_SIZE`,
+  PDF/image only). Budget guard → `extractInvoice` per file → returns the extracted
+  fields per file (NOT saved) + usage. The files are **not** persisted here.
+- `GET /api/admin/ai/usage` — current-month spend + budget + remaining.
+
+If `ANTHROPIC_API_KEY` is unset, the POST routes return
+`{ error: "AI není nakonfigurováno", status: 503 }`.
+
+## Invoice import flow (extract → confirm → save)
+
+1. Admin attaches one or more invoice PDFs in the dashboard chat (optionally with a
+   text note).
+2. Frontend posts the files to `POST /ai/extract-invoices`; the AI returns the
+   extracted fields for each.
+3. The chat renders an **editable review card per invoice** (dodavatel, číslo
+   faktury, částka, měna, sazba DPH, datum vystavení/splatnosti, poznámka),
+   pre-filled with the AI's values, plus a duplicate hint if `invoice_number` +
+   `supplier_name` already exists.
+4. Admin glances/edits → **"Uložit"** (per card) or **"Uložit vše"**.
+5. The frontend submits **the original File + the confirmed metadata** to the
+   **existing `POST /api/admin/received-invoices`** (multipart) — same NAS storage,
+   same server-side VAT recompute, same audit. The AI never writes invoices
+   directly. (The PDF is uploaded twice — once to extract, once to save — which is
+   fine for invoice-sized files and avoids any server-side temp-file handling.)
+
+## Frontend
+
+- **`src/admin/components/dashboard/DashAssistant.tsx`** — the chat widget:
+  message list, input box, attach-file button, and a small budget indicator
+  ("Rozpočet: $X.XX / $50"). Non-streaming; conversation in component state only.
+  Renders the invoice review cards inline (reusing the received-invoice field
+  inputs / kit components).
+- **`src/admin/pages/Dashboard.tsx`** — render `<DashAssistant />` at the top,
+  directly under the welcome text, **only when** the user is admin / has `ai.use`
+  (and only when AI is configured — a `GET /ai/usage` 503 hides it gracefully).
+- **`src/admin/lib/queries/ai.ts`** — React Query options/mutations for chat,
+  extract, and usage. On a successful invoice save, invalidate `["received-invoices"]`.
+- **Settings** — an admin field to set the monthly budget (writes
+  `company_settings.ai_monthly_budget_usd`).
+
+## Permissions & migration
+
+One Prisma migration:
+
+- Create `ai_usage` table.
+- Add `ai_monthly_budget_usd` to `company_settings` (default 50).
+- Insert the `ai.use` permission and grant it to the **admin** role (explicit
+  `INSERT`s in `migration.sql`, per the project's migration policy).
+
+(The admin role bypasses permission checks via `roleName === "admin"`, but the
+explicit `ai.use` permission lets the access be widened later without code changes
+and documents intent.)
+
+## Security / privacy
+
+- **Phase 1 has no tools**, so the AI cannot take actions on your data — its only
+  effect is the human-confirmed invoice save. A malicious/auto-generated invoice
+  PDF therefore can't trigger anything (the injection-to-action surface arrives in
+  Phase 2 and is designed there).
+- Attached PDFs are sent to the Anthropic API to be read. The API key lives in
+  `.env` (server-side only), never exposed to the browser.
+- Standard sanitization already applies on the received-invoice render/PDF paths;
+  AI-extracted text flows through the same validated `received_invoices` create.
+
+## Testing
+
+Server-side, real test DB, **Anthropic call stubbed** (no real API in CI):
+
+- **Spend tracker:** `cost_usd` computed correctly from tokens for Sonnet 4.6;
+  monthly sum only counts the current month.
+- **Budget guard:** under budget → allowed; at/over budget → `402` with the Czech
+  message; the guard reads the DB budget value.
+- **Permissions:** all `/ai/*` routes return `403` without `ai.use`.
+- **Not-configured:** with no `ANTHROPIC_API_KEY`, POST routes return `503`.
+- **extract field-mapping:** given a stubbed AI response, the route returns the
+  expected `received_invoices` field shape (and computes nothing that the existing
+  create doesn't already).
+
+Frontend has no component-test harness → gated by `tsc -b` + `build` + a manual
+check (the dashboard widget renders for admins, hidden otherwise).
+
+Gates: `npx tsc -b --noEmit`, `npm run build`, `npx vitest run`.
+
+## Rollout
+
+Ships as **v2.1.0** (notable new capability) via the standard process. **Requires a
+migration**, so the dev server must be stopped for `prisma migrate dev` (ask first),
+and the release runs `prisma migrate deploy` on prod. `ANTHROPIC_API_KEY` must be
+set in the production `.env` before the feature works.
+
+---
+
+## Deferred: Phase 2 (system-data access) — captured
+
+A later, separate spec + cycle. The AI gains **read-only tools** (function calling)
+to answer questions about your data — e.g. "co je po splatnosti?", "kolik jsme
+fakturovali v květnu?". Key design work for Phase 2:
+
+- A curated set of **read tools** (search invoices, overdue list, project lookup,
+  attendance summary, …), each **scoped to the calling user's permissions** so the
+  AI never returns data the user can't see.
+- The **agentic tool-loop** (Claude requests a tool → app executes against Prisma →
+  returns results → Claude continues), with a per-conversation tool-call cap to
+  bound cost (within the same monthly budget).
+- **Prompt-injection hardening:** because the AI will both read untrusted invoice
+  content _and_ hold tools, tools stay **read-only**, results are treated as data,
+  and any state-changing action remains human-confirmed.

docs/superpowers/specs/2026-06-08-odin-conversations-design.md

@@ -0,0 +1,218 @@
+# Odin — Multi-Conversation AI Chat — Design
+
+**Date:** 2026-06-08
+**Status:** Approved (design), pending spec review
+
+## Goal
+
+Replace the single-thread Odin assistant with a multi-conversation chat: a
+purpose-built UI on the `/odin` page where the user keeps several named
+conversations (like topics), switches between them via top tabs, and can
+rename or delete them. All existing assistant capabilities (chat, PDF invoice
+extraction → review → save, monthly budget) carry over unchanged.
+
+## Background (current state)
+
+- `ai_chat_messages` is a single rolling thread per user (`user_id, role,
+content, created_at`). Endpoints `GET/POST/DELETE /api/admin/ai/history`
+  read/append/clear that one thread.
+- The chat lives in `DashAssistant.tsx`, rendered on the `/odin` page (moved
+  off the dashboard in the prior change, branch `feat/odin-page`).
+- Stateless AI endpoints (`/chat`, `/extract-invoices`, `/usage`, `/budget`)
+  are unaffected by conversations — they don't persist anything themselves.
+
+## Decisions (from brainstorming)
+
+- **Titling:** new conversation auto-titles from its first user message; user
+  can rename.
+- **Per-conversation actions:** rename + delete.
+- **Existing history:** migrate the current single thread into one conversation
+  per user ("keep as first conversation"); nothing is lost.
+- **Layout:** top tabs + chat (not a left sidebar).
+
+## Data model
+
+### `ai_conversations` (new)
+
+| column     | type                  | notes                               |
+| ---------- | --------------------- | ----------------------------------- |
+| id         | INT PK AUTO_INCREMENT |                                     |
+| user_id    | INT NOT NULL          | owner; isolation key                |
+| title      | VARCHAR(255) NOT NULL | default "Nová konverzace"           |
+| created_at | TIMESTAMP(0) NOT NULL | default CURRENT_TIMESTAMP           |
+| updated_at | TIMESTAMP(0) NOT NULL | bumped on each append; sort/recency |
+
+Index: `idx_ai_conv_user (user_id, id)`.
+
+### `ai_chat_messages` (modified)
+
+- Add `conversation_id INT NOT NULL` (FK → `ai_conversations(id)` `ON DELETE
+CASCADE`). Keep `user_id` (denormalized, harmless; simplifies cleanup).
+- Replace index `idx_ai_chat_user (user_id, id)` with
+  `idx_ai_chat_conv (conversation_id, id)` (messages are read per conversation).
+
+### Prisma
+
+```prisma
+model ai_conversations {
+  id         Int      @id @default(autoincrement())
+  user_id    Int
+  title      String   @db.VarChar(255)
+  created_at DateTime @default(now()) @db.Timestamp(0)
+  updated_at DateTime @default(now()) @updatedAt @db.Timestamp(0)
+  messages   ai_chat_messages[]
+
+  @@index([user_id, id], map: "idx_ai_conv_user")
+}
+
+model ai_chat_messages {
+  id              Int              @id @default(autoincrement())
+  user_id         Int
+  conversation_id Int
+  role            String           @db.VarChar(20)
+  content         String           @db.Text
+  created_at      DateTime         @default(now()) @db.Timestamp(0)
+  conversation    ai_conversations @relation(fields: [conversation_id], references: [id], onDelete: Cascade)
+
+  @@index([conversation_id, id], map: "idx_ai_chat_conv")
+}
+```
+
+### Migration (hand-written SQL; one tracked migration)
+
+1. `CREATE TABLE ai_conversations (...)`.
+2. `ALTER TABLE ai_chat_messages ADD COLUMN conversation_id INT NULL AFTER user_id`.
+3. Backfill one conversation per user who has messages:
+   `INSERT INTO ai_conversations (user_id, title, created_at, updated_at)
+ SELECT user_id, 'Konverzace', NOW(), NOW() FROM ai_chat_messages GROUP BY user_id;`
+4. Point messages at it:
+   `UPDATE ai_chat_messages m JOIN ai_conversations c ON c.user_id = m.user_id
+ SET m.conversation_id = c.id;`
+5. Drop the old index, enforce NOT NULL, add the FK + new index:
+   `ALTER TABLE ai_chat_messages DROP INDEX idx_ai_chat_user,
+ MODIFY conversation_id INT NOT NULL,
+ ADD CONSTRAINT fk_ai_chat_conv FOREIGN KEY (conversation_id)
+   REFERENCES ai_conversations(id) ON DELETE CASCADE,
+ ADD INDEX idx_ai_chat_conv (conversation_id, id);`
+
+The backfill is a no-op when `ai_chat_messages` is empty (prod today), and
+preserves the dev thread.
+
+## Service layer (`ai.service.ts`)
+
+Replace the single-thread helpers (`getChatHistory` / `appendChatMessages` /
+`clearChatHistory`) with conversation-scoped ones. Every function takes
+`userId` and verifies the conversation belongs to the user.
+
+- `listConversations(userId)` → `{id, title, updated_at}[]`, ordered by `id` asc
+  (stable tab order).
+- `createConversation(userId, title?)` → the new conversation (default title
+  "Nová konverzace").
+- `getConversation(userId, id)` → conversation or null (ownership check helper).
+- `getConversationMessages(userId, id)` → `StoredChatMessage[]` oldest→newest,
+  or `{ error, status }` if not owned/found.
+- `appendConversationMessages(userId, id, msgs)` → append; **bump `updated_at`**;
+  **auto-title**: if the conversation's title is still the default and this batch
+  has a user message, set `title` = first ~60 chars of that user message.
+- `renameConversation(userId, id, title)` / `deleteConversation(userId, id)` —
+  ownership-checked; delete cascades messages.
+
+Auto-title keeps titling server-side and robust (no client title logic).
+
+## Routes (`routes/admin/ai.ts`, all `requirePermission("ai.use")`)
+
+| Method | Path                          | Body / result                              |
+| ------ | ----------------------------- | ------------------------------------------ |
+| GET    | `/conversations`              | → `{ conversations: [...] }`               |
+| POST   | `/conversations`              | `{ title? }` → `{ conversation }`          |
+| GET    | `/conversations/:id/messages` | → `{ messages: [...] }` (404 if not owned) |
+| POST   | `/conversations/:id/messages` | `{ messages:[{role,content}] }` (1..20)    |
+| PATCH  | `/conversations/:id`          | `{ title }` (1..255)                       |
+| DELETE | `/conversations/:id`          | → `{ ok: true }`                           |
+
+`:id` parsed via `parseId`; bodies via `parseBody`; ownership 404 from the
+service surfaced with `error(reply, ...)`. The old `/history` routes are removed.
+`/chat`, `/extract-invoices`, `/usage`, `/budget` are unchanged.
+
+## Frontend
+
+### Queries (`lib/queries/ai.ts`)
+
+- `aiConversationsOptions()` → `["ai","conversations"]`, `GET /conversations`.
+- `aiConversationMessagesOptions(id)` → `["ai","conversation",id,"messages"]`,
+  `GET /conversations/:id/messages`, `gcTime: 0` (each mount re-reads the DB,
+  same rationale as today: no stale-cache resurrection).
+- Types: `Conversation { id, title, updated_at }`, reuse `StoredChatMessage`.
+
+### Components (`src/admin/components/odin/`)
+
+- **`OdinChat.tsx`** — orchestrator. Owns: active conversation id, input, busy,
+  staged attachments, review list. Loads the conversation list; ensures one
+  exists (creates a default if the user has none); loads the active thread;
+  routes send/extract/save through the active conversation. Full-height flex
+  layout: header → tabs → thread (flex-grow, scroll) → review → composer.
+- **`OdinTabs.tsx`** — horizontally-scrollable tabs (one per conversation) +
+  a "+" new-chat button + a ⋮ menu on the active tab (Přejmenovat / Smazat).
+  Rename uses a small Modal with a text field; delete uses ConfirmDialog.
+- **`OdinThread.tsx`** — message list with an Odin avatar on assistant turns,
+  user turns right-aligned; the "Pracuji…" indicator; empty-state greeting.
+  (Message text colour set on the `Typography` — GlobalStyles pins `p` to
+  text.secondary.)
+- **`InvoiceReviewCard.tsx`** — the editable extract card (supplier, number,
+  Částka s DPH, měna, sazba, dates, popis) + Uložit / Zahodit.
+- **`OdinComposer.tsx`** — staged-attachment chips + attach button + message
+  field (Enter to send) + send button; disabled until the active thread loads.
+
+`DashAssistant.tsx` is deleted; `pages/Odin.tsx` renders `OdinChat`.
+
+### Data flow
+
+1. Mount → load `aiConversationsOptions`. If empty, `POST /conversations` to
+   create a default and select it; else select the first (or last-active).
+2. Selecting a tab sets the active id → `aiConversationMessagesOptions(id)`
+   loads that thread into the displayed turns (seed-once per id; submit marks
+   the thread live so a late load can't clobber — same guard as today).
+3. **Send (chat):** optimistic user turn → `POST /chat` → append assistant
+   reply → `POST /conversations/:id/messages` persists both → bump usage. On
+   error: roll back, keep input.
+4. **Send (attachments):** `POST /extract-invoices` → review cards →
+   client-side summary turn → persist the user+summary turns. Save a card →
+   `POST /received-invoices` (gross/VAT-inclusive, unchanged).
+5. **New / rename / delete** → mutations that invalidate `["ai","conversations"]`
+   (and reset the active id appropriately on delete).
+
+### Reuse
+
+All proven logic carries over verbatim: staged-attach (no auto-send), the three
+bug fixes (no clear-on-error, rollback dangling turn, stable ids — `nextUid`,
+NOT `crypto.randomUUID`), the model-context trimming (last 20, leading-user),
+budget indicator, gross/VAT save. The only structural change is "one thread" →
+"active conversation thread", plus the tab/CRUD shell.
+
+## Error handling
+
+- Ownership: service returns `{ error: "Konverzace nenalezena", status: 404 }`
+  for a conversation the user doesn't own; routes surface it. No cross-user read
+  or write is possible (every query filters by `user_id`).
+- Persistence is best-effort and logged (never swallowed), as today.
+- Auto-create-default and create/rename/delete failures surface a Czech toast.
+
+## Testing
+
+Backend (Vitest, real DB):
+
+- Conversation CRUD: create → list → rename → delete (cascade removes messages).
+- **Isolation:** user A cannot read/append/rename/delete user B's conversation
+  (404), and `listConversations(A)` excludes B's.
+- Append: ordering oldest→newest; `updated_at` bumps; **auto-title** sets the
+  title from the first user message and does not overwrite a renamed title.
+- HTTP: routes 403 without `ai.use`; 404 for a foreign/:id; 400 on bad body.
+
+Frontend: no component tests (consistent with the codebase); gated by
+`tsc -b` + `npm run build`. Live verification by the user/controller.
+
+## Out of scope (Phase 2+)
+
+- Querying system data inside chat (the original deferred Phase-2 scope).
+- Conversation search, pinning, folders, sharing.
+- Streaming responses.

docs/superpowers/specs/2026-06-08-odin-phase2-general-assistant-notes.md

@@ -0,0 +1,49 @@
+# Odin → General Assistant (Phase 2+) — Forward-Looking Notes
+
+**Date:** 2026-06-08 · **Status:** NOT scheduled — design notes only, recorded so Phase 1 choices don't box us in.
+
+The vision: Odin grows from "chat + invoice import" into a **general assistant** that can **query system data** (invoices, projects, attendance, vehicles…) and **take actions** (create an order, mark paid, draft a quote…). This note assesses whether the Phase-1 architecture supports that, and what to carry forward deliberately.
+
+## Bottom line
+
+Phase 1 sets us up well; it does **not** box us in. Two things to carry forward on purpose:
+
+1. **Structured message storage** (content blocks, not a plain string) — cheap to plan now, costly to retrofit later.
+2. **The assistant acts strictly as the authenticated user** — every tool runs through the existing permission/ownership layer.
+
+Everything else (conversations, budget/usage, thin services) is already pointing the right way.
+
+## What Phase 1 already gets right
+
+- **Conversations** — multi-turn, persisted, per-user, isolated. Exactly the context substrate an agent needs.
+- **Budget + usage tracking + `ai.use` gate** — the cost/access spine. Tool loops spend more, so this matters _more_, not less.
+- **Thin service layer** (`{ data } | { error, status }`, ownership-checked) — ideal to wrap as tools without rewriting business logic.
+- **The extract → review → save flow** — a perfect template for "propose action → human confirms → execute." The `canSave`/`invoices.create` gate added in Phase 1 is the one-tool version of per-action authorization.
+
+## The one schema thing to note now
+
+`ai_chat_messages.content` is a **plain string**. Tool use requires persisting **content blocks** (`text` + `tool_use` + `tool_result`), because the model must see the full tool-call history to continue. When Phase 2 lands, store the **raw content-block array** (JSON column, e.g. `content_json`/`blocks`) and keep a derived plain-text for display/search. Don't change it now — just design Phase 2 persistence as "store the blocks," treating the current string as a lossy projection.
+
+## The core shift (Phase 2)
+
+1. **Tool use over the existing services.** Define tools (`list_invoices`, `get_project`, `create_order`, …) whose handlers call the **same service functions the routes use**. The SDK tool-runner loops; we execute. Reuses all validation/business logic and — critically — permissions.
+2. **Authorization is the hard part.** Every tool MUST run **as the user**, through `requirePermission` / service ownership checks. The assistant must never do what the user can't. It is the user's _delegate_, not a privileged actor.
+3. **Read vs write.** Read/query tools may run autonomously. Write/destructive tools **propose → confirm → execute** (generalize the invoice review card into a generic "action card"). Aligns with the assistant safety rules (confirm side-effecting actions).
+4. **Audit.** Every action the assistant takes should `logAudit` like a manual action, attributed to the user with a marker (e.g. `via: "odin"`), for a real trail.
+5. **Cost.** Tool loops are multi-round-trip → 3–10× the tokens of a chat turn. The $50 cap bites faster; consider per-conversation cost display and per-action budget re-checks (the inter-file budget re-check in `extract-invoices` is the pattern).
+
+## Data access: tools-over-services, NOT RAG
+
+Recommendation: **function-calling against the real services**, not embeddings/RAG. The data is structured, live, and permissioned — tools give correct, current, authorized answers. RAG over a snapshot would be stale, would leak across permission boundaries, and would duplicate logic. Reserve embeddings for genuinely unstructured document search if it ever comes up.
+
+## Other forward notes
+
+- **Model / effort:** a true agentic assistant wants a stronger model and possibly `effort` tuning; Phase-1 Sonnet single-shot is right for now.
+- **Streaming:** multi-step tool use feels slow without it — add SSE when Phase 2 lands.
+- **System prompt:** describe the user's role + available tools + the confirm-before-write rule.
+- **Managed Agents vs self-hosted loop:** Anthropic's Managed Agents host the loop, but for a self-hosted business app with our own services + permissions, **Claude API + tool use with a self-hosted loop** is the better fit — authorization stays in our stack.
+
+## What NOT to do prematurely
+
+- Don't add a tool framework, embeddings, or streaming now — Phase 1 is plain chat + a fixed-prompt extractor, and that's the right scope.
+- Don't widen `ai.use` to non-admins until the per-action authorization story (point 2) is in place.

docs/superpowers/specs/2026-06-09-issued-orders-design.md

@@ -0,0 +1,383 @@
+# Objednávky vydané (Issued Purchase Orders) — Design Spec
+
+**Date:** 2026-06-09
+**Status:** Approved (brainstorm) → ready for implementation plan
+**Author:** brainstorm session
+
+> **Updated 2026-06-09 (as-built):** Shipped with three deviations from this
+> brainstorm — **Vydané-first tabs** (Vydané | Přijaté, mirroring Invoices), a
+> **shared chevron month/year filter** above the tabs that filters both lists,
+> and a PDF **rebuilt on the shared invoice/order-confirmation template** rather
+> than the custom layout sketched below. See the affected sections (UI placement,
+> PDF export, Frontend) and the plan's "Post-plan consistency pass" note.
+
+---
+
+## Goal
+
+Add a new document type — **objednávky vydané** (purchase orders you issue to a
+supplier) — alongside the existing customer orders. You author the PO with line
+items, it gets an auto-generated number, you track its status, and you export it
+to PDF to send to the supplier. The existing orders module becomes the
+**přijaté** (customer-order) side of a two-tab UI, mirroring how the Invoices
+page already splits **Vydané | Přijaté**.
+
+## Non-goals (v1)
+
+- **No cross-module wiring.** A PO does **not** link to warehouse goods receipts
+  (`sklad_receipts`) or to received invoices (`faktury přijaté`). The full
+  procurement loop (ordered → received → invoiced) is a deliberate later phase.
+- **No new supplier master.** POs reuse the existing `customers` table as generic
+  business partners.
+- **No NAS persistence of the PO PDF** in v1 (generated on demand only).
+- **No "scope sections"** (the CZ/EN rich-text blocks orders/quotations carry).
+- **No AI/Odin authoring.** POs are authored by hand; Odin extraction is a
+  received-document concept and does not apply to documents you create.
+
+---
+
+## Decisions log (resolved during brainstorm)
+
+1. **Direction mapping.** Today's `orders` (status default `prijata`, flowing
+   quotation → order → project → invoice) stay as the **Přijaté** side, largely
+   unchanged — only surfaced under a new tab. The new **Vydané** side is a
+   brand-new document type. _(Not a `direction` flag on the existing table.)_
+2. **Supplier source.** A PO references the existing **`customers`** table (FK),
+   used as a generic business partner. No new supplier/vendor master.
+3. **Linkage.** **Standalone document** in v1. No automatic links to warehouse or
+   received invoices.
+4. **UI placement.** **Tabs on the Orders page**, mirroring the Invoices page.
+   _(As-built: **Vydané first / Přijaté second** — `Vydané | Přijaté`, tab values
+   `vydane`/`prijate`, persisted in `?tab=` — matching the Invoices page order. A
+   shared **chevron month/year selector** sits above the tabs and filters BOTH
+   lists: Vydané by `order_date`, Přijaté by `created_at`. The pre-existing Přijaté
+   search bug — search term sent but ignored by the backend — was also fixed.)_
+5. **Model shape.** A **dedicated `issued_orders` + `issued_order_items`** pair,
+   mirroring `invoices`/`invoice_items` — _not_ an extension of `orders` and _not_
+   an upload-only record like `received_invoices`.
+6. **VAT regime.** **NET base + VAT-on-top** (the _issued-invoice_ convention),
+   the **opposite** of `received_invoices` (which are gross/VAT-inclusive). Totals
+   use the same per-line-rounded math as `computeInvoiceTotals`.
+7. **Numbering.** A **dedicated** `number_sequences` type (`"issued_order"`),
+   separate from the `"shared"` orders/projects pool and from `"invoice"`. Number
+   assigned **at creation** (even for a `draft`), with release-on-delete.
+8. **Permissions.** **Reuse the existing `orders.*` set** (`view`/`create`/`edit`/
+   `delete`) plus `orders.export` for the PDF — mirrors invoices sharing one
+   permission set across both tabs; **no permission migration needed**.
+
+---
+
+## Architecture
+
+A self-contained vertical slice following the codebase's established document
+pattern (the same shape `invoices` uses):
+
+```
+prisma/schema.prisma         → models issued_orders, issued_order_items + enum
+src/schemas/issued-orders.schema.ts
+src/services/issued-orders.service.ts
+src/services/numbering.service.ts        (extend: issued-order number fns)
+src/routes/admin/issued-orders.ts        (register in routes/admin/index.ts)
+src/routes/admin/issued-orders-pdf.ts    (PDF route, modeled on invoices-pdf.ts)
+src/admin/pages/Orders.tsx               (add Přijaté | Vydané tabs)
+src/admin/pages/IssuedOrderDetail.tsx    (create/edit form + PDF export)
+src/admin/lib/queries/issued-orders.ts
+src/admin/lib/entityTypeLabels.ts        (add "issued_order" Czech label)
+src/admin/AdminApp.tsx                    (lazy routes for detail/new)
+src/__tests__/issued-orders.test.ts
+```
+
+**Tech stack:** Fastify 5, Prisma 7 (MySQL), Zod 4, React 19 + MUI v7, React
+Query, Puppeteer (PDF), Vitest. All new code follows the audited conventions
+(success/error helpers, `parseBody`/`parseId`, shared Zod coercers, broad query
+invalidation, deterministic ordering with an `id` tiebreak, locked
+read-modify-write for numbering).
+
+---
+
+## Data model
+
+### `issued_orders` (parallels `invoices`)
+
+| Field            | Type                                               | Notes                                       |
+| ---------------- | -------------------------------------------------- | ------------------------------------------- |
+| `id`             | Int PK autoincrement                               |                                             |
+| `po_number`      | VARCHAR(50) unique                                 | auto-assigned (see Numbering)               |
+| `customer_id`    | Int FK → `customers` (onDelete Restrict, nullable) | the **supplier/partner** being ordered from |
+| `status`         | enum `issued_orders_status`                        | default `draft`                             |
+| `currency`       | VARCHAR(10) default `"CZK"`                        |                                             |
+| `vat_rate`       | Decimal(5,2) default `21.00`                       | doc-level default rate                      |
+| `apply_vat`      | Boolean default `true`                             |                                             |
+| `exchange_rate`  | Decimal(12,4) nullable                             | foreign-currency, like orders               |
+| `order_date`     | Date                                               | date the PO is issued                       |
+| `delivery_date`  | Date nullable                                      | requested delivery / required-by            |
+| `language`       | VARCHAR(5) default `"cs"`                          | drives PDF language                         |
+| `delivery_terms` | VARCHAR(500) nullable                              | optional, shown on PDF                      |
+| `payment_terms`  | VARCHAR(500) nullable                              | optional, shown on PDF                      |
+| `issued_by`      | VARCHAR(255) nullable                              | signatory name                              |
+| `notes`          | Text nullable                                      | rich text, **rendered on PDF** (sanitized)  |
+| `internal_notes` | Text nullable                                      | private, **not** on PDF                     |
+| `created_at`     | DateTime default now                               |                                             |
+| `modified_at`    | DateTime @updatedAt                                |                                             |
+
+**Relations:** `issued_order_items[]`, `customers?`.
+**Indexes:** `(customer_id)`, `(status, order_date)`.
+
+### `issued_order_items` (parallels `invoice_items`)
+
+| Field              | Type                                        | Notes                           |
+| ------------------ | ------------------------------------------- | ------------------------------- |
+| `id`               | Int PK                                      |                                 |
+| `issued_order_id`  | Int FK → `issued_orders` (onDelete Cascade) |                                 |
+| `description`      | VARCHAR(500)                                | main line text                  |
+| `item_description` | Text nullable                               | optional long detail            |
+| `quantity`         | Decimal(12,3) default `1.000`               |                                 |
+| `unit`             | VARCHAR(20) nullable                        | e.g. ks, hod, kg                |
+| `unit_price`       | Decimal(12,2) default `0.00`                | **NET** unit price              |
+| `vat_rate`         | Decimal(5,2) default `21.00`                | per-line; overrides doc default |
+| `position`         | Int default `0`                             | ordering                        |
+
+**Index:** `(issued_order_id)`.
+
+### `issued_orders_status` enum
+
+`draft`, `sent`, `confirmed`, `completed`, `cancelled`
+(Czech labels: _Koncept · Odeslaná · Potvrzená · Dokončená · Stornovaná_.)
+
+---
+
+## Numbering
+
+A dedicated sequence, exactly like invoices:
+
+- New `number_sequences` type string `"issued_order"` (unique on `(type, year)`,
+  as the table already enforces). Separate from `"shared"` and `"invoice"`.
+- New `company_settings` columns:
+  - `issued_order_number_pattern` VARCHAR default `"{YY}{CODE}{NNNN}"`
+  - `issued_order_type_code` VARCHAR default `"72"` (orders use `71`, invoices
+    `81`; `72` is free and configurable).
+- New functions in `src/services/numbering.service.ts`, reusing the existing
+  `applyPattern` + `getNextSequence` (`SELECT … FOR UPDATE` lock, P2002
+  first-of-year retry):
+  - `generateIssuedOrderNumber(tx)` — atomically consumes the next number.
+  - `previewIssuedOrderNumber()` — non-consuming peek (for the create form).
+  - `releaseIssuedOrderNumber(year, number)` — decrement only if the deleted PO
+    held the current highest number that year (gap prevention), mirroring
+    `releaseInvoiceNumber`.
+- The number is **assigned at creation**, including for a `draft`. Deleting a PO
+  releases the number per the rule above.
+
+---
+
+## Backend API
+
+### Schema — `src/schemas/issued-orders.schema.ts`
+
+`CreateIssuedOrderSchema`, `UpdateIssuedOrderSchema`, `IssuedOrderItemSchema`,
+built **only** from the shared coercers in `src/schemas/common.ts`:
+
+- `customer_id` → `nullableIntIdFromForm`
+- `quantity` → `positiveNumberFromForm`; `unit_price` → `nonNegativeNumberFromForm`
+- `vat_rate` → `numberInRange(0, 100)`
+- `order_date` / `delivery_date` → `isoDateString` (lenient)
+- text fields → `z.string().max(...)`; optional email-like none here
+- Czech user-facing messages; English identifiers.
+
+**No** raw `z.union([z.number(), z.string()]).transform(Number)` — that idiom is
+banned (silent `NaN`).
+
+### Service — `src/services/issued-orders.service.ts`
+
+Plain exported async functions returning `{ data }` or `{ error, status }`:
+
+- `listIssuedOrders(params)` — paginated; filters `status`, `customer_id`,
+  `search` (po_number / supplier name); whitelist sort
+  (`id`/`po_number`/`status`/`order_date`/`created_at`) with a deterministic
+  **`{ id }` tiebreak**; each row enriched via `computeIssuedOrderTotals`.
+- `getIssuedOrder(id)` — full detail with items, supplier name, and
+  `valid_transitions`.
+- `createIssuedOrder(body)` — inside `prisma.$transaction`:
+  `generateIssuedOrderNumber(tx)` → insert header → batch-insert items.
+- `updateIssuedOrder(id, body)` — validates the status transition against
+  `VALID_TRANSITIONS`; replaces items (delete-all + recreate) only while the doc
+  is editable (`draft`/`sent`); blocks any `po_number` change.
+- `deleteIssuedOrder(id)` — delete (items cascade) then
+  `releaseIssuedOrderNumber(year, po_number)`.
+- `computeIssuedOrderTotals(items, applyVat, docRate)` — **NET + VAT-on-top,
+  rounded per line before accumulation** (same shape as `computeInvoiceTotals`):
+  `base = qty × unit_price`; `lineVat = round(base × rate/100)` when
+  `applyVat`; `subtotal = Σ base`, `vat = Σ lineVat`, `total = subtotal + vat`.
+  Falls back line `vat_rate` → doc `vat_rate` → 21.
+- `getNextIssuedOrderNumber()` — proxies `previewIssuedOrderNumber()`.
+
+`VALID_TRANSITIONS`:
+
+```
+draft     → [sent, cancelled]
+sent      → [confirmed, cancelled]
+confirmed → [completed, cancelled]
+completed → []      // terminal
+cancelled → []      // terminal
+```
+
+### Routes — `src/routes/admin/issued-orders.ts`
+
+Registered in `src/routes/admin/index.ts`. Every handler uses `success()`/
+`error()`, `parseBody(Schema, …)`, `parseId((request.params as any).id, reply)`,
+and `logAudit` with a **new** entity type `"issued_order"` (create/update/delete,
+with `oldValues`/`newValues`). Adding this entity type requires also registering
+its Czech label in `src/admin/lib/entityTypeLabels.ts` (keyed to the server's
+`EntityType` value), per the single-source-of-truth convention.
+
+| Method · Path                              | Guard           | Purpose                    |
+| ------------------------------------------ | --------------- | -------------------------- |
+| GET `/api/admin/issued-orders`             | `orders.view`   | list (paginated, filtered) |
+| GET `/api/admin/issued-orders/next-number` | `orders.create` | preview next PO number     |
+| GET `/api/admin/issued-orders/:id`         | `orders.view`   | detail                     |
+| POST `/api/admin/issued-orders`            | `orders.create` | create                     |
+| PUT `/api/admin/issued-orders/:id`         | `orders.edit`   | update                     |
+| DELETE `/api/admin/issued-orders/:id`      | `orders.delete` | delete                     |
+| GET `/api/admin/issued-orders/:id/pdf`     | `orders.export` | render + stream PDF        |
+
+---
+
+## PDF export
+
+> **As-built (2026-06-09):** rather than the custom/compact layout this section
+> originally sketched, the issued-order PDF was **rebuilt on the shared
+> invoice / order-confirmation red-accent (#de3a3a) template** (`src/routes/admin/issued-orders-pdf.ts`),
+> titled **OBJEDNÁVKA**, for visual consistency with the rest of the document
+> suite. Because a PO is a buying document, the direction is **flipped vs an
+> invoice**: the selected **customer record renders as "Dodavatel" (supplier)**
+> and **your company as "Odběratel" (buyer)**. It is generated **on demand** and
+> streamed as `application/pdf` — **no NAS persistence**. Sanitization,
+> on-demand/no-NAS behavior, and the NET+VAT-on-top totals below are unchanged.
+
+New route + template `src/routes/admin/issued-orders-pdf.ts`, reusing
+`htmlToPdf` (Puppeteer) from `src/utils/pdf.ts`:
+
+- **Dodavatel (supplier) block** = the selected `customers` record (name,
+  IČO/`company_id`, DIČ/`vat_id`, address). **Odběratel (buyer) block** = your
+  company (`company_settings`: name, IČO, DIČ, address, logo as base64).
+- Body: items table → VAT recap grouped by rate → **NET total + VAT + gross**.
+- `cs` / `en` strings selected by `language`. Czech date/currency via the
+  existing formatters.
+- `notes` passed through the **same** `cleanQuillHtml` + DOMPurify sanitization
+  used by invoices/orders before going into the template (mandatory for any new
+  rich-text-on-PDF field).
+- **v1 behavior:** generate on demand and stream `application/pdf` with
+  `Content-Disposition` filename `{po_number}.pdf`. **No NAS write.** (A future
+  `?save=1 → Objednávky vydané/YYYY/MM/{po_number}.pdf` add-on is a small,
+  isolated follow-up.)
+
+---
+
+## Frontend
+
+- **`src/admin/pages/Orders.tsx` — add `Vydané | Přijaté` tabs** using the same
+  MUI Tabs pattern as `Invoices.tsx`. The current orders list moves **verbatim**
+  into the **Přijaté** tab — every hook, mutation, `invalidate` array, validation,
+  and permission check preserved unchanged; only presentation is reorganized. The
+  **Vydané** tab renders the new list.
+  _(As-built: `Orders.tsx` became a **parent shell** that owns the `PageHeader` +
+  the shared month/year selector + the tabs; `IssuedOrders.tsx` (Vydané) and
+  `OrdersReceived.tsx` (Přijaté) are **content-only children** receiving `month`/`year`
+  props. `OrdersReceived`'s create modal is **hoisted** to the shell via
+  `createOpen`/`setCreateOpen`, the ReceivedInvoices pattern. **No KPI/stat cards**
+  on the Orders landing — deliberate, since orders have no paid/overdue semantics.)_
+- **Vydané list** — `DataTable` columns: `po_number`, supplier (customer name),
+  status chip (color per status), `order_date`, total (currency), actions (open,
+  **Export PDF**, delete). `FilterBar` with status + customer `Select`s and search
+  at standard widths; pagination + sortable headers; an "Vytvořit objednávku
+  vydanou" button gated on `orders.create`.
+- **`src/admin/pages/IssuedOrderDetail.tsx`** (lazy routes `/orders/issued/new`
+  and `/orders/issued/:id` in `AdminApp.tsx`): supplier `Select`, `order_date` /
+  `delivery_date` `DateField`s, currency / VAT rate / `apply_vat`, a **line-items
+  table** (add/remove rows + `@dnd-kit` reorder, like `InvoiceDetail`), `RichEditor`
+  notes, internal notes, `delivery_terms` / `payment_terms`, `issued_by`, **live
+  totals** (net / VAT / gross), status-transition buttons, and an **Export PDF**
+  button gated on `orders.export`. Top-level sections wrapped in `<PageEnter>`;
+  imports come from the `ui/` kit.
+- **Queries** `src/admin/lib/queries/issued-orders.ts` — `issuedOrderListOptions`,
+  `issuedOrderDetailOptions`, `issuedOrderNextNumberOptions`. All mutations
+  invalidate the **broad `["issued-orders"]`** domain key.
+- **Rules of Hooks:** all hooks run before any early permission `return`
+  (`<Forbidden/>`/`<Navigate/>` go after every hook) — `npm run lint` enforces
+  `react-hooks/rules-of-hooks` as an error.
+- Sidebar nav unchanged — one "Objednávky" item; the split lives in the tabs.
+
+---
+
+## Permissions
+
+Reuse the existing `orders.*` set for the Vydané tab:
+
+- `orders.view` — list + detail + PDF view
+- `orders.create` — create + next-number preview
+- `orders.edit` — update
+- `orders.delete` — delete
+- `orders.export` — PDF export (already seeded)
+
+This mirrors invoices (issued + received share one `invoices.*` set) and needs
+**no permission migration**. _(Future option, out of scope for v1: a dedicated
+`purchase-orders._` set via a seed + migration if purchasing must be locked down
+separately from sales orders.)\*
+
+---
+
+## Status lifecycle
+
+`draft → sent → confirmed → completed`, plus any non-terminal → `cancelled`.
+
+- **Editable** (header + items): `draft`, `sent`.
+- **Read-only except a permitted status change**: `confirmed`, `completed`,
+  `cancelled`.
+- Enforced server-side by the `VALID_TRANSITIONS` guard in the service; the detail
+  page only renders buttons for valid next states.
+
+---
+
+## Testing
+
+`src/__tests__/issued-orders.test.ts`, against the real **`app_test`** DB via
+`buildApp()` (no Prisma mocks):
+
+- **Numbering:** sequential allocation; release-only-if-highest on delete; the
+  generated number matches the configured pattern.
+- **Create + totals:** create with multiple items, assert NET+VAT-on-top totals
+  with **per-line rounding pinned to exact 2-decimal values**; mixed per-line VAT
+  rates; `apply_vat=false` zeroes VAT but preserves the NET subtotal.
+- **Status transitions:** every valid transition succeeds; invalid transitions
+  return the proper error; items become read-only after `confirmed`.
+- **Permissions:** each endpoint rejects a caller lacking the required `orders.*`
+  permission (not bare auth).
+- **PDF:** `GET /:id/pdf` returns `200` with `content-type: application/pdf`.
+
+---
+
+## Migration
+
+A single `prisma migrate dev --name issued_orders`:
+
+1. Creates `issued_orders` and `issued_order_items` tables + the
+   `issued_orders_status` enum.
+2. Adds `issued_order_number_pattern` and `issued_order_type_code` columns to
+   `company_settings` with SQL defaults (`"{YY}{CODE}{NNNN}"`, `"72"`).
+
+Per project rules: **ask the user to stop the dev server first**; commit both
+`schema.prisma` and the generated migration folder; run `prisma generate`. No raw
+SQL on prod — the column defaults ship inside the migration's `migration.sql`.
+
+**Quality gates before "done":** `npx tsc -b --noEmit`, `npm run build`,
+`npx vitest run`, `npm run lint` (0 errors).
+
+---
+
+## Future phases (explicitly out of scope for v1)
+
+- **Procurement links:** PO ↔ warehouse goods receipt (`sklad_receipts`) and
+  PO ↔ received invoice matching (ordered → received → invoiced rollups), with
+  Odin pre-filling a received invoice from a PO.
+- **NAS persistence** of the generated PO PDF (`?save=1`).
+- **Dedicated `purchase-orders.*` permission set.**
+- **Scope sections** (CZ/EN rich-text blocks) if POs ever need narrative content.

eslint.config.mjs

@@ -0,0 +1,78 @@
+import js from "@eslint/js";
+import tseslint from "typescript-eslint";
+import reactHooks from "eslint-plugin-react-hooks";
+import reactRefresh from "eslint-plugin-react-refresh";
+import globals from "globals";
+import prettier from "eslint-config-prettier";
+
+export default tseslint.config(
+  {
+    ignores: [
+      "dist/**",
+      "dist-client/**",
+      "node_modules/**",
+      "prisma/migrations/**",
+      "src/admin/bones/**",
+      "*.config.js",
+      "*.config.mjs",
+      "*.config.ts",
+      ".claude/**",
+    ],
+  },
+  js.configs.recommended,
+  ...tseslint.configs.recommended,
+  {
+    // Server + shared code
+    files: ["src/**/*.{ts,tsx}", "scripts/**/*.ts", "prisma/seed.ts"],
+    languageOptions: {
+      globals: { ...globals.node, ...globals.browser },
+    },
+    rules: {
+      // TS already resolves identifiers — `no-undef` only false-positives on
+      // global types/ambient names in .ts files.
+      "no-undef": "off",
+      "@typescript-eslint/no-explicit-any": "warn",
+      "@typescript-eslint/no-unused-vars": [
+        "warn",
+        { argsIgnorePattern: "^_", varsIgnorePattern: "^_" },
+      ],
+      "@typescript-eslint/no-require-imports": "warn",
+      "no-empty": ["warn", { allowEmptyCatch: false }],
+      // Intentional control-character regexes (NUL/path-traversal guards,
+      // combining-marks stripping) — not a defect here.
+      "no-control-regex": "off",
+      // Stylistic / advisory — surface as warnings, don't fail the lint gate.
+      "no-useless-escape": "warn",
+      "no-useless-assignment": "warn",
+      "preserve-caught-error": "warn",
+      "prefer-const": "warn",
+    },
+  },
+  {
+    // Frontend React code
+    files: ["src/admin/**/*.{ts,tsx}", "src/**/*.tsx"],
+    plugins: {
+      "react-hooks": reactHooks,
+      "react-refresh": reactRefresh,
+    },
+    rules: {
+      "react-hooks/rules-of-hooks": "error",
+      "react-hooks/exhaustive-deps": "warn",
+    },
+  },
+  {
+    // Plain Node helper scripts (.js/.mjs/.cjs in scripts/)
+    files: ["scripts/**/*.{js,mjs,cjs}"],
+    languageOptions: { globals: { ...globals.node } },
+    rules: { "no-undef": "off" },
+  },
+  {
+    // Tests
+    files: ["src/__tests__/**/*.ts"],
+    languageOptions: { globals: { ...globals.node } },
+    rules: {
+      "@typescript-eslint/no-explicit-any": "off",
+    },
+  },
+  prettier,
+);

index.html

@@ -13,7 +13,7 @@
     <link rel="preconnect" href="https://fonts.googleapis.com" />
     <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
     <link
-      href="https://fonts.googleapis.com/css2?family=DM+Mono:wght@300;400;500&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Urbanist:wght@300;400;500;600;700;800&display=swap"
+      href="https://fonts.googleapis.com/css2?family=DM+Mono:wght@300;400;500&family=Newsreader:ital,opsz,wght@0,6..72,400;0,6..72,500;0,6..72,600;1,6..72,400;1,6..72,500&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Urbanist:wght@300;400;500;600;700;800&display=swap"
       rel="stylesheet"
     />
     <link rel="icon" type="image/png" href="/favicon-96x96.png" sizes="96x96" />

package.json

@@ -1,6 +1,6 @@
 {
   "name": "app-ts",
-  "version": "2.0.8",
+  "version": "2.4.31",
   "description": "",
   "main": "dist/server.js",
   "scripts": {
@@ -14,20 +14,22 @@
     "preview": "vite preview",
     "db:generate": "prisma generate",
     "db:pull": "prisma db pull",
-    "db:push": "prisma db push",
     "db:studio": "prisma studio",
     "test": "vitest run",
     "test:watch": "vitest",
-    "seed": "tsx prisma/seed.ts"
+    "seed": "tsx prisma/seed.ts",
-  },
+    "typecheck": "tsc -b --noEmit",
-  "prisma": {
+    "lint": "eslint .",
-    "seed": "tsx prisma/seed.ts"
+    "lint:fix": "eslint . --fix",
+    "format": "prettier --write .",
+    "format:check": "prettier --check ."
   },
   "keywords": [],
   "author": "",
   "license": "ISC",
   "type": "commonjs",
   "dependencies": {
+    "@anthropic-ai/sdk": "^0.102.0",
     "@dnd-kit/core": "^6.3.1",
     "@dnd-kit/modifiers": "^9.0.0",
     "@dnd-kit/sortable": "^10.0.0",
@@ -41,52 +43,59 @@
     "@fastify/static": "^9.0.0",
     "@mui/material": "^7.3.11",
     "@mui/x-date-pickers": "^8.29.0",
-    "@prisma/client": "^6.19.2",
+    "@prisma/adapter-mariadb": "^7.8.0",
+    "@prisma/client": "^7.8.0",
     "@tanstack/react-query": "^5.100.5",
-    "@types/jsdom": "^28.0.1",
     "bcryptjs": "^3.0.3",
     "date-fns": "^4.1.0",
     "dompurify": "^3.3.3",
     "dotenv": "^17.3.1",
     "fastify": "^5.8.2",
-    "file-type": "^16.5.4",
+    "file-type": "^22.0.1",
     "framer-motion": "^12.38.0",
-    "hi-base32": "^0.5.1",
     "jsdom": "^29.0.2",
     "jsonwebtoken": "^9.0.3",
     "leaflet": "^1.9.4",
+    "mariadb": "^3.5.2",
     "node-cron": "^4.2.1",
     "nodemailer": "^8.0.2",
     "otpauth": "^9.5.0",
-    "prisma": "^6.19.2",
+    "prisma": "^7.8.0",
     "puppeteer": "^24.40.0",
     "qrcode": "^1.5.4",
-    "react": "^18.3.1",
+    "react": "^19.2.7",
-    "react-datepicker": "^9.1.0",
+    "react-dom": "^19.2.7",
-    "react-dom": "^18.3.1",
     "react-quill-new": "^3.8.3",
     "react-router-dom": "^6.30.3",
     "zod": "^4.3.6"
   },
   "devDependencies": {
-    "@types/bcryptjs": "^2.4.6",
+    "@eslint/js": "^10.0.1",
-    "@types/dompurify": "^3.0.5",
+    "@types/jsdom": "^28.0.1",
     "@types/jsonwebtoken": "^9.0.10",
     "@types/leaflet": "^1.9.21",
-    "@types/mysql": "^2.15.27",
     "@types/node": "^25.5.0",
     "@types/node-cron": "^3.0.11",
     "@types/nodemailer": "^7.0.11",
     "@types/qrcode": "^1.5.6",
-    "@types/react": "^18.3.31",
+    "@types/react": "^19.2.17",
-    "@types/react-dom": "^18.3.7",
+    "@types/react-dom": "^19.2.3",
     "@types/supertest": "^7.2.0",
     "@vitejs/plugin-react": "^6.0.1",
-    "concurrently": "^9.2.1",
+    "eslint": "^10.4.1",
+    "eslint-config-prettier": "^10.1.8",
+    "eslint-plugin-react-hooks": "^7.1.1",
+    "eslint-plugin-react-refresh": "^0.5.2",
+    "globals": "^17.6.0",
+    "prettier": "^3.8.3",
     "supertest": "^7.2.2",
     "tsx": "^4.21.0",
     "typescript": "^5.9.3",
+    "typescript-eslint": "^8.61.0",
     "vite": "^8.0.0",
     "vitest": "^4.1.0"
+  },
+  "overrides": {
+    "@hono/node-server": "^1.19.13"
   }
 }

prisma.config.ts

@@ -0,0 +1,16 @@
+import "dotenv/config";
+import { defineConfig, env } from "prisma/config";
+
+// Prisma 7 moved the datasource connection URL and seed config out of
+// schema.prisma / package.json into this file. `import "dotenv/config"` is
+// required because Prisma 7 no longer auto-loads .env. The runtime database
+// connection itself is made via the driver adapter in src/config/database.ts.
+export default defineConfig({
+  schema: "prisma/schema.prisma",
+  datasource: {
+    url: env("DATABASE_URL"),
+  },
+  migrations: {
+    seed: "tsx prisma/seed.ts",
+  },
+});

prisma/migrations/20260608120000_add_ai_assistant/migration.sql

@@ -0,0 +1,29 @@
+-- AI assistant (Phase 1): usage-tracking table, monthly budget column, ai.use permission.
+
+CREATE TABLE `ai_usage` (
+  `id` INTEGER NOT NULL AUTO_INCREMENT,
+  `user_id` INTEGER NULL,
+  `kind` VARCHAR(20) NOT NULL,
+  `model` VARCHAR(50) NOT NULL,
+  `input_tokens` INTEGER NOT NULL DEFAULT 0,
+  `output_tokens` INTEGER NOT NULL DEFAULT 0,
+  `cost_usd` DECIMAL(10, 6) NOT NULL DEFAULT 0,
+  `created_at` TIMESTAMP(0) NOT NULL DEFAULT CURRENT_TIMESTAMP(0),
+  PRIMARY KEY (`id`),
+  INDEX `idx_ai_usage_created` (`created_at`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+ALTER TABLE `company_settings`
+  ADD COLUMN `ai_monthly_budget_usd` DECIMAL(10, 2) NULL DEFAULT 50.00;
+
+-- ai.use permission + grant to admin (INSERT IGNORE → idempotent), mirroring
+-- the warehouse-permissions migration.
+INSERT IGNORE INTO `permissions` (`name`, `display_name`, `module`, `description`, `created_at`) VALUES
+  ('ai.use', 'AI asistent', 'ai', 'Používat AI asistenta (chat a import faktur)', NOW());
+
+INSERT IGNORE INTO `role_permissions` (`role_id`, `permission_id`)
+SELECT r.id, p.id
+FROM   `roles` r
+CROSS  JOIN `permissions` p
+WHERE  r.name = 'admin'
+  AND  p.name = 'ai.use';

prisma/migrations/20260608130000_add_ai_chat_history/migration.sql

@@ -0,0 +1,11 @@
+-- AI assistant (Phase 1): per-user chat history (server-side, permanent).
+
+CREATE TABLE `ai_chat_messages` (
+  `id` INTEGER NOT NULL AUTO_INCREMENT,
+  `user_id` INTEGER NOT NULL,
+  `role` VARCHAR(20) NOT NULL,
+  `content` TEXT NOT NULL,
+  `created_at` TIMESTAMP(0) NOT NULL DEFAULT CURRENT_TIMESTAMP(0),
+  PRIMARY KEY (`id`),
+  INDEX `idx_ai_chat_user` (`user_id`, `id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

prisma/migrations/20260608140000_add_ai_conversations/migration.sql

@@ -0,0 +1,32 @@
+-- Multi-conversation Odin: conversations table + conversation_id on messages.
+
+CREATE TABLE `ai_conversations` (
+  `id` INTEGER NOT NULL AUTO_INCREMENT,
+  `user_id` INTEGER NOT NULL,
+  `title` VARCHAR(255) NOT NULL,
+  `created_at` TIMESTAMP(0) NOT NULL DEFAULT CURRENT_TIMESTAMP(0),
+  `updated_at` TIMESTAMP(0) NOT NULL DEFAULT CURRENT_TIMESTAMP(0),
+  PRIMARY KEY (`id`),
+  INDEX `idx_ai_conv_user` (`user_id`, `id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+ALTER TABLE `ai_chat_messages`
+  ADD COLUMN `conversation_id` INTEGER NULL AFTER `user_id`;
+
+-- Backfill: one conversation per user who has messages ("keep as first conversation").
+INSERT INTO `ai_conversations` (`user_id`, `title`, `created_at`, `updated_at`)
+SELECT `user_id`, 'Konverzace', NOW(), NOW()
+FROM `ai_chat_messages`
+GROUP BY `user_id`;
+
+UPDATE `ai_chat_messages` m
+JOIN `ai_conversations` c ON c.`user_id` = m.`user_id`
+SET m.`conversation_id` = c.`id`;
+
+-- Enforce: drop old per-user index, NOT NULL, FK (cascade), per-conversation index.
+ALTER TABLE `ai_chat_messages`
+  DROP INDEX `idx_ai_chat_user`,
+  MODIFY `conversation_id` INTEGER NOT NULL,
+  ADD CONSTRAINT `fk_ai_chat_conv` FOREIGN KEY (`conversation_id`)
+    REFERENCES `ai_conversations`(`id`) ON DELETE CASCADE,
+  ADD INDEX `idx_ai_chat_conv` (`conversation_id`, `id`);

prisma/migrations/20260609000000_audit_schema_hardening/migration.sql

@@ -0,0 +1,137 @@
+-- Audit schema hardening (from the 2026-06-09 codebase audit).
+--
+-- ⚠️ PENDING — NOT YET APPLIED. Review, then apply with the dev server stopped:
+--   npx prisma migrate deploy        (prod / already-tracked)
+--   -- or, in dev, `npx prisma migrate dev` will pick it up as pending.
+--
+-- What this does:
+--   • Warehouse line→header relations now CASCADE on delete (deleting a
+--     receipt/issue/inventory session removes its lines/attachments).
+--   • Warehouse line→master-data (item/batch/location) and the financial FKs
+--     (invoices/orders/projects/quotations → customer/order/quotation) are now
+--     explicit ON DELETE RESTRICT — preventing deletion of a referenced master
+--     record / orphaning of a financial record. (Some of these were previously
+--     the optional-relation default SET NULL; RESTRICT is the safer intent.)
+--   • UNIQUE on warehouse document numbers (receipt_number/issue_number/
+--     session_number) — like every other document-number column.
+--   • New indexes on hot FK filters (sklad_issues/receipts, bank_accounts).
+--
+-- ⚠️ BEFORE APPLYING ON PRODUCTION, verify existing data won't violate the new
+--    constraints: no DUPLICATE non-null receipt/issue/session numbers (else the
+--    UNIQUE index fails), and no rows that would break the RESTRICT FKs. Test on
+--    a copy first.
+--
+-- DropForeignKey
+ALTER TABLE `invoices` DROP FOREIGN KEY `invoices_ibfk_1`;
+
+-- DropForeignKey
+ALTER TABLE `invoices` DROP FOREIGN KEY `invoices_ibfk_2`;
+
+-- DropForeignKey
+ALTER TABLE `orders` DROP FOREIGN KEY `orders_ibfk_1`;
+
+-- DropForeignKey
+ALTER TABLE `orders` DROP FOREIGN KEY `orders_ibfk_2`;
+
+-- DropForeignKey
+ALTER TABLE `projects` DROP FOREIGN KEY `projects_ibfk_1`;
+
+-- DropForeignKey
+ALTER TABLE `projects` DROP FOREIGN KEY `projects_ibfk_2`;
+
+-- DropForeignKey
+ALTER TABLE `projects` DROP FOREIGN KEY `projects_ibfk_3`;
+
+-- DropForeignKey
+ALTER TABLE `quotations` DROP FOREIGN KEY `quotations_ibfk_1`;
+
+-- DropForeignKey
+ALTER TABLE `sklad_receipt_lines` DROP FOREIGN KEY `sklad_receipt_lines_receipt_id_fkey`;
+
+-- DropForeignKey
+ALTER TABLE `sklad_receipt_lines` DROP FOREIGN KEY `sklad_receipt_lines_location_id_fkey`;
+
+-- DropForeignKey
+ALTER TABLE `sklad_receipt_attachments` DROP FOREIGN KEY `sklad_receipt_attachments_receipt_id_fkey`;
+
+-- DropForeignKey
+ALTER TABLE `sklad_issue_lines` DROP FOREIGN KEY `sklad_issue_lines_issue_id_fkey`;
+
+-- DropForeignKey
+ALTER TABLE `sklad_issue_lines` DROP FOREIGN KEY `sklad_issue_lines_location_id_fkey`;
+
+-- DropForeignKey
+ALTER TABLE `sklad_inventory_lines` DROP FOREIGN KEY `sklad_inventory_lines_session_id_fkey`;
+
+-- DropForeignKey
+ALTER TABLE `sklad_inventory_lines` DROP FOREIGN KEY `sklad_inventory_lines_location_id_fkey`;
+
+-- CreateIndex
+CREATE INDEX `idx_bank_accounts_is_default` ON `bank_accounts`(`is_default`);
+
+-- CreateIndex
+CREATE UNIQUE INDEX `sklad_receipts_receipt_number_key` ON `sklad_receipts`(`receipt_number`);
+
+-- CreateIndex
+CREATE INDEX `sklad_receipts_supplier_id` ON `sklad_receipts`(`supplier_id`);
+
+-- CreateIndex
+CREATE INDEX `sklad_receipts_received_by` ON `sklad_receipts`(`received_by`);
+
+-- CreateIndex
+CREATE UNIQUE INDEX `sklad_issues_issue_number_key` ON `sklad_issues`(`issue_number`);
+
+-- CreateIndex
+CREATE INDEX `sklad_issues_project_id` ON `sklad_issues`(`project_id`);
+
+-- CreateIndex
+CREATE INDEX `sklad_issues_issued_by` ON `sklad_issues`(`issued_by`);
+
+-- CreateIndex
+CREATE UNIQUE INDEX `sklad_inventory_sessions_session_number_key` ON `sklad_inventory_sessions`(`session_number`);
+
+-- AddForeignKey
+ALTER TABLE `invoices` ADD CONSTRAINT `invoices_ibfk_1` FOREIGN KEY (`order_id`) REFERENCES `orders`(`id`) ON DELETE RESTRICT ON UPDATE NO ACTION;
+
+-- AddForeignKey
+ALTER TABLE `invoices` ADD CONSTRAINT `invoices_ibfk_2` FOREIGN KEY (`customer_id`) REFERENCES `customers`(`id`) ON DELETE RESTRICT ON UPDATE NO ACTION;
+
+-- AddForeignKey
+ALTER TABLE `orders` ADD CONSTRAINT `orders_ibfk_1` FOREIGN KEY (`quotation_id`) REFERENCES `quotations`(`id`) ON DELETE RESTRICT ON UPDATE NO ACTION;
+
+-- AddForeignKey
+ALTER TABLE `orders` ADD CONSTRAINT `orders_ibfk_2` FOREIGN KEY (`customer_id`) REFERENCES `customers`(`id`) ON DELETE RESTRICT ON UPDATE NO ACTION;
+
+-- AddForeignKey
+ALTER TABLE `projects` ADD CONSTRAINT `projects_ibfk_1` FOREIGN KEY (`customer_id`) REFERENCES `customers`(`id`) ON DELETE RESTRICT ON UPDATE NO ACTION;
+
+-- AddForeignKey
+ALTER TABLE `projects` ADD CONSTRAINT `projects_ibfk_2` FOREIGN KEY (`quotation_id`) REFERENCES `quotations`(`id`) ON DELETE RESTRICT ON UPDATE NO ACTION;
+
+-- AddForeignKey
+ALTER TABLE `projects` ADD CONSTRAINT `projects_ibfk_3` FOREIGN KEY (`order_id`) REFERENCES `orders`(`id`) ON DELETE RESTRICT ON UPDATE NO ACTION;
+
+-- AddForeignKey
+ALTER TABLE `quotations` ADD CONSTRAINT `quotations_ibfk_1` FOREIGN KEY (`customer_id`) REFERENCES `customers`(`id`) ON DELETE RESTRICT ON UPDATE NO ACTION;
+
+-- AddForeignKey
+ALTER TABLE `sklad_receipt_lines` ADD CONSTRAINT `sklad_receipt_lines_receipt_id_fkey` FOREIGN KEY (`receipt_id`) REFERENCES `sklad_receipts`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `sklad_receipt_lines` ADD CONSTRAINT `sklad_receipt_lines_location_id_fkey` FOREIGN KEY (`location_id`) REFERENCES `sklad_locations`(`id`) ON DELETE RESTRICT ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `sklad_receipt_attachments` ADD CONSTRAINT `sklad_receipt_attachments_receipt_id_fkey` FOREIGN KEY (`receipt_id`) REFERENCES `sklad_receipts`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `sklad_issue_lines` ADD CONSTRAINT `sklad_issue_lines_issue_id_fkey` FOREIGN KEY (`issue_id`) REFERENCES `sklad_issues`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `sklad_issue_lines` ADD CONSTRAINT `sklad_issue_lines_location_id_fkey` FOREIGN KEY (`location_id`) REFERENCES `sklad_locations`(`id`) ON DELETE RESTRICT ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `sklad_inventory_lines` ADD CONSTRAINT `sklad_inventory_lines_session_id_fkey` FOREIGN KEY (`session_id`) REFERENCES `sklad_inventory_sessions`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE `sklad_inventory_lines` ADD CONSTRAINT `sklad_inventory_lines_location_id_fkey` FOREIGN KEY (`location_id`) REFERENCES `sklad_locations`(`id`) ON DELETE RESTRICT ON UPDATE CASCADE;
+

prisma/migrations/20260609085127_reconcile_quotations_aichat_fk/migration.sql

@@ -0,0 +1,8 @@
+-- DropForeignKey
+ALTER TABLE `ai_chat_messages` DROP FOREIGN KEY `fk_ai_chat_conv`;
+
+-- AlterTable
+ALTER TABLE `quotations` MODIFY `project_code` VARCHAR(100) NULL;
+
+-- AddForeignKey
+ALTER TABLE `ai_chat_messages` ADD CONSTRAINT `ai_chat_messages_conversation_id_fkey` FOREIGN KEY (`conversation_id`) REFERENCES `ai_conversations`(`id`) ON DELETE CASCADE ON UPDATE CASCADE;

prisma/migrations/20260609085152_issued_orders/migration.sql

@@ -0,0 +1,52 @@
+-- AlterTable
+ALTER TABLE `company_settings` ADD COLUMN `issued_order_number_pattern` VARCHAR(100) NULL,
+    ADD COLUMN `issued_order_type_code` VARCHAR(10) NULL;
+
+-- CreateTable
+CREATE TABLE `issued_orders` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `po_number` VARCHAR(50) NULL,
+    `customer_id` INTEGER NULL,
+    `status` ENUM('draft', 'sent', 'confirmed', 'completed', 'cancelled') NOT NULL DEFAULT 'draft',
+    `currency` VARCHAR(10) NULL DEFAULT 'CZK',
+    `vat_rate` DECIMAL(5, 2) NULL DEFAULT 21.00,
+    `apply_vat` BOOLEAN NULL DEFAULT true,
+    `exchange_rate` DECIMAL(10, 4) NULL DEFAULT 1.0000,
+    `order_date` DATE NULL,
+    `delivery_date` DATE NULL,
+    `language` VARCHAR(5) NULL DEFAULT 'cs',
+    `delivery_terms` VARCHAR(500) NULL,
+    `payment_terms` VARCHAR(500) NULL,
+    `issued_by` VARCHAR(255) NULL,
+    `notes` TEXT NULL,
+    `internal_notes` TEXT NULL,
+    `created_at` DATETIME(0) NULL DEFAULT CURRENT_TIMESTAMP(0),
+    `modified_at` DATETIME(0) NULL,
+
+    UNIQUE INDEX `idx_issued_orders_number_unique`(`po_number`),
+    INDEX `issued_orders_customer_id`(`customer_id`),
+    INDEX `idx_issued_orders_status_date`(`status`, `order_date`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- CreateTable
+CREATE TABLE `issued_order_items` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `issued_order_id` INTEGER NOT NULL,
+    `description` VARCHAR(500) NULL,
+    `item_description` TEXT NULL,
+    `quantity` DECIMAL(12, 3) NULL DEFAULT 1.000,
+    `unit` VARCHAR(20) NULL,
+    `unit_price` DECIMAL(12, 2) NULL DEFAULT 0.00,
+    `vat_rate` DECIMAL(5, 2) NULL DEFAULT 21.00,
+    `position` INTEGER NULL DEFAULT 0,
+
+    INDEX `issued_order_id`(`issued_order_id`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- AddForeignKey
+ALTER TABLE `issued_orders` ADD CONSTRAINT `issued_orders_ibfk_1` FOREIGN KEY (`customer_id`) REFERENCES `customers`(`id`) ON DELETE RESTRICT ON UPDATE NO ACTION;
+
+-- AddForeignKey
+ALTER TABLE `issued_order_items` ADD CONSTRAINT `issued_order_items_ibfk_1` FOREIGN KEY (`issued_order_id`) REFERENCES `issued_orders`(`id`) ON DELETE CASCADE ON UPDATE NO ACTION;

prisma/migrations/20260609171528_add_project_numbering/migration.sql

@@ -0,0 +1,3 @@
+-- AlterTable
+ALTER TABLE `company_settings` ADD COLUMN `project_number_pattern` VARCHAR(100) NULL,
+    ADD COLUMN `project_type_code` VARCHAR(10) NULL;

prisma/migrations/20260609190000_drop_document_export_perms/migration.sql

@@ -0,0 +1,61 @@
+-- Drop the three DEAD document "export" permissions and make the 12 surviving
+-- document permissions reproducible on a fresh production database.
+--
+-- Why: `offers.export`, `orders.export`, `invoices.export` gate NOTHING on the
+-- backend — every PDF/export route is guarded by `*.view`. They only ever
+-- toggled frontend buttons and showed up as dead checkboxes in role management.
+-- The 12 real keys (offers/orders/invoices x view/create/edit/delete) ARE each
+-- enforced on >=1 route and must survive.
+--
+-- All 15 keys were previously defined ONLY in prisma/seed.ts (dev-only), so a
+-- fresh production DB never had ANY of them. This migration both removes the 3
+-- dead keys AND seeds the 12 survivors + their admin grant, mirroring the
+-- prisma/seed.ts column set exactly (name, display_name, module, description,
+-- created_at; role_permissions has only the composite PK).
+--
+-- Idempotent: safe whether the rows exist or not, and safe on a prod DB that
+-- never had them. Deletes are no-ops when absent; INSERT IGNORE skips on the
+-- unique `permissions.name` key and on the `role_permissions` composite PK.
+
+-- 1. Remove the dead export role assignments first (FK-safe: children before
+--    parents). No-op when the permissions/assignments don't exist.
+DELETE FROM `role_permissions`
+WHERE `permission_id` IN (
+  SELECT `id` FROM `permissions`
+  WHERE `name` IN ('offers.export', 'orders.export', 'invoices.export')
+);
+
+-- 2. Remove the dead export permissions themselves.
+DELETE FROM `permissions`
+WHERE `name` IN ('offers.export', 'orders.export', 'invoices.export');
+
+-- 3. Idempotently (re)insert the 12 surviving document permissions. INSERT
+--    IGNORE skips any that already exist (unique `name`). display_name /
+--    description / module match prisma/seed.ts verbatim.
+INSERT IGNORE INTO `permissions` (`name`, `display_name`, `module`, `description`, `created_at`) VALUES
+  ('offers.view',     'Zobrazit nabídky',      'offers',   'Prohlížet seznam nabídek',       NOW()),
+  ('offers.create',   'Vytvořit nabídku',      'offers',   'Vytvářet nové nabídky',          NOW()),
+  ('offers.edit',     'Upravit nabídku',       'offers',   'Upravovat existující nabídky',   NOW()),
+  ('offers.delete',   'Smazat nabídku',        'offers',   'Mazat nabídky',                  NOW()),
+  ('orders.view',     'Zobrazit objednávky',   'orders',   'Prohlížet seznam objednávek',    NOW()),
+  ('orders.create',   'Vytvořit objednávku',   'orders',   'Vytvářet nové objednávky',       NOW()),
+  ('orders.edit',     'Upravit objednávku',    'orders',   'Upravovat existující objednávky', NOW()),
+  ('orders.delete',   'Smazat objednávku',     'orders',   'Mazat objednávky',               NOW()),
+  ('invoices.view',   'Zobrazit faktury',      'invoices', 'Prohlížet seznam faktur',        NOW()),
+  ('invoices.create', 'Vytvořit fakturu',      'invoices', 'Vytvářet nové faktury',          NOW()),
+  ('invoices.edit',   'Upravit fakturu',       'invoices', 'Upravovat existující faktury',   NOW()),
+  ('invoices.delete', 'Smazat fakturu',        'invoices', 'Mazat faktury',                  NOW());
+
+-- 4. Grant all 12 survivors to the admin role. INSERT IGNORE on the composite
+--    PK (role_id, permission_id) makes this idempotent and preserves any other
+--    role assignments that already exist.
+INSERT IGNORE INTO `role_permissions` (`role_id`, `permission_id`)
+SELECT r.id, p.id
+FROM   `roles` r
+CROSS  JOIN `permissions` p
+WHERE  r.name = 'admin'
+  AND  p.name IN (
+    'offers.view',   'offers.create',   'offers.edit',   'offers.delete',
+    'orders.view',   'orders.create',   'orders.edit',   'orders.delete',
+    'invoices.view', 'invoices.create', 'invoices.edit', 'invoices.delete'
+  );

prisma/migrations/20260610104514_issued_orders_customer_to_supplier/migration.sql

@@ -0,0 +1,16 @@
+-- DropForeignKey
+ALTER TABLE `issued_orders` DROP FOREIGN KEY `issued_orders_ibfk_1`;
+
+-- DropIndex
+DROP INDEX `issued_orders_customer_id` ON `issued_orders`;
+
+-- AlterTable
+ALTER TABLE `issued_orders` DROP COLUMN `customer_id`,
+    ADD COLUMN `supplier_id` INTEGER NULL;
+
+-- CreateIndex
+CREATE INDEX `issued_orders_supplier_id` ON `issued_orders`(`supplier_id`);
+
+-- AddForeignKey
+ALTER TABLE `issued_orders` ADD CONSTRAINT `issued_orders_supplier_fk` FOREIGN KEY (`supplier_id`) REFERENCES `sklad_suppliers`(`id`) ON DELETE RESTRICT ON UPDATE NO ACTION;
+

prisma/migrations/20260610121316_issued_orders_order_text/migration.sql

@@ -0,0 +1,3 @@
+-- AlterTable
+ALTER TABLE `issued_orders` ADD COLUMN `order_text` VARCHAR(500) NULL;
+

prisma/migrations/20260610122819_drop_vat_from_offers_and_orders/migration.sql

@@ -0,0 +1,15 @@
+-- AlterTable
+ALTER TABLE `issued_order_items` DROP COLUMN `vat_rate`;
+
+-- AlterTable
+ALTER TABLE `issued_orders` DROP COLUMN `apply_vat`,
+    DROP COLUMN `vat_rate`;
+
+-- AlterTable
+ALTER TABLE `orders` DROP COLUMN `apply_vat`,
+    DROP COLUMN `vat_rate`;
+
+-- AlterTable
+ALTER TABLE `quotations` DROP COLUMN `apply_vat`,
+    DROP COLUMN `vat_rate`;
+

prisma/migrations/20260610135626_issued_orders_lock_and_sections/migration.sql

@@ -0,0 +1,21 @@
+-- AlterTable
+ALTER TABLE `issued_orders` ADD COLUMN `locked_at` DATETIME(0) NULL,
+    ADD COLUMN `locked_by` INTEGER NULL;
+
+-- CreateTable
+CREATE TABLE `issued_order_sections` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `issued_order_id` INTEGER NOT NULL,
+    `position` INTEGER NULL DEFAULT 0,
+    `title` VARCHAR(500) NULL,
+    `title_cz` VARCHAR(500) NULL,
+    `content` TEXT NULL,
+    `modified_at` DATETIME(0) NULL,
+
+    INDEX `issued_order_sections_order_id`(`issued_order_id`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- AddForeignKey
+ALTER TABLE `issued_order_sections` ADD CONSTRAINT `issued_order_sections_fk` FOREIGN KEY (`issued_order_id`) REFERENCES `issued_orders`(`id`) ON DELETE CASCADE ON UPDATE NO ACTION;
+

prisma/migrations/20260610171823_issued_orders_drop_terms_notes_issued_by/migration.sql

@@ -0,0 +1,6 @@
+-- AlterTable
+ALTER TABLE `issued_orders` DROP COLUMN `delivery_terms`,
+    DROP COLUMN `issued_by`,
+    DROP COLUMN `notes`,
+    DROP COLUMN `payment_terms`;
+

prisma/migrations/20260610183000_invoice_sections_notes_internal/migration.sql

@@ -0,0 +1,32 @@
+-- Invoices: rich-text "Obsah" sections (mirrors issued_order_sections) replace
+-- the printed notes block; notes become internal-only. Existing printed notes
+-- are preserved by merging them into internal_notes before the column drop
+-- (both are Quill HTML — concatenation is valid markup).
+
+-- Preserve data: move printed notes into internal_notes
+UPDATE `invoices`
+SET `internal_notes` = CASE
+    WHEN `internal_notes` IS NULL OR `internal_notes` = '' THEN `notes`
+    ELSE CONCAT(`internal_notes`, `notes`)
+  END
+WHERE `notes` IS NOT NULL AND `notes` <> '';
+
+-- AlterTable
+ALTER TABLE `invoices` DROP COLUMN `notes`;
+
+-- CreateTable
+CREATE TABLE `invoice_sections` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `invoice_id` INTEGER NOT NULL,
+    `position` INTEGER NULL DEFAULT 0,
+    `title` VARCHAR(500) NULL,
+    `title_cz` VARCHAR(500) NULL,
+    `content` TEXT NULL,
+    `modified_at` DATETIME(0) NULL,
+
+    INDEX `invoice_sections_invoice_id`(`invoice_id`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
+
+-- AddForeignKey
+ALTER TABLE `invoice_sections` ADD CONSTRAINT `invoice_sections_fk` FOREIGN KEY (`invoice_id`) REFERENCES `invoices`(`id`) ON DELETE CASCADE ON UPDATE NO ACTION;

prisma/migrations/20260610200000_supplier_structured_address/migration.sql

@@ -0,0 +1,28 @@
+-- Suppliers get a structured address (street/city/postal_code/country) like
+-- customers; the single free-text `address` blob is dropped. Existing data is
+-- split best-effort: newlines normalized to ", ", first comma segment ->
+-- street, the PSC (3+2 digits) -> postal_code, the remainder -> city.
+-- Unparseable one-segment addresses keep their full text in `street`.
+
+-- AlterTable: add the structured columns
+ALTER TABLE `sklad_suppliers`
+  ADD COLUMN `street` VARCHAR(255) NULL AFTER `phone`,
+  ADD COLUMN `city` VARCHAR(255) NULL AFTER `street`,
+  ADD COLUMN `postal_code` VARCHAR(20) NULL AFTER `city`,
+  ADD COLUMN `country` VARCHAR(100) NULL AFTER `postal_code`;
+
+-- Preserve data: best-effort split of the legacy free-text address
+UPDATE `sklad_suppliers`
+SET
+  `street` = NULLIF(TRIM(SUBSTRING_INDEX(REPLACE(REPLACE(`address`, '\r', ''), '\n', ', '), ',', 1)), ''),
+  `postal_code` = REGEXP_SUBSTR(`address`, '[0-9]{3}[ ]?[0-9]{2}'),
+  `city` = NULLIF(TRIM(BOTH ',' FROM TRIM(REGEXP_REPLACE(
+      SUBSTRING(
+        REPLACE(REPLACE(`address`, '\r', ''), '\n', ', '),
+        CHAR_LENGTH(SUBSTRING_INDEX(REPLACE(REPLACE(`address`, '\r', ''), '\n', ', '), ',', 1)) + 2
+      ),
+      '[0-9]{3}[ ]?[0-9]{2}', ''))), '')
+WHERE `address` IS NOT NULL AND `address` <> '';
+
+-- AlterTable: drop the legacy blob
+ALTER TABLE `sklad_suppliers` DROP COLUMN `address`;

prisma/migrations/20260610203000_supplier_custom_fields/migration.sql

@@ -0,0 +1,43 @@
+-- Suppliers become a full mirror of the customers model: dedicated
+-- contact_person/email/phone/notes columns are replaced by the same
+-- custom_fields JSON blob customers use ({"fields":[{name,value,showLabel}],
+-- "field_order":[]}). Existing contact data is preserved as custom fields.
+
+-- AlterTable: add the custom_fields blob
+ALTER TABLE `sklad_suppliers` ADD COLUMN `custom_fields` LONGTEXT NULL AFTER `country`;
+
+-- Seed an empty container for rows that carry any contact data
+UPDATE `sklad_suppliers`
+SET `custom_fields` = JSON_OBJECT('fields', JSON_ARRAY(), 'field_order', JSON_ARRAY())
+WHERE COALESCE(`contact_person`, '') <> ''
+   OR COALESCE(`email`, '') <> ''
+   OR COALESCE(`phone`, '') <> ''
+   OR COALESCE(`notes`, '') <> '';
+
+-- Preserve data: each legacy column becomes one labeled custom field
+UPDATE `sklad_suppliers`
+SET `custom_fields` = JSON_ARRAY_APPEND(`custom_fields`, '$.fields',
+  JSON_OBJECT('name', 'Kontaktní osoba', 'value', `contact_person`, 'showLabel', TRUE))
+WHERE COALESCE(`contact_person`, '') <> '';
+
+UPDATE `sklad_suppliers`
+SET `custom_fields` = JSON_ARRAY_APPEND(`custom_fields`, '$.fields',
+  JSON_OBJECT('name', 'E-mail', 'value', `email`, 'showLabel', TRUE))
+WHERE COALESCE(`email`, '') <> '';
+
+UPDATE `sklad_suppliers`
+SET `custom_fields` = JSON_ARRAY_APPEND(`custom_fields`, '$.fields',
+  JSON_OBJECT('name', 'Telefon', 'value', `phone`, 'showLabel', TRUE))
+WHERE COALESCE(`phone`, '') <> '';
+
+UPDATE `sklad_suppliers`
+SET `custom_fields` = JSON_ARRAY_APPEND(`custom_fields`, '$.fields',
+  JSON_OBJECT('name', 'Poznámky', 'value', `notes`, 'showLabel', TRUE))
+WHERE COALESCE(`notes`, '') <> '';
+
+-- AlterTable: drop the dedicated columns
+ALTER TABLE `sklad_suppliers`
+  DROP COLUMN `contact_person`,
+  DROP COLUMN `email`,
+  DROP COLUMN `phone`,
+  DROP COLUMN `notes`;

prisma/migrations/20260610230000_ai_chat_content_json/migration.sql

@@ -0,0 +1,7 @@
+-- Odin Phase 2a: assistant turns carry structured metadata (tool-call trace,
+-- later full content blocks). `content` stays the plain-text display
+-- projection; `content_json` holds the structured form. Anticipated by the
+-- Phase-2 design notes (2026-06-08).
+
+-- AlterTable
+ALTER TABLE `ai_chat_messages` ADD COLUMN `content_json` LONGTEXT NULL AFTER `content`;

prisma/migrations/20260612160000_project_notes_edited_at/migration.sql

@@ -0,0 +1,3 @@
+-- AlterTable
+ALTER TABLE `project_notes` ADD COLUMN `edited_at` DATETIME(0) NULL;
+

prisma/schema.prisma

@@ -4,33 +4,32 @@ generator client {
 
 datasource db {
   provider = "mysql"
-  url      = env("DATABASE_URL")
 }
 
 model attendance {
-  id                 Int                    @id @default(autoincrement())
+  id                      Int                       @id @default(autoincrement())
-  user_id            Int
+  user_id                 Int
-  shift_date         DateTime               @db.Date
+  shift_date              DateTime                  @db.Date
-  arrival_time       DateTime?              @db.DateTime(0)
+  arrival_time            DateTime?                 @db.DateTime(0)
-  arrival_lat        Decimal?               @db.Decimal(10, 8)
+  arrival_lat             Decimal?                  @db.Decimal(10, 8)
-  arrival_lng        Decimal?               @db.Decimal(11, 8)
+  arrival_lng             Decimal?                  @db.Decimal(11, 8)
-  arrival_accuracy   Decimal?               @db.Decimal(10, 2)
+  arrival_accuracy        Decimal?                  @db.Decimal(10, 2)
-  arrival_address    String?                @db.VarChar(500)
+  arrival_address         String?                   @db.VarChar(500)
-  break_start        DateTime?              @db.DateTime(0)
+  break_start             DateTime?                 @db.DateTime(0)
-  break_end          DateTime?              @db.DateTime(0)
+  break_end               DateTime?                 @db.DateTime(0)
-  departure_time     DateTime?              @db.DateTime(0)
+  departure_time          DateTime?                 @db.DateTime(0)
-  departure_lat      Decimal?               @db.Decimal(10, 8)
+  departure_lat           Decimal?                  @db.Decimal(10, 8)
-  departure_lng      Decimal?               @db.Decimal(11, 8)
+  departure_lng           Decimal?                  @db.Decimal(11, 8)
-  departure_accuracy Decimal?               @db.Decimal(10, 2)
+  departure_accuracy      Decimal?                  @db.Decimal(10, 2)
-  departure_address  String?                @db.VarChar(500)
+  departure_address       String?                   @db.VarChar(500)
-  notes              String?                @db.Text
+  notes                   String?                   @db.Text
-  project_id         Int?
+  project_id              Int?
-  leave_type         attendance_leave_type? @default(work)
+  leave_type              attendance_leave_type?    @default(work)
-  leave_hours        Decimal?               @db.Decimal(4, 2)
+  leave_hours             Decimal?                  @db.Decimal(4, 2)
-  created_at         DateTime?              @default(now()) @db.Timestamp(0)
+  created_at              DateTime?                 @default(now()) @db.Timestamp(0)
-  updated_at         DateTime?              @default(now()) @db.Timestamp(0)
+  updated_at              DateTime?                 @default(now()) @db.Timestamp(0)
-  users                    users                    @relation(fields: [user_id], references: [id], onDelete: Cascade, onUpdate: NoAction, map: "attendance_ibfk_1")
+  users                   users                     @relation(fields: [user_id], references: [id], onDelete: Cascade, onUpdate: NoAction, map: "attendance_ibfk_1")
-  attendance_project_logs  attendance_project_logs[]
+  attendance_project_logs attendance_project_logs[]
 
   @@index([user_id, shift_date], map: "idx_attendance_user_date")
   @@index([user_id, departure_time], map: "idx_attendance_user_departure")
@@ -68,7 +67,6 @@ model audit_logs {
   session_id  String?   @db.VarChar(128)
   created_at  DateTime? @default(now()) @db.Timestamp(0)
 
-  @@index([created_at], map: "idx_audit_log_created")
   @@index([action], map: "idx_audit_logs_action")
   @@index([created_at], map: "idx_audit_logs_created")
   @@index([entity_type, entity_id, created_at], map: "idx_audit_logs_entity")
@@ -76,6 +74,43 @@ model audit_logs {
   @@fulltext([description], map: "idx_audit_search")
 }
 
+model ai_usage {
+  id            Int      @id @default(autoincrement())
+  user_id       Int?
+  kind          String   @db.VarChar(20)
+  model         String   @db.VarChar(50)
+  input_tokens  Int      @default(0)
+  output_tokens Int      @default(0)
+  cost_usd      Decimal  @default(0) @db.Decimal(10, 6)
+  created_at    DateTime @default(now()) @db.Timestamp(0)
+
+  @@index([created_at], map: "idx_ai_usage_created")
+}
+
+model ai_conversations {
+  id         Int                @id @default(autoincrement())
+  user_id    Int
+  title      String             @db.VarChar(255)
+  created_at DateTime           @default(now()) @db.Timestamp(0)
+  updated_at DateTime           @default(now()) @updatedAt @db.Timestamp(0)
+  messages   ai_chat_messages[]
+
+  @@index([user_id, id], map: "idx_ai_conv_user")
+}
+
+model ai_chat_messages {
+  id              Int              @id @default(autoincrement())
+  user_id         Int
+  conversation_id Int
+  role            String           @db.VarChar(20)
+  content         String           @db.Text
+  content_json    String?          @db.LongText
+  created_at      DateTime         @default(now()) @db.Timestamp(0)
+  conversation    ai_conversations @relation(fields: [conversation_id], references: [id], onDelete: Cascade)
+
+  @@index([conversation_id, id], map: "idx_ai_chat_conv")
+}
+
 model bank_accounts {
   id             Int       @id @default(autoincrement())
   account_name   String?   @db.VarChar(255)
@@ -88,52 +123,59 @@ model bank_accounts {
   position       Int?      @default(0)
   created_at     DateTime? @default(now()) @db.DateTime(0)
   modified_at    DateTime? @db.DateTime(0)
+
+  @@index([is_default], map: "idx_bank_accounts_is_default")
 }
 
 model company_settings {
-  id                Int       @id @default(autoincrement())
+  id                                 Int       @id @default(autoincrement())
-  company_name      String?   @db.VarChar(255)
+  company_name                       String?   @db.VarChar(255)
-  street            String?   @db.VarChar(255)
+  street                             String?   @db.VarChar(255)
-  city              String?   @db.VarChar(255)
+  city                               String?   @db.VarChar(255)
-  postal_code       String?   @db.VarChar(20)
+  postal_code                        String?   @db.VarChar(20)
-  country           String?   @db.VarChar(100)
+  country                            String?   @db.VarChar(100)
-  company_id        String?   @db.VarChar(50)
+  company_id                         String?   @db.VarChar(50)
-  vat_id            String?   @db.VarChar(50)
+  vat_id                             String?   @db.VarChar(50)
-  custom_fields     String?   @db.LongText
+  custom_fields                      String?   @db.LongText
-  logo_data         Bytes?
+  logo_data                          Bytes?
-  logo_data_dark    Bytes?              @db.MediumBlob
+  logo_data_dark                     Bytes?    @db.MediumBlob
-  quotation_prefix  String?   @db.VarChar(20)
+  quotation_prefix                   String?   @db.VarChar(20)
-  default_currency  String?   @default("CZK") @db.VarChar(10)
+  default_currency                   String?   @default("CZK") @db.VarChar(10)
-  default_vat_rate  Decimal?  @default(21.00) @db.Decimal(5, 2)
+  default_vat_rate                   Decimal?  @default(21.00) @db.Decimal(5, 2)
-  uuid              String?   @unique @db.VarChar(36)
+  uuid                               String?   @unique @db.VarChar(36)
-  modified_at       DateTime? @db.DateTime(0)
+  modified_at                        DateTime? @db.DateTime(0)
-  is_deleted        Boolean?  @default(false)
+  is_deleted                         Boolean?  @default(false)
-  sync_version      Int?      @default(0)
+  sync_version                       Int?      @default(0)
-  order_type_code   String?   @db.VarChar(10)
+  order_type_code                    String?   @db.VarChar(10)
-  invoice_type_code String?   @db.VarChar(10)
+  invoice_type_code                  String?   @db.VarChar(10)
-  require_2fa              Boolean   @default(false)
+  require_2fa                        Boolean   @default(false)
-  break_threshold_hours    Decimal?  @default(6.00) @db.Decimal(4, 2)
+  break_threshold_hours              Decimal?  @default(6.00) @db.Decimal(4, 2)
-  break_duration_short     Int?      @default(15)
+  break_duration_short               Int?      @default(15)
-  break_duration_long      Int?      @default(30)
+  break_duration_long                Int?      @default(30)
-  clock_rounding_minutes   Int?      @default(15)
+  clock_rounding_minutes             Int?      @default(15)
-  invoice_alert_email      String?   @db.VarChar(255)
+  invoice_alert_email                String?   @db.VarChar(255)
-  leave_notify_email       String?   @db.VarChar(255)
+  leave_notify_email                 String?   @db.VarChar(255)
-  max_login_attempts       Int?      @default(5)
+  max_login_attempts                 Int?      @default(5)
-  lockout_minutes          Int?      @default(15)
+  lockout_minutes                    Int?      @default(15)
-  max_requests_per_minute  Int?      @default(300)
+  max_requests_per_minute            Int?      @default(300)
-  available_vat_rates      String?   @db.LongText
+  available_vat_rates                String?   @db.LongText
-  available_currencies     String?   @db.LongText
+  available_currencies               String?   @db.LongText
-  smtp_from                String?   @db.VarChar(255)
+  smtp_from                          String?   @db.VarChar(255)
-  smtp_from_name           String?   @db.VarChar(255)
+  smtp_from_name                     String?   @db.VarChar(255)
-  offer_number_pattern     String?   @db.VarChar(100)
+  offer_number_pattern               String?   @db.VarChar(100)
-  order_number_pattern     String?   @db.VarChar(100)
+  order_number_pattern               String?   @db.VarChar(100)
-  invoice_number_pattern   String?   @db.VarChar(100)
+  invoice_number_pattern             String?   @db.VarChar(100)
-  warehouse_receipt_prefix          String?   @db.VarChar(20)
+  issued_order_number_pattern        String?   @db.VarChar(100)
-  warehouse_receipt_number_pattern  String?   @db.VarChar(100)
+  issued_order_type_code             String?   @db.VarChar(10)
-  warehouse_issue_prefix            String?   @db.VarChar(20)
+  project_number_pattern             String?   @db.VarChar(100)
-  warehouse_issue_number_pattern    String?   @db.VarChar(100)
+  project_type_code                  String?   @db.VarChar(10)
-  warehouse_inventory_prefix        String?   @db.VarChar(20)
+  warehouse_receipt_prefix           String?   @db.VarChar(20)
+  warehouse_receipt_number_pattern   String?   @db.VarChar(100)
+  warehouse_issue_prefix             String?   @db.VarChar(20)
+  warehouse_issue_number_pattern     String?   @db.VarChar(100)
+  warehouse_inventory_prefix         String?   @db.VarChar(20)
   warehouse_inventory_number_pattern String?   @db.VarChar(100)
+  ai_monthly_budget_usd              Decimal?  @default(50.00) @db.Decimal(10, 2)
 }
 
 model customers {
@@ -157,49 +199,49 @@ model customers {
 }
 
 model invoice_items {
-  id          Int      @id @default(autoincrement())
+  id               Int      @id @default(autoincrement())
-  invoice_id  Int
+  invoice_id       Int
-  description       String?  @db.VarChar(500)
+  description      String?  @db.VarChar(500)
   item_description String?  @db.Text
-  quantity          Decimal? @default(1.000) @db.Decimal(12, 3)
+  quantity         Decimal? @default(1.000) @db.Decimal(12, 3)
-  unit        String?  @db.VarChar(20)
+  unit             String?  @db.VarChar(20)
-  unit_price  Decimal? @default(0.00) @db.Decimal(12, 2)
+  unit_price       Decimal? @default(0.00) @db.Decimal(12, 2)
-  vat_rate    Decimal? @default(21.00) @db.Decimal(5, 2)
+  vat_rate         Decimal? @default(21.00) @db.Decimal(5, 2)
-  position    Int?     @default(0)
+  position         Int?     @default(0)
-  invoices    invoices @relation(fields: [invoice_id], references: [id], onDelete: Cascade, onUpdate: NoAction, map: "invoice_items_ibfk_1")
+  invoices         invoices @relation(fields: [invoice_id], references: [id], onDelete: Cascade, onUpdate: NoAction, map: "invoice_items_ibfk_1")
 
   @@index([invoice_id], map: "invoice_id")
 }
 
 model invoices {
-  id              Int             @id @default(autoincrement())
+  id               Int                @id @default(autoincrement())
-  invoice_number  String?         @unique(map: "idx_invoices_number_unique") @db.VarChar(50)
+  invoice_number   String?            @unique(map: "idx_invoices_number_unique") @db.VarChar(50)
-  order_id        Int?
+  order_id         Int?
-  customer_id     Int?
+  customer_id      Int?
-  status          String?         @default("issued") @db.VarChar(30)
+  status           String?            @default("issued") @db.VarChar(30)
-  currency        String?         @default("CZK") @db.VarChar(10)
+  currency         String?            @default("CZK") @db.VarChar(10)
-  vat_rate        Decimal?        @default(21.00) @db.Decimal(5, 2)
+  vat_rate         Decimal?           @default(21.00) @db.Decimal(5, 2)
-  apply_vat       Boolean?        @default(true)
+  apply_vat        Boolean?           @default(true)
-  payment_method  String?         @db.VarChar(50)
+  payment_method   String?            @db.VarChar(50)
-  constant_symbol String?         @db.VarChar(20)
+  constant_symbol  String?            @db.VarChar(20)
-  bank_name       String?         @db.VarChar(255)
+  bank_name        String?            @db.VarChar(255)
-  bank_swift      String?         @db.VarChar(20)
+  bank_swift       String?            @db.VarChar(20)
-  bank_iban       String?         @db.VarChar(50)
+  bank_iban        String?            @db.VarChar(50)
-  bank_account    String?         @db.VarChar(50)
+  bank_account     String?            @db.VarChar(50)
-  issue_date      DateTime?       @db.Date
+  issue_date       DateTime?          @db.Date
-  due_date        DateTime?       @db.Date
+  due_date         DateTime?          @db.Date
-  tax_date        DateTime?       @db.Date
+  tax_date         DateTime?          @db.Date
-  paid_date       DateTime?       @db.Date
+  paid_date        DateTime?          @db.Date
-  issued_by       String?         @db.VarChar(255)
+  issued_by        String?            @db.VarChar(255)
-  billing_text    String?         @db.VarChar(500)
+  billing_text     String?            @db.VarChar(500)
-  language        String?         @default("cs") @db.VarChar(5)
+  language         String?            @default("cs") @db.VarChar(5)
-  notes           String?         @db.Text
+  internal_notes   String?            @db.Text
-  internal_notes  String?         @db.Text
+  created_at       DateTime?          @default(now()) @db.DateTime(0)
-  created_at      DateTime?       @default(now()) @db.DateTime(0)
+  modified_at      DateTime?          @db.DateTime(0)
-  modified_at     DateTime?       @db.DateTime(0)
+  invoice_items    invoice_items[]
-  invoice_items   invoice_items[]
+  invoice_sections invoice_sections[]
-  orders          orders?         @relation(fields: [order_id], references: [id], onUpdate: NoAction, map: "invoices_ibfk_1")
+  orders           orders?            @relation(fields: [order_id], references: [id], onDelete: Restrict, onUpdate: NoAction, map: "invoices_ibfk_1")
-  customers       customers?      @relation(fields: [customer_id], references: [id], onUpdate: NoAction, map: "invoices_ibfk_2")
+  customers        customers?         @relation(fields: [customer_id], references: [id], onDelete: Restrict, onUpdate: NoAction, map: "invoices_ibfk_2")
 
   @@index([customer_id], map: "customer_id")
   @@index([due_date], map: "idx_invoices_due_date")
@@ -208,6 +250,19 @@ model invoices {
   @@index([order_id], map: "order_id")
 }
 
+model invoice_sections {
+  id          Int       @id @default(autoincrement())
+  invoice_id  Int
+  position    Int?      @default(0)
+  title       String?   @db.VarChar(500)
+  title_cz    String?   @db.VarChar(500)
+  content     String?   @db.Text
+  modified_at DateTime? @db.DateTime(0)
+  invoices    invoices  @relation(fields: [invoice_id], references: [id], onDelete: Cascade, onUpdate: NoAction, map: "invoice_sections_fk")
+
+  @@index([invoice_id], map: "invoice_sections_invoice_id")
+}
+
 model item_templates {
   id            Int       @id @default(autoincrement())
   name          String?   @db.VarChar(255)
@@ -306,8 +361,6 @@ model orders {
   status                String?          @default("prijata") @db.VarChar(30)
   currency              String?          @default("CZK") @db.VarChar(10)
   language              String?          @default("cs") @db.VarChar(5)
-  vat_rate              Decimal?         @default(21.00) @db.Decimal(5, 2)
-  apply_vat             Boolean?         @default(true)
   exchange_rate         Decimal?         @default(1.0000) @db.Decimal(10, 4)
   scope_title           String?          @db.VarChar(500)
   scope_description     String?          @db.Text
@@ -317,14 +370,76 @@ model orders {
   invoices              invoices[]
   order_items           order_items[]
   order_sections        order_sections[]
-  quotations            quotations?      @relation(fields: [quotation_id], references: [id], onUpdate: NoAction, map: "orders_ibfk_1")
+  quotations            quotations?      @relation(fields: [quotation_id], references: [id], onDelete: Restrict, onUpdate: NoAction, map: "orders_ibfk_1")
-  customers             customers?       @relation(fields: [customer_id], references: [id], onUpdate: NoAction, map: "orders_ibfk_2")
+  customers             customers?       @relation(fields: [customer_id], references: [id], onDelete: Restrict, onUpdate: NoAction, map: "orders_ibfk_2")
   projects              projects[]
 
   @@index([customer_id], map: "customer_id")
   @@index([quotation_id], map: "quotation_id")
 }
 
+model issued_orders {
+  id                    Int                     @id @default(autoincrement())
+  po_number             String?                 @unique(map: "idx_issued_orders_number_unique") @db.VarChar(50)
+  supplier_id           Int?
+  status                issued_orders_status    @default(draft)
+  currency              String?                 @default("CZK") @db.VarChar(10)
+  exchange_rate         Decimal?                @default(1.0000) @db.Decimal(10, 4)
+  order_date            DateTime?               @db.Date
+  delivery_date         DateTime?               @db.Date
+  language              String?                 @default("cs") @db.VarChar(5)
+  order_text            String?                 @db.VarChar(500)
+  internal_notes        String?                 @db.Text
+  locked_by             Int?
+  locked_at             DateTime?               @db.DateTime(0)
+  created_at            DateTime?               @default(now()) @db.DateTime(0)
+  modified_at           DateTime?               @db.DateTime(0)
+  issued_order_items    issued_order_items[]
+  issued_order_sections issued_order_sections[]
+  suppliers             sklad_suppliers?        @relation(fields: [supplier_id], references: [id], onDelete: Restrict, onUpdate: NoAction, map: "issued_orders_supplier_fk")
+
+  @@index([supplier_id], map: "issued_orders_supplier_id")
+  @@index([status, order_date], map: "idx_issued_orders_status_date")
+}
+
+// Mirrors scope_sections (offers) 1:1 — free-form bilingual rich-text sections
+// rendered on their own PDF page. Kept as a separate table (not shared) so the
+// FK cascade and per-document ordering stay simple.
+model issued_order_sections {
+  id              Int           @id @default(autoincrement())
+  issued_order_id Int
+  position        Int?          @default(0)
+  title           String?       @db.VarChar(500)
+  title_cz        String?       @db.VarChar(500)
+  content         String?       @db.Text
+  modified_at     DateTime?     @db.DateTime(0)
+  issued_orders   issued_orders @relation(fields: [issued_order_id], references: [id], onDelete: Cascade, onUpdate: NoAction, map: "issued_order_sections_fk")
+
+  @@index([issued_order_id], map: "issued_order_sections_order_id")
+}
+
+model issued_order_items {
+  id               Int           @id @default(autoincrement())
+  issued_order_id  Int
+  description      String?       @db.VarChar(500)
+  item_description String?       @db.Text
+  quantity         Decimal?      @default(1.000) @db.Decimal(12, 3)
+  unit             String?       @db.VarChar(20)
+  unit_price       Decimal?      @default(0.00) @db.Decimal(12, 2)
+  position         Int?          @default(0)
+  issued_orders    issued_orders @relation(fields: [issued_order_id], references: [id], onDelete: Cascade, onUpdate: NoAction, map: "issued_order_items_ibfk_1")
+
+  @@index([issued_order_id], map: "issued_order_id")
+}
+
+enum issued_orders_status {
+  draft
+  sent
+  confirmed
+  completed
+  cancelled
+}
+
 model permissions {
   id               Int                @id @default(autoincrement())
   name             String             @unique(map: "name") @db.VarChar(50)
@@ -342,35 +457,36 @@ model project_notes {
   user_name  String?   @db.VarChar(100)
   content    String?   @db.Text
   created_at DateTime? @default(now()) @db.DateTime(0)
+  edited_at  DateTime? @db.DateTime(0)
   projects   projects  @relation(fields: [project_id], references: [id], onDelete: Cascade, onUpdate: NoAction, map: "project_notes_ibfk_1")
 
   @@index([project_id], map: "project_id")
 }
 
 model projects {
-  id                  Int             @id @default(autoincrement())
+  id                      Int                       @id @default(autoincrement())
-  project_number      String?         @unique @db.VarChar(50)
+  project_number          String?                   @unique @db.VarChar(50)
-  name                String?         @db.VarChar(255)
+  name                    String?                   @db.VarChar(255)
-  customer_id         Int?
+  customer_id             Int?
-  responsible_user_id Int?
+  responsible_user_id     Int?
-  quotation_id        Int?
+  quotation_id            Int?
-  order_id            Int?
+  order_id                Int?
-  status              String?         @default("aktivni") @db.VarChar(30)
+  status                  String?                   @default("aktivni") @db.VarChar(30)
-  start_date          DateTime?       @db.Date
+  start_date              DateTime?                 @db.Date
-  end_date            DateTime?       @db.Date
+  end_date                DateTime?                 @db.Date
-  notes               String?         @db.Text
+  notes                   String?                   @db.Text
-  created_at          DateTime?       @default(now()) @db.DateTime(0)
+  created_at              DateTime?                 @default(now()) @db.DateTime(0)
-  modified_at         DateTime?       @db.DateTime(0)
+  modified_at             DateTime?                 @db.DateTime(0)
   attendance_project_logs attendance_project_logs[]
-  project_notes       project_notes[]
+  project_notes           project_notes[]
-  sklad_issues        sklad_issues[]
+  sklad_issues            sklad_issues[]
-  sklad_reservations  sklad_reservations[]
+  sklad_reservations      sklad_reservations[]
-  work_plan_entries   work_plan_entries[]
+  work_plan_entries       work_plan_entries[]
-  work_plan_overrides work_plan_overrides[]
+  work_plan_overrides     work_plan_overrides[]
-  users               users?          @relation(fields: [responsible_user_id], references: [id], onUpdate: NoAction, map: "fk_projects_responsible_user")
+  users                   users?                    @relation(fields: [responsible_user_id], references: [id], onUpdate: NoAction, map: "fk_projects_responsible_user")
-  customers           customers?      @relation(fields: [customer_id], references: [id], onUpdate: NoAction, map: "projects_ibfk_1")
+  customers               customers?                @relation(fields: [customer_id], references: [id], onDelete: Restrict, onUpdate: NoAction, map: "projects_ibfk_1")
-  quotations          quotations?     @relation(fields: [quotation_id], references: [id], onUpdate: NoAction, map: "projects_ibfk_2")
+  quotations              quotations?               @relation(fields: [quotation_id], references: [id], onDelete: Restrict, onUpdate: NoAction, map: "projects_ibfk_2")
-  orders              orders?         @relation(fields: [order_id], references: [id], onUpdate: NoAction, map: "projects_ibfk_3")
+  orders                  orders?                   @relation(fields: [order_id], references: [id], onDelete: Restrict, onUpdate: NoAction, map: "projects_ibfk_3")
 
   @@index([customer_id], map: "customer_id")
   @@index([responsible_user_id], map: "fk_projects_responsible_user")
@@ -395,28 +511,26 @@ model quotation_items {
 }
 
 model quotations {
-  id                 Int               @id @default(autoincrement())
+  id                Int               @id @default(autoincrement())
-  quotation_number   String?           @unique @db.VarChar(50)
+  quotation_number  String?           @unique @db.VarChar(50)
-  project_code       String?           @db.VarChar(100)
+  project_code      String?           @db.VarChar(100)
-  customer_id        Int?
+  customer_id       Int?
-  created_at         DateTime?         @default(now()) @db.DateTime(0)
+  created_at        DateTime?         @default(now()) @db.DateTime(0)
-  valid_until        DateTime?         @db.Date
+  valid_until       DateTime?         @db.Date
-  currency           String?           @default("CZK") @db.VarChar(10)
+  currency          String?           @default("CZK") @db.VarChar(10)
-  language           String?           @default("cs") @db.VarChar(5)
+  language          String?           @default("cs") @db.VarChar(5)
-  vat_rate           Decimal?          @default(21.00) @db.Decimal(5, 2)
+  order_id          Int?
-  apply_vat          Boolean?          @default(true)
+  status            String            @default("active") @db.VarChar(20)
-  order_id           Int?
+  scope_title       String?           @db.VarChar(500)
-  status             String            @default("active") @db.VarChar(20)
+  scope_description String?           @db.Text
-  scope_title        String?           @db.VarChar(500)
+  locked_by         Int?
-  scope_description  String?           @db.Text
+  locked_at         DateTime?         @db.DateTime(0)
-  locked_by          Int?
+  modified_at       DateTime?         @db.DateTime(0)
-  locked_at          DateTime?         @db.DateTime(0)
+  orders            orders[]
-  modified_at        DateTime?         @db.DateTime(0)
+  projects          projects[]
-  orders             orders[]
+  quotation_items   quotation_items[]
-  projects           projects[]
+  customers         customers?        @relation(fields: [customer_id], references: [id], onDelete: Restrict, onUpdate: NoAction, map: "quotations_ibfk_1")
-  quotation_items    quotation_items[]
+  scope_sections    scope_sections[]
-  customers          customers?        @relation(fields: [customer_id], references: [id], onUpdate: NoAction, map: "quotations_ibfk_1")
-  scope_sections     scope_sections[]
 
   @@index([customer_id], map: "customer_id")
   @@index([quotation_number], map: "idx_quotations_number")
@@ -490,14 +604,14 @@ model roles {
 }
 
 model scope_sections {
-  id                    Int        @id @default(autoincrement())
+  id           Int        @id @default(autoincrement())
-  quotation_id          Int
+  quotation_id Int
-  position              Int?       @default(0)
+  position     Int?       @default(0)
-  title                 String?    @db.VarChar(500)
+  title        String?    @db.VarChar(500)
-  title_cz              String?    @db.VarChar(500)
+  title_cz     String?    @db.VarChar(500)
-  content               String?    @db.Text
+  content      String?    @db.Text
-  modified_at           DateTime?  @db.DateTime(0)
+  modified_at  DateTime?  @db.DateTime(0)
-  quotations            quotations @relation(fields: [quotation_id], references: [id], onDelete: Cascade, onUpdate: NoAction, map: "scope_sections_ibfk_1")
+  quotations   quotations @relation(fields: [quotation_id], references: [id], onDelete: Cascade, onUpdate: NoAction, map: "scope_sections_ibfk_1")
 
   @@index([quotation_id], map: "quotation_id")
 }
@@ -566,38 +680,38 @@ model trips {
 }
 
 model users {
-  id                                               Int              @id @default(autoincrement())
+  id                                               Int                   @id @default(autoincrement())
-  username                                         String           @unique(map: "username") @db.VarChar(50)
+  username                                         String                @unique(map: "username") @db.VarChar(50)
-  email                                            String           @unique(map: "email") @db.VarChar(255)
+  email                                            String                @unique(map: "email") @db.VarChar(255)
-  password_hash                                    String           @db.VarChar(255)
+  password_hash                                    String                @db.VarChar(255)
-  first_name                                       String           @db.VarChar(50)
+  first_name                                       String                @db.VarChar(50)
-  last_name                                        String           @db.VarChar(50)
+  last_name                                        String                @db.VarChar(50)
   role_id                                          Int?
-  is_active                                        Boolean?         @default(true)
+  is_active                                        Boolean?              @default(true)
-  last_login                                       DateTime?        @db.Timestamp(0)
+  last_login                                       DateTime?             @db.Timestamp(0)
-  failed_login_attempts                            Int?             @default(0)
+  failed_login_attempts                            Int?                  @default(0)
-  locked_until                                     DateTime?        @db.Timestamp(0)
+  locked_until                                     DateTime?             @db.Timestamp(0)
-  password_changed_at                              DateTime?        @default(now()) @db.Timestamp(0)
+  password_changed_at                              DateTime?             @default(now()) @db.Timestamp(0)
-  created_at                                       DateTime?        @default(now()) @db.Timestamp(0)
+  created_at                                       DateTime?             @default(now()) @db.Timestamp(0)
-  updated_at                                       DateTime?        @default(now()) @db.Timestamp(0)
+  updated_at                                       DateTime?             @default(now()) @db.Timestamp(0)
-  totp_secret                                      String?          @db.VarChar(255)
+  totp_secret                                      String?               @db.VarChar(255)
-  totp_enabled                                     Boolean          @default(false)
+  totp_enabled                                     Boolean               @default(false)
-  totp_backup_codes                                String?          @db.Text
+  totp_backup_codes                                String?               @db.Text
   totp_last_used_counter                           Int?
   attendance                                       attendance[]
   leave_balances                                   leave_balances[]
-  leave_requests_leave_requests_user_idTousers     leave_requests[] @relation("leave_requests_user_idTousers")
+  leave_requests_leave_requests_user_idTousers     leave_requests[]      @relation("leave_requests_user_idTousers")
-  leave_requests_leave_requests_reviewer_idTousers leave_requests[] @relation("leave_requests_reviewer_idTousers")
+  leave_requests_leave_requests_reviewer_idTousers leave_requests[]      @relation("leave_requests_reviewer_idTousers")
   projects                                         projects[]
   trips                                            trips[]
-  sklad_receipts_received                          sklad_receipts[] @relation("SkladReceivedBy")
+  sklad_receipts_received                          sklad_receipts[]      @relation("SkladReceivedBy")
-  sklad_issues_issued                              sklad_issues[]   @relation("SkladIssuedBy")
+  sklad_issues_issued                              sklad_issues[]        @relation("SkladIssuedBy")
-  sklad_reservations                               sklad_reservations[] @relation("SkladReservedBy")
+  sklad_reservations                               sklad_reservations[]  @relation("SkladReservedBy")
-  work_plan_entries                                work_plan_entries[] @relation("work_plan_entries_creator")
+  work_plan_entries                                work_plan_entries[]   @relation("work_plan_entries_creator")
   work_plan_entries_owned                          work_plan_entries[]
   work_plan_overrides                              work_plan_overrides[] @relation("work_plan_overrides_creator")
   work_plan_overrides_owned                        work_plan_overrides[]
-  roles                                            roles?           @relation(fields: [role_id], references: [id], onUpdate: NoAction, map: "users_ibfk_1")
+  roles                                            roles?                @relation(fields: [role_id], references: [id], onUpdate: NoAction, map: "users_ibfk_1")
 
   @@index([is_active], map: "idx_users_is_active")
   @@index([role_id], map: "idx_users_role_id")
@@ -692,20 +806,21 @@ model sklad_categories {
 }
 
 model sklad_suppliers {
-  id             Int       @id @default(autoincrement())
+  id            Int       @id @default(autoincrement())
-  name           String    @db.VarChar(255)
+  name          String    @db.VarChar(255)
-  ico            String?   @db.VarChar(20)
+  ico           String?   @db.VarChar(20)
-  dic            String?   @db.VarChar(20)
+  dic           String?   @db.VarChar(20)
-  contact_person String?  @db.VarChar(255)
+  street        String?   @db.VarChar(255)
-  email          String?   @db.VarChar(255)
+  city          String?   @db.VarChar(255)
-  phone          String?   @db.VarChar(50)
+  postal_code   String?   @db.VarChar(20)
-  address        String?   @db.Text
+  country       String?   @db.VarChar(100)
-  notes          String?   @db.Text
+  custom_fields String?   @db.LongText
-  is_active      Boolean   @default(true)
+  is_active     Boolean   @default(true)
-  created_at     DateTime? @default(now()) @db.DateTime(0)
+  created_at    DateTime? @default(now()) @db.DateTime(0)
-  modified_at    DateTime? @db.DateTime(0)
+  modified_at   DateTime? @db.DateTime(0)
 
-  receipts sklad_receipts[]
+  receipts      sklad_receipts[]
+  issued_orders issued_orders[]
 
   @@map("sklad_suppliers")
 }
@@ -719,7 +834,7 @@ model sklad_locations {
   created_at  DateTime? @default(now()) @db.DateTime(0)
   modified_at DateTime? @db.DateTime(0)
 
-  items sklad_item_locations[]
+  items           sklad_item_locations[]
   receipt_lines   sklad_receipt_lines[]
   issue_lines     sklad_issue_lines[]
   inventory_lines sklad_inventory_lines[]
@@ -728,19 +843,19 @@ model sklad_locations {
 }
 
 model sklad_items {
-  id              Int       @id @default(autoincrement())
+  id           Int       @id @default(autoincrement())
-  item_number     String?   @unique @db.VarChar(50)
+  item_number  String?   @unique @db.VarChar(50)
-  name            String    @db.VarChar(255)
+  name         String    @db.VarChar(255)
-  description     String?   @db.Text
+  description  String?   @db.Text
-  category_id     Int?
+  category_id  Int?
-  unit            String    @db.VarChar(20)
+  unit         String    @db.VarChar(20)
-  min_quantity    Decimal?  @db.Decimal(12, 3)
+  min_quantity Decimal?  @db.Decimal(12, 3)
-  is_active       Boolean   @default(true)
+  is_active    Boolean   @default(true)
-  notes           String?   @db.Text
+  notes        String?   @db.Text
-  created_at      DateTime? @default(now()) @db.DateTime(0)
+  created_at   DateTime? @default(now()) @db.DateTime(0)
-  modified_at     DateTime? @db.DateTime(0)
+  modified_at  DateTime? @db.DateTime(0)
 
-  category        sklad_categories?  @relation(fields: [category_id], references: [id])
+  category        sklad_categories?       @relation(fields: [category_id], references: [id], onDelete: SetNull)
   batches         sklad_batches[]
   item_locations  sklad_item_locations[]
   receipt_lines   sklad_receipt_lines[]
@@ -755,170 +870,174 @@ model sklad_items {
 model sklad_batches {
   id              Int       @id @default(autoincrement())
   item_id         Int
-  receipt_line_id Int      @unique
+  receipt_line_id Int       @unique
-  quantity         Decimal   @db.Decimal(12, 3)
+  quantity        Decimal   @db.Decimal(12, 3)
   original_qty    Decimal   @db.Decimal(12, 3)
   unit_price      Decimal   @db.Decimal(12, 2)
   received_at     DateTime? @db.DateTime(0)
   is_consumed     Boolean   @default(false)
 
-  item            sklad_items       @relation(fields: [item_id], references: [id])
+  item         sklad_items         @relation(fields: [item_id], references: [id], onDelete: Restrict)
-  receipt_line    sklad_receipt_lines @relation(fields: [receipt_line_id], references: [id])
+  receipt_line sklad_receipt_lines @relation(fields: [receipt_line_id], references: [id], onDelete: Restrict)
-  issue_lines     sklad_issue_lines[]
+  issue_lines  sklad_issue_lines[]
 
   @@index([item_id, is_consumed, received_at], map: "sklad_batches_fifo")
   @@map("sklad_batches")
 }
 
 model sklad_item_locations {
-  id          Int       @id @default(autoincrement())
+  id          Int     @id @default(autoincrement())
   item_id     Int
   location_id Int
-  quantity    Decimal   @default(0) @db.Decimal(12, 3)
+  quantity    Decimal @default(0) @db.Decimal(12, 3)
 
-  item        sklad_items     @relation(fields: [item_id], references: [id])
+  item     sklad_items     @relation(fields: [item_id], references: [id], onDelete: Restrict)
-  location    sklad_locations @relation(fields: [location_id], references: [id])
+  location sklad_locations @relation(fields: [location_id], references: [id], onDelete: Restrict)
 
   @@unique([item_id, location_id], map: "sklad_item_locations_unique")
   @@map("sklad_item_locations")
 }
 
 model sklad_receipts {
-  id                    Int       @id @default(autoincrement())
+  id                   Int                  @id @default(autoincrement())
-  receipt_number         String?   @db.VarChar(50)
+  receipt_number       String?              @unique @db.VarChar(50)
-  supplier_id            Int?
+  supplier_id          Int?
-  delivery_note_number   String?   @db.VarChar(100)
+  delivery_note_number String?              @db.VarChar(100)
-  delivery_note_date     DateTime? @db.DateTime(0)
+  delivery_note_date   DateTime?            @db.DateTime(0)
-  received_by            Int?
+  received_by          Int?
-  notes                  String?   @db.Text
+  notes                String?              @db.Text
-  status                 sklad_receipt_status @default(DRAFT)
+  status               sklad_receipt_status @default(DRAFT)
-  created_at             DateTime? @default(now()) @db.DateTime(0)
+  created_at           DateTime?            @default(now()) @db.DateTime(0)
-  modified_at            DateTime? @db.DateTime(0)
+  modified_at          DateTime?            @db.DateTime(0)
 
-  supplier               sklad_suppliers? @relation(fields: [supplier_id], references: [id])
+  supplier         sklad_suppliers?            @relation(fields: [supplier_id], references: [id], onDelete: SetNull)
-  received_by_user       users? @relation("SkladReceivedBy", fields: [received_by], references: [id])
+  received_by_user users?                      @relation("SkladReceivedBy", fields: [received_by], references: [id], onDelete: SetNull)
-  items                  sklad_receipt_lines[]
+  items            sklad_receipt_lines[]
-  attachments            sklad_receipt_attachments[]
+  attachments      sklad_receipt_attachments[]
 
+  @@index([supplier_id], map: "sklad_receipts_supplier_id")
+  @@index([received_by], map: "sklad_receipts_received_by")
   @@map("sklad_receipts")
 }
 
 model sklad_receipt_lines {
-  id          Int       @id @default(autoincrement())
+  id          Int     @id @default(autoincrement())
   receipt_id  Int
   item_id     Int
-  quantity    Decimal   @db.Decimal(12, 3)
+  quantity    Decimal @db.Decimal(12, 3)
-  unit_price  Decimal   @db.Decimal(12, 2)
+  unit_price  Decimal @db.Decimal(12, 2)
   location_id Int?
-  notes       String?   @db.VarChar(255)
+  notes       String? @db.VarChar(255)
 
-  receipt     sklad_receipts @relation(fields: [receipt_id], references: [id])
+  receipt  sklad_receipts   @relation(fields: [receipt_id], references: [id], onDelete: Cascade)
-  item        sklad_items @relation(fields: [item_id], references: [id])
+  item     sklad_items      @relation(fields: [item_id], references: [id], onDelete: Restrict)
-  location    sklad_locations? @relation(fields: [location_id], references: [id])
+  location sklad_locations? @relation(fields: [location_id], references: [id], onDelete: Restrict)
-  batch       sklad_batches?
+  batch    sklad_batches?
 
   @@index([receipt_id], map: "sklad_receipt_lines_receipt_id")
   @@map("sklad_receipt_lines")
 }
 
 model sklad_receipt_attachments {
-  id          Int       @id @default(autoincrement())
+  id         Int       @id @default(autoincrement())
-  receipt_id  Int
+  receipt_id Int
-  file_name   String    @db.VarChar(255)
+  file_name  String    @db.VarChar(255)
-  file_mime   String    @db.VarChar(100)
+  file_mime  String    @db.VarChar(100)
-  file_size   Int
+  file_size  Int
-  file_path   String    @db.VarChar(500)
+  file_path  String    @db.VarChar(500)
-  created_at  DateTime? @default(now()) @db.DateTime(0)
+  created_at DateTime? @default(now()) @db.DateTime(0)
 
-  receipt     sklad_receipts @relation(fields: [receipt_id], references: [id])
+  receipt sklad_receipts @relation(fields: [receipt_id], references: [id], onDelete: Cascade)
 
   @@map("sklad_receipt_attachments")
 }
 
 model sklad_issues {
-  id            Int       @id @default(autoincrement())
+  id           Int                @id @default(autoincrement())
-  issue_number  String?   @db.VarChar(50)
+  issue_number String?            @unique @db.VarChar(50)
-  project_id    Int
+  project_id   Int
-  issued_by     Int?
+  issued_by    Int?
-  notes         String?   @db.Text
+  notes        String?            @db.Text
-  status        sklad_issue_status @default(DRAFT)
+  status       sklad_issue_status @default(DRAFT)
-  created_at    DateTime? @default(now()) @db.DateTime(0)
+  created_at   DateTime?          @default(now()) @db.DateTime(0)
-  modified_at   DateTime? @db.DateTime(0)
+  modified_at  DateTime?          @db.DateTime(0)
 
-  project       projects @relation(fields: [project_id], references: [id])
+  project        projects            @relation(fields: [project_id], references: [id], onDelete: Restrict)
-  issued_by_user users? @relation("SkladIssuedBy", fields: [issued_by], references: [id])
+  issued_by_user users?              @relation("SkladIssuedBy", fields: [issued_by], references: [id], onDelete: SetNull)
-  items         sklad_issue_lines[]
+  items          sklad_issue_lines[]
 
+  @@index([project_id], map: "sklad_issues_project_id")
+  @@index([issued_by], map: "sklad_issues_issued_by")
   @@map("sklad_issues")
 }
 
 model sklad_issue_lines {
-  id             Int       @id @default(autoincrement())
+  id             Int     @id @default(autoincrement())
   issue_id       Int
   item_id        Int
   batch_id       Int
-  quantity       Decimal   @db.Decimal(12, 3)
+  quantity       Decimal @db.Decimal(12, 3)
   location_id    Int?
   reservation_id Int?
-  notes          String?   @db.VarChar(255)
+  notes          String? @db.VarChar(255)
 
-  issue          sklad_issues @relation(fields: [issue_id], references: [id])
+  issue       sklad_issues        @relation(fields: [issue_id], references: [id], onDelete: Cascade)
-  item           sklad_items @relation(fields: [item_id], references: [id])
+  item        sklad_items         @relation(fields: [item_id], references: [id], onDelete: Restrict)
-  batch          sklad_batches @relation(fields: [batch_id], references: [id])
+  batch       sklad_batches       @relation(fields: [batch_id], references: [id], onDelete: Restrict)
-  location       sklad_locations? @relation(fields: [location_id], references: [id])
+  location    sklad_locations?    @relation(fields: [location_id], references: [id], onDelete: Restrict)
-  reservation    sklad_reservations? @relation(fields: [reservation_id], references: [id])
+  reservation sklad_reservations? @relation(fields: [reservation_id], references: [id], onDelete: SetNull)
 
   @@index([issue_id], map: "sklad_issue_lines_issue_id")
   @@map("sklad_issue_lines")
 }
 
 model sklad_reservations {
-  id            Int       @id @default(autoincrement())
+  id            Int                      @id @default(autoincrement())
   item_id       Int
   project_id    Int
-  quantity       Decimal   @db.Decimal(12, 3)
+  quantity      Decimal                  @db.Decimal(12, 3)
-  remaining_qty Decimal   @db.Decimal(12, 3)
+  remaining_qty Decimal                  @db.Decimal(12, 3)
   reserved_by   Int?
-  notes         String?   @db.Text
+  notes         String?                  @db.Text
   status        sklad_reservation_status @default(ACTIVE)
-  created_at    DateTime? @default(now()) @db.DateTime(0)
+  created_at    DateTime?                @default(now()) @db.DateTime(0)
-  modified_at   DateTime? @db.DateTime(0)
+  modified_at   DateTime?                @db.DateTime(0)
 
-  item            sklad_items @relation(fields: [item_id], references: [id])
+  item             sklad_items         @relation(fields: [item_id], references: [id], onDelete: Restrict)
-  project         projects @relation(fields: [project_id], references: [id])
+  project          projects            @relation(fields: [project_id], references: [id], onDelete: Restrict)
-  reserved_by_user users? @relation("SkladReservedBy", fields: [reserved_by], references: [id])
+  reserved_by_user users?              @relation("SkladReservedBy", fields: [reserved_by], references: [id], onDelete: SetNull)
-  issue_lines     sklad_issue_lines[]
+  issue_lines      sklad_issue_lines[]
 
   @@index([item_id, status], map: "sklad_reservations_item_status")
   @@map("sklad_reservations")
 }
 
 model sklad_inventory_sessions {
-  id              Int       @id @default(autoincrement())
+  id             Int                    @id @default(autoincrement())
-  session_number  String?   @db.VarChar(50)
+  session_number String?                @unique @db.VarChar(50)
-  notes           String?   @db.Text
+  notes          String?                @db.Text
-  status          sklad_inventory_status @default(DRAFT)
+  status         sklad_inventory_status @default(DRAFT)
-  created_at      DateTime? @default(now()) @db.DateTime(0)
+  created_at     DateTime?              @default(now()) @db.DateTime(0)
-  modified_at     DateTime? @db.DateTime(0)
+  modified_at    DateTime?              @db.DateTime(0)
 
-  items           sklad_inventory_lines[]
+  items sklad_inventory_lines[]
 
   @@map("sklad_inventory_sessions")
 }
 
 model sklad_inventory_lines {
-  id          Int       @id @default(autoincrement())
+  id          Int     @id @default(autoincrement())
   session_id  Int
   item_id     Int
   location_id Int?
-  system_qty  Decimal   @db.Decimal(12, 3)
+  system_qty  Decimal @db.Decimal(12, 3)
-  actual_qty  Decimal   @db.Decimal(12, 3)
+  actual_qty  Decimal @db.Decimal(12, 3)
-  difference  Decimal   @db.Decimal(12, 3)
+  difference  Decimal @db.Decimal(12, 3)
-  notes       String?   @db.VarChar(255)
+  notes       String? @db.VarChar(255)
 
-  session     sklad_inventory_sessions @relation(fields: [session_id], references: [id])
+  session  sklad_inventory_sessions @relation(fields: [session_id], references: [id], onDelete: Cascade)
-  item        sklad_items @relation(fields: [item_id], references: [id])
+  item     sklad_items              @relation(fields: [item_id], references: [id], onDelete: Restrict)
-  location    sklad_locations? @relation(fields: [location_id], references: [id])
+  location sklad_locations?         @relation(fields: [location_id], references: [id], onDelete: Restrict)
 
   @@index([session_id], map: "sklad_inventory_lines_session_id")
   @@map("sklad_inventory_lines")
@@ -936,20 +1055,20 @@ model plan_categories {
 }
 
 model work_plan_entries {
-  id         Int             @id @default(autoincrement())
+  id         Int       @id @default(autoincrement())
   user_id    Int
-  date_from  DateTime        @db.Date
+  date_from  DateTime  @db.Date
-  date_to    DateTime        @db.Date
+  date_to    DateTime  @db.Date
   project_id Int?
-  category   String          @default("work") @db.VarChar(50)
+  category   String    @default("work") @db.VarChar(50)
-  note       String          @db.VarChar(500)
+  note       String    @db.VarChar(500)
   created_by Int
-  created_at DateTime?       @default(now()) @db.Timestamp(0)
+  created_at DateTime? @default(now()) @db.Timestamp(0)
-  updated_at DateTime?       @default(now()) @db.Timestamp(0)
+  updated_at DateTime? @default(now()) @db.Timestamp(0)
-  is_deleted Boolean?        @default(false)
+  is_deleted Boolean?  @default(false)
-  users      users           @relation(fields: [user_id], references: [id], onDelete: Cascade, onUpdate: NoAction)
+  users      users     @relation(fields: [user_id], references: [id], onDelete: Cascade, onUpdate: NoAction)
-  projects   projects?       @relation(fields: [project_id], references: [id], onDelete: SetNull, onUpdate: NoAction)
+  projects   projects? @relation(fields: [project_id], references: [id], onDelete: SetNull, onUpdate: NoAction)
-  creator    users           @relation("work_plan_entries_creator", fields: [created_by], references: [id], onDelete: Restrict, onUpdate: NoAction)
+  creator    users     @relation("work_plan_entries_creator", fields: [created_by], references: [id], onDelete: Restrict, onUpdate: NoAction)
 
   @@index([user_id, date_from], map: "idx_wpe_user_from")
   @@index([user_id, date_to], map: "idx_wpe_user_to")
@@ -958,19 +1077,19 @@ model work_plan_entries {
 }
 
 model work_plan_overrides {
-  id         Int           @id @default(autoincrement())
+  id         Int       @id @default(autoincrement())
   user_id    Int
-  shift_date DateTime      @db.Date
+  shift_date DateTime  @db.Date
   project_id Int?
-  category   String        @db.VarChar(50)
+  category   String    @db.VarChar(50)
-  note       String        @db.VarChar(500)
+  note       String    @db.VarChar(500)
   created_by Int
-  created_at DateTime?     @default(now()) @db.Timestamp(0)
+  created_at DateTime? @default(now()) @db.Timestamp(0)
-  updated_at DateTime?     @default(now()) @db.Timestamp(0)
+  updated_at DateTime? @default(now()) @db.Timestamp(0)
-  is_deleted Boolean?      @default(false)
+  is_deleted Boolean?  @default(false)
-  users      users         @relation(fields: [user_id], references: [id], onDelete: Cascade, onUpdate: NoAction)
+  users      users     @relation(fields: [user_id], references: [id], onDelete: Cascade, onUpdate: NoAction)
-  projects   projects?     @relation(fields: [project_id], references: [id], onDelete: SetNull, onUpdate: NoAction)
+  projects   projects? @relation(fields: [project_id], references: [id], onDelete: SetNull, onUpdate: NoAction)
-  creator    users         @relation("work_plan_overrides_creator", fields: [created_by], references: [id], onDelete: Restrict, onUpdate: NoAction)
+  creator    users     @relation("work_plan_overrides_creator", fields: [created_by], references: [id], onDelete: Restrict, onUpdate: NoAction)
 
   @@index([user_id, shift_date], map: "idx_wpo_user_date")
   @@index([shift_date], map: "idx_wpo_date")

prisma/seed.ts

@@ -1,7 +1,8 @@
-import { PrismaClient } from "@prisma/client";
+import "dotenv/config";
 import bcrypt from "bcryptjs";
-
+// Use the shared, adapter-wired client (Prisma 7 needs a driver adapter).
-const prisma = new PrismaClient();
+// dotenv is imported first so DATABASE_URL is set before database.ts reads it.
+import prisma from "../src/config/database";
 
 const PERMISSIONS: {
   name: string;
@@ -94,12 +95,6 @@ const PERMISSIONS: {
     module: "offers",
     description: "Mazat nabídky",
   },
-  {
-    name: "offers.export",
-    display_name: "Exportovat nabídku",
-    module: "offers",
-    description: "Exportovat nabídky do PDF",
-  },
 
   // Objednávky
   {
@@ -126,12 +121,6 @@ const PERMISSIONS: {
     module: "orders",
     description: "Mazat objednávky",
   },
-  {
-    name: "orders.export",
-    display_name: "Exportovat objednávku",
-    module: "orders",
-    description: "Exportovat objednávky do PDF",
-  },
 
   // Faktury
   {
@@ -158,12 +147,6 @@ const PERMISSIONS: {
     module: "invoices",
     description: "Mazat faktury",
   },
-  {
-    name: "invoices.export",
-    display_name: "Exportovat fakturu",
-    module: "invoices",
-    description: "Exportovat faktury do PDF",
-  },
 
   // Projekty
   {
@@ -312,9 +295,35 @@ const PERMISSIONS: {
     module: "warehouse",
     description: "Vytvářet a potvrzovat inventurní sčítkání",
   },
+
+  // AI asistent (Odin) — mirrors migration 20260608120000_add_ai_assistant;
+  // the seed WIPES permissions, so every migration-added permission must also
+  // live here or a dev reseed silently loses it (happened 2026-06-10).
+  {
+    name: "ai.use",
+    display_name: "AI asistent",
+    module: "ai",
+    description: "Používat AI asistenta (chat a import faktur)",
+  },
 ];
 
 async function main() {
+  // HARD PRODUCTION GUARD: this seed unconditionally wipes ALL permissions and
+  // role_permissions (and seeds an admin/admin user) — purely dev-convenience
+  // behavior. Production baseline data must come from tracked Prisma migrations,
+  // never from the seed (see CLAUDE.md "Database Migrations"). Refuse to run on
+  // production so the destructive wipe can never hit a live database.
+  if (process.env.APP_ENV === "production") {
+    throw new Error(
+      "Odmítnuto: prisma/seed.ts NESMÍ běžet na produkci (APP_ENV=production). " +
+        "Seed maže všechna oprávnění a je určen pouze pro vývoj. " +
+        "Produkční data musí být zavedena migrací.\n" +
+        "Refusing to run: prisma/seed.ts must NEVER run on production " +
+        "(APP_ENV=production). It wipes all permissions and is dev-only; " +
+        "seed production baseline data via a migration instead.",
+    );
+  }
+
   console.log("Seeding permissions...");
 
   // 1. Clear existing permissions and re-insert current set

scripts/migrate-received-invoices-to-nas.ts

@@ -5,10 +5,10 @@
  */
 
 import "../src/config/env";
-import { PrismaClient } from "@prisma/client";
+import fs from "fs";
 import { nasFinancialsManager } from "../src/services/nas-financials-manager";
-
+// Shared adapter-wired client (Prisma 7 needs a driver adapter).
-const prisma = new PrismaClient();
+import prisma from "../src/config/database";
 
 async function main() {
   if (!nasFinancialsManager.isConfigured()) {
@@ -51,6 +51,39 @@ async function main() {
       continue;
     }
 
+    // Read-back verification before we null out the ONLY DB copy of the bytes.
+    // The manager uses writeFileSync (synchronous) and returns a relative path;
+    // resolve it back to disk and confirm the file exists and its size matches
+    // the source buffer. A 0-byte/truncated/corrupt write would otherwise lose
+    // the invoice permanently once file_data is set to null. If verification
+    // fails we KEEP file_data and report the row as failed.
+    const expectedSize = rec.file_data.length;
+    const readBack = nasFinancialsManager.readReceivedInvoice(result.filePath);
+    let writtenSize = -1;
+    if (readBack) {
+      writtenSize = readBack.data.length;
+    } else {
+      // Fall back to a direct stat in case readReceivedInvoice's path guard
+      // rejects an otherwise-valid path; either way we need a confirmed size.
+      try {
+        writtenSize = fs.statSync(
+          (nasFinancialsManager as unknown as { basePath: string }).basePath +
+            "/" +
+            result.filePath,
+        ).size;
+      } catch {
+        writtenSize = -1;
+      }
+    }
+
+    if (writtenSize !== expectedSize) {
+      console.error(
+        `  FAIL id=${rec.id}: read-back mismatch (expected ${expectedSize} bytes, got ${writtenSize}); keeping DB copy`,
+      );
+      failed++;
+      continue;
+    }
+
     await prisma.received_invoices.update({
       where: { id: rec.id },
       data: { file_path: result.filePath, file_data: null },

scripts/rotate-totp-key.ts

@@ -1,35 +1,29 @@
-import crypto from 'crypto';
+import "dotenv/config";
-import { PrismaClient } from '@prisma/client';
+import { decryptWithKey, encryptWithKey } from "../src/utils/encryption";
+// Shared adapter-wired client (Prisma 7 needs a driver adapter).
+import prisma from "../src/config/database";
 
-const prisma = new PrismaClient();
+// Reuse the dual-format decrypt/encrypt from src/utils/encryption.ts so this
-
+// script handles BOTH wire formats: the TS `hex:hex:hex` form and the
-function decrypt(ciphertext: string, keyHex: string): string {
+// PHP-legacy single-base64 blob. The previous hand-rolled `decrypt` only parsed
-  const key = Buffer.from(keyHex, 'hex');
+// the TS form and threw `Buffer.from(undefined, 'hex')` on any legacy secret —
-  const [ivHex, encHex, tagHex] = ciphertext.split(':');
+// inside the $transaction that aborted/rolled back the ENTIRE batch on the first
-  const iv = Buffer.from(ivHex, 'hex');
+// legacy user. These key-parameterized helpers accept the old/new keys passed on
-  const encrypted = Buffer.from(encHex, 'hex');
+// the command line (the config-bound `decrypt`/`encrypt` use the env key only).
-  const tag = Buffer.from(tagHex, 'hex');
+const decrypt = (ciphertext: string, keyHex: string): string =>
-  const decipher = crypto.createDecipheriv('aes-256-gcm', key, iv);
+  decryptWithKey(ciphertext, keyHex);
-  decipher.setAuthTag(tag);
+const encrypt = (plaintext: string, keyHex: string): string =>
-  return decipher.update(encrypted, undefined, 'utf8') + decipher.final('utf8');
+  encryptWithKey(plaintext, keyHex);
-}
-
-function encrypt(plaintext: string, keyHex: string): string {
-  const key = Buffer.from(keyHex, 'hex');
-  const iv = crypto.randomBytes(12);
-  const cipher = crypto.createCipheriv('aes-256-gcm', key, iv);
-  const encrypted = Buffer.concat([cipher.update(plaintext, 'utf8'), cipher.final()]);
-  const tag = cipher.getAuthTag();
-  return `${iv.toString('hex')}:${encrypted.toString('hex')}:${tag.toString('hex')}`;
-}
 
 async function main() {
   const oldKey = process.argv[2];
   const newKey = process.argv[3];
-  const dryRun = process.argv.includes('--dry-run');
+  const dryRun = process.argv.includes("--dry-run");
 
   if (!oldKey || !newKey) {
-    console.error('Usage: tsx scripts/rotate-totp-key.ts <old-key-hex> <new-key-hex> [--dry-run]');
+    console.error(
+      "Usage: tsx scripts/rotate-totp-key.ts <old-key-hex> <new-key-hex> [--dry-run]",
+    );
     process.exit(1);
   }
 
@@ -46,12 +40,14 @@ async function main() {
         const decrypted = decrypt(user.totp_secret!, oldKey);
         const reEncrypted = encrypt(decrypted, newKey);
         decrypt(reEncrypted, newKey); // verify round-trip
-        console.log(`  [OK] ${user.username} (id=${user.id}) — decryption and re-encryption verified`);
+        console.log(
+          `  [OK] ${user.username} (id=${user.id}) — decryption and re-encryption verified`,
+        );
       } catch (e) {
         console.error(`  [FAIL] ${user.username} (id=${user.id}) — ${e}`);
       }
     }
-    console.log('\nDry run complete. No changes made.');
+    console.log("\nDry run complete. No changes made.");
     return;
   }
 
@@ -59,13 +55,19 @@ async function main() {
     for (const user of users) {
       const decrypted = decrypt(user.totp_secret!, oldKey);
       const reEncrypted = encrypt(decrypted, newKey);
-      await tx.users.update({ where: { id: user.id }, data: { totp_secret: reEncrypted } });
+      await tx.users.update({
+        where: { id: user.id },
+        data: { totp_secret: reEncrypted },
+      });
       console.log(`  Re-encrypted TOTP for ${user.username} (id=${user.id})`);
     }
   });
 
-  console.log('\nAll TOTP secrets re-encrypted successfully.');
+  console.log("\nAll TOTP secrets re-encrypted successfully.");
   await prisma.$disconnect();
 }
 
-main().catch((e) => { console.error(e); process.exit(1); });
+main().catch((e) => {
+  console.error(e);
+  process.exit(1);
+});

src/__tests__/ai-budget-permission.test.ts

@@ -0,0 +1,137 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import Fastify from "fastify";
+import cookie from "@fastify/cookie";
+import rateLimit from "@fastify/rate-limit";
+import jwt from "jsonwebtoken";
+import prisma from "../config/database";
+import { config } from "../config/env";
+import { securityHeaders } from "../middleware/security";
+import aiRoutes from "../routes/admin/ai";
+import { getBudgetUsd, setBudgetUsd } from "../services/ai.service";
+
+/**
+ * Pinning test for audit finding L8a: the company-wide AI monthly budget must
+ * NOT be mutable by an ordinary ai.use holder (budget_usd=0 is a company-wide
+ * AI DoS; a huge value removes the cost cap). It is a company setting —
+ * settings.company / settings.system / admin only.
+ */
+
+const N = "ai_budget_perm_";
+const stamp = Date.now().toString(36);
+
+let app: ReturnType<typeof Fastify>;
+let adminToken: string;
+let aiUserToken: string;
+let aiRoleId: number;
+let savedBudget: number;
+
+function token(user: { id: number; username: string; roleName: string }) {
+  return jwt.sign(
+    { sub: user.id, username: user.username, role: user.roleName },
+    config.jwt.secret,
+    { expiresIn: "15m" },
+  );
+}
+
+async function cleanup() {
+  await prisma.users.deleteMany({ where: { username: { startsWith: N } } });
+  const roles = await prisma.roles.findMany({
+    where: { name: { startsWith: N } },
+    select: { id: true },
+  });
+  const roleIds = roles.map((r) => r.id);
+  if (roleIds.length > 0) {
+    await prisma.role_permissions.deleteMany({
+      where: { role_id: { in: roleIds } },
+    });
+    await prisma.roles.deleteMany({ where: { id: { in: roleIds } } });
+  }
+}
+
+beforeAll(async () => {
+  await cleanup();
+  savedBudget = await getBudgetUsd();
+
+  app = Fastify({ logger: false });
+  await app.register(cookie);
+  await app.register(rateLimit, { max: 1000, timeWindow: "1 minute" });
+  app.addHook("onRequest", securityHeaders);
+  await app.register(aiRoutes, { prefix: "/api/admin/ai" });
+
+  const admin = await prisma.users.findFirst({
+    where: { roles: { name: "admin" } },
+  });
+  if (!admin) throw new Error("Test setup: admin user not found");
+  adminToken = token({
+    id: admin.id,
+    username: admin.username,
+    roleName: "admin",
+  });
+
+  // Ordinary ai.use holder — may chat, must NOT control the budget.
+  const role = await prisma.roles.create({
+    data: { name: `${N}aiuse_${stamp}`, display_name: "AI Use Only" },
+  });
+  aiRoleId = role.id;
+  const perm = await prisma.permissions.findFirst({
+    where: { name: "ai.use" },
+  });
+  if (!perm) throw new Error("Test setup: ai.use permission missing");
+  await prisma.role_permissions.create({
+    data: { role_id: aiRoleId, permission_id: perm.id },
+  });
+  const user = await prisma.users.create({
+    data: {
+      username: `${N}user_${stamp}`,
+      email: `${N}${stamp}@test.local`,
+      password_hash:
+        "$2a$10$invalidinvalidinvalidinvalidinvalidinvalidinvalidinvali",
+      first_name: "AiUse",
+      last_name: "Only",
+      is_active: true,
+      role_id: aiRoleId,
+    },
+  });
+  aiUserToken = token({
+    id: user.id,
+    username: user.username,
+    roleName: role.name,
+  });
+});
+
+afterAll(async () => {
+  await setBudgetUsd(savedBudget); // restore whatever the test DB had
+  if (app) await app.close();
+  await cleanup();
+  await prisma.$disconnect();
+});
+
+describe("PUT /ai/budget permission gate (audit L8a)", () => {
+  it("rejects an ordinary ai.use holder with 403", async () => {
+    const res = await app.inject({
+      method: "PUT",
+      url: "/api/admin/ai/budget",
+      headers: {
+        Authorization: `Bearer ${aiUserToken}`,
+        "Content-Type": "application/json",
+      },
+      payload: { budget_usd: 0 },
+    });
+    expect(res.statusCode).toBe(403);
+    // ...and the budget must be untouched.
+    expect(await getBudgetUsd()).toBe(savedBudget);
+  });
+
+  it("allows an admin to set the budget", async () => {
+    const res = await app.inject({
+      method: "PUT",
+      url: "/api/admin/ai/budget",
+      headers: {
+        Authorization: `Bearer ${adminToken}`,
+        "Content-Type": "application/json",
+      },
+      payload: { budget_usd: savedBudget },
+    });
+    expect(res.statusCode).toBe(200);
+  });
+});

src/__tests__/ai.test.ts

@@ -0,0 +1,468 @@
+import { describe, it, expect, beforeEach, beforeAll, afterAll } from "vitest";
+import Fastify from "fastify";
+import cookie from "@fastify/cookie";
+import rateLimit from "@fastify/rate-limit";
+import jwt from "jsonwebtoken";
+import prisma from "../config/database";
+import { config as appConfig } from "../config/env";
+import { securityHeaders } from "../middleware/security";
+import aiRoutes from "../routes/admin/ai";
+import {
+  computeCostUsd,
+  recordUsage,
+  getMonthSpendUsd,
+  getBudgetUsd,
+  assertBudgetAvailable,
+  isConfigured,
+  listConversations,
+  createConversation,
+  getConversationMessages,
+  appendConversationMessages,
+  renameConversation,
+  deleteConversation,
+} from "../services/ai.service";
+
+const KIND = "test_ai"; // marker so we only clean our own rows
+const CONV_UID_A = 999999991; // synthetic, FK-free owner ids
+const CONV_UID_B = 999999992;
+const HIST_MARKER = "「test-conv」"; // marks HTTP-test conversations on real users
+
+beforeEach(async () => {
+  await prisma.ai_usage.deleteMany({ where: { kind: KIND } });
+});
+afterAll(async () => {
+  await prisma.ai_usage.deleteMany({ where: { kind: KIND } });
+  await prisma.ai_conversations.deleteMany({
+    where: { user_id: { in: [CONV_UID_A, CONV_UID_B] } },
+  });
+  await prisma.ai_conversations.deleteMany({
+    where: { title: { contains: HIST_MARKER } },
+  });
+});
+
+describe("ai.service cost + budget", () => {
+  it("computes Sonnet 4.6 cost from tokens", () => {
+    // 1,000,000 input @ $3 + 1,000,000 output @ $15 = $18
+    expect(
+      computeCostUsd("claude-sonnet-4-6", 1_000_000, 1_000_000),
+    ).toBeCloseTo(18, 6);
+    expect(computeCostUsd("claude-sonnet-4-6", 4000, 500)).toBeCloseTo(
+      0.0195,
+      6,
+    );
+  });
+
+  it("records usage with the computed cost", async () => {
+    await recordUsage({
+      userId: null,
+      kind: KIND,
+      model: "claude-sonnet-4-6",
+      inputTokens: 4000,
+      outputTokens: 500,
+    });
+    const rows = await prisma.ai_usage.findMany({ where: { kind: KIND } });
+    expect(rows.length).toBe(1);
+    expect(Number(rows[0].cost_usd)).toBeCloseTo(0.0195, 6);
+  });
+
+  it("sums only the current month's spend (excludes prior months)", async () => {
+    // Measure the baseline so the assertion is robust to any OTHER current-month
+    // rows that may already exist in the test DB (getMonthSpendUsd sums ALL
+    // kinds, not just ours). We assert the DELTA we introduce, not an absolute
+    // upper bound.
+    const before = await getMonthSpendUsd();
+
+    await recordUsage({
+      userId: null,
+      kind: KIND,
+      model: "claude-sonnet-4-6",
+      inputTokens: 1_000_000,
+      outputTokens: 0,
+    }); // +$3 this month
+    // An old row (year 2000) must NOT count toward the current month.
+    await prisma.ai_usage.create({
+      data: {
+        kind: KIND,
+        model: "claude-sonnet-4-6",
+        input_tokens: 1_000_000,
+        output_tokens: 0,
+        cost_usd: 3,
+        created_at: new Date("2000-01-01T00:00:00Z"),
+      },
+    });
+
+    const after = await getMonthSpendUsd();
+    // Only the $3 current-month row moved the needle; the year-2000 $3 is
+    // excluded. The delta is exactly $3 (not $6).
+    expect(after - before).toBeCloseTo(3, 6);
+  });
+
+  it("assertBudgetAvailable blocks at/over budget, allows under", async () => {
+    const budget = await getBudgetUsd();
+    // Under budget → null (allowed)
+    expect(await assertBudgetAvailable()).toBeNull();
+    // Push spend over budget for this month, then it must block with 402.
+    // Tag with a unique marker so we can delete EXACTLY this row at the end of
+    // the test — that keeps the inflated spend from leaking into any other
+    // current-month test regardless of execution order (the beforeEach kind=KIND
+    // cleanup would catch it too, but cleaning in-test makes it order-proof).
+    const overBudget = await prisma.ai_usage.create({
+      data: {
+        kind: KIND,
+        model: "claude-sonnet-4-6",
+        input_tokens: 0,
+        output_tokens: 0,
+        cost_usd: budget + 1,
+        created_at: new Date(),
+      },
+    });
+    try {
+      const blocked = await assertBudgetAvailable();
+      expect(blocked).not.toBeNull();
+      expect(blocked?.status).toBe(402);
+    } finally {
+      // Remove the over-budget row immediately so it cannot inflate
+      // getMonthSpendUsd for any subsequently-running test.
+      await prisma.ai_usage
+        .delete({ where: { id: overBudget.id } })
+        .catch(() => {});
+    }
+  });
+
+  it("isConfigured reflects the API key presence", () => {
+    expect(typeof isConfigured()).toBe("boolean");
+  });
+});
+
+describe("ai.service conversations", () => {
+  beforeEach(async () => {
+    await prisma.ai_conversations.deleteMany({
+      where: { user_id: { in: [CONV_UID_A, CONV_UID_B] } },
+    });
+  });
+
+  // Narrow a service result to its error branch with a clear failure message.
+  const expectError = (
+    r: { error: string; status: number } | { data: unknown },
+    status: number,
+  ) => {
+    if (!("error" in r))
+      throw new Error(`expected an error result, got ${JSON.stringify(r)}`);
+    expect(r.status).toBe(status);
+  };
+
+  it("creates, lists, appends (auto-title), and reads oldest→newest", async () => {
+    const conv = await createConversation(CONV_UID_A);
+    expect(conv.title).toBe("Nová konverzace");
+    await appendConversationMessages(CONV_UID_A, conv.id, [
+      { role: "user", content: "Kolik je hodin v Praze?" },
+      { role: "assistant", content: "Nevím, ale…" },
+    ]);
+    const list = await listConversations(CONV_UID_A);
+    expect(list).toHaveLength(1);
+    expect(list[0].title).toBe("Kolik je hodin v Praze?"); // auto-titled
+    const msgs = await getConversationMessages(CONV_UID_A, conv.id);
+    if (!("data" in msgs)) throw new Error("expected messages, got an error");
+    expect(msgs.data.map((m) => m.content)).toEqual([
+      "Kolik je hodin v Praze?",
+      "Nevím, ale…",
+    ]);
+  });
+
+  it("does not overwrite a renamed title on later appends", async () => {
+    const conv = await createConversation(CONV_UID_A);
+    await renameConversation(CONV_UID_A, conv.id, "Moje téma");
+    await appendConversationMessages(CONV_UID_A, conv.id, [
+      { role: "user", content: "tohle by nemělo přepsat název" },
+    ]);
+    const list = await listConversations(CONV_UID_A);
+    expect(list[0].title).toBe("Moje téma");
+  });
+
+  it("bumps updated_at on append", async () => {
+    const conv = await createConversation(CONV_UID_A);
+    // Force an old timestamp, then prove append refreshes it (TIMESTAMP(0) is
+    // second-precision, so compare against a year rather than ms deltas).
+    await prisma.ai_conversations.update({
+      where: { id: conv.id },
+      data: { updated_at: new Date("2000-01-01T00:00:00Z") },
+    });
+    await appendConversationMessages(CONV_UID_A, conv.id, [
+      { role: "user", content: "ping" },
+    ]);
+    const after = (await listConversations(CONV_UID_A))[0].updated_at;
+    expect(after.getFullYear()).toBeGreaterThan(2000);
+  });
+
+  it("isolates conversations per user (404 on every op across owners)", async () => {
+    const a = await createConversation(CONV_UID_A);
+    expect(await listConversations(CONV_UID_B)).toHaveLength(0);
+    expectError(await getConversationMessages(CONV_UID_B, a.id), 404);
+    expectError(
+      await appendConversationMessages(CONV_UID_B, a.id, [
+        { role: "user", content: "x" },
+      ]),
+      404,
+    );
+    expectError(await renameConversation(CONV_UID_B, a.id, "hack"), 404);
+    expectError(await deleteConversation(CONV_UID_B, a.id), 404);
+  });
+
+  it("cascade-deletes messages with the conversation", async () => {
+    const conv = await createConversation(CONV_UID_A);
+    await appendConversationMessages(CONV_UID_A, conv.id, [
+      { role: "user", content: "x" },
+    ]);
+    await deleteConversation(CONV_UID_A, conv.id);
+    const remaining = await prisma.ai_chat_messages.count({
+      where: { conversation_id: conv.id },
+    });
+    expect(remaining).toBe(0);
+  });
+});
+
+describe("HTTP /api/admin/ai", () => {
+  let app: Awaited<ReturnType<typeof buildAiApp>>;
+  let adminToken: string;
+  let noPermToken: string;
+  let noPermRoleId: number;
+  let noPermUserId: number;
+  let savedKey: string;
+
+  async function buildAiApp() {
+    const a = Fastify({ logger: false });
+    await a.register(cookie);
+    await a.register(rateLimit, { max: 1000, timeWindow: "1 minute" });
+    a.addHook("onRequest", securityHeaders);
+    await a.register(aiRoutes, { prefix: "/api/admin/ai" });
+    return a;
+  }
+  function token(user: {
+    id: number;
+    username: string;
+    roleName: string | null;
+  }) {
+    return jwt.sign(
+      { sub: user.id, username: user.username, role: user.roleName },
+      appConfig.jwt.secret,
+      { expiresIn: "15m" },
+    );
+  }
+
+  beforeAll(async () => {
+    savedKey = appConfig.anthropic.apiKey;
+    app = await buildAiApp();
+    const admin = await prisma.users.findFirst({
+      where: { roles: { name: "admin" } },
+      include: { roles: true },
+    });
+    if (!admin) throw new Error("admin not found");
+    adminToken = token({
+      id: admin.id,
+      username: admin.username,
+      roleName: admin.roles?.name ?? null,
+    });
+    const stamp = Date.now();
+    const role = await prisma.roles.create({
+      data: { name: `noperm_ai_${stamp}`, display_name: "No Perm AI" },
+    });
+    noPermRoleId = role.id;
+    const u = await prisma.users.create({
+      data: {
+        username: `noperm_ai_${stamp}`,
+        first_name: "No",
+        last_name: "Perm",
+        email: `noperm_ai_${stamp}@test.local`,
+        password_hash:
+          "$2a$10$invalidinvalidinvalidinvalidinvalidinvalidinvalidinvali",
+        role_id: role.id,
+        is_active: true,
+      },
+    });
+    noPermUserId = u.id;
+    noPermToken = token({
+      id: u.id,
+      username: u.username,
+      roleName: role.name,
+    });
+  });
+  afterAll(async () => {
+    if (app) await app.close();
+    (appConfig.anthropic as { apiKey: string }).apiKey = savedKey;
+    if (noPermUserId)
+      await prisma.users
+        .deleteMany({ where: { id: noPermUserId } })
+        .catch(() => {});
+    if (noPermRoleId)
+      await prisma.roles
+        .deleteMany({ where: { id: noPermRoleId } })
+        .catch(() => {});
+  });
+
+  it("GET /usage requires ai.use", async () => {
+    const res = await app.inject({
+      method: "GET",
+      url: "/api/admin/ai/usage",
+      headers: { Authorization: `Bearer ${noPermToken}` },
+    });
+    expect(res.statusCode).toBe(403);
+  });
+
+  it("GET /usage returns spend + budget for an admin", async () => {
+    const res = await app.inject({
+      method: "GET",
+      url: "/api/admin/ai/usage",
+      headers: { Authorization: `Bearer ${adminToken}` },
+    });
+    expect(res.statusCode).toBe(200);
+    const body = res.json();
+    expect(typeof body.data.budget_usd).toBe("number");
+    expect(typeof body.data.month_spend_usd).toBe("number");
+  });
+
+  it("POST /chat returns 503 when AI is not configured", async () => {
+    (appConfig.anthropic as { apiKey: string }).apiKey = "";
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/admin/ai/chat",
+      headers: {
+        Authorization: `Bearer ${adminToken}`,
+        "Content-Type": "application/json",
+      },
+      payload: { messages: [{ role: "user", content: "ahoj" }] },
+    });
+    expect(res.statusCode).toBe(503);
+    (appConfig.anthropic as { apiKey: string }).apiKey = savedKey;
+  });
+
+  it("GET /conversations requires ai.use", async () => {
+    const res = await app.inject({
+      method: "GET",
+      url: "/api/admin/ai/conversations",
+      headers: { Authorization: `Bearer ${noPermToken}` },
+    });
+    expect(res.statusCode).toBe(403);
+  });
+
+  it("conversation lifecycle over HTTP (create → append → list → rename → delete)", async () => {
+    const created = await app.inject({
+      method: "POST",
+      url: "/api/admin/ai/conversations",
+      headers: {
+        Authorization: `Bearer ${adminToken}`,
+        "Content-Type": "application/json",
+      },
+      payload: { title: `${HIST_MARKER} t` },
+    });
+    expect(created.statusCode).toBe(200);
+    const id = created.json().data.conversation.id as number;
+
+    const appended = await app.inject({
+      method: "POST",
+      url: `/api/admin/ai/conversations/${id}/messages`,
+      headers: {
+        Authorization: `Bearer ${adminToken}`,
+        "Content-Type": "application/json",
+      },
+      payload: { messages: [{ role: "user", content: "ahoj" }] },
+    });
+    expect(appended.statusCode).toBe(200);
+
+    const msgs = await app.inject({
+      method: "GET",
+      url: `/api/admin/ai/conversations/${id}/messages`,
+      headers: { Authorization: `Bearer ${adminToken}` },
+    });
+    expect(
+      msgs.json().data.messages.map((m: { content: string }) => m.content),
+    ).toContain("ahoj");
+
+    const renamed = await app.inject({
+      method: "PATCH",
+      url: `/api/admin/ai/conversations/${id}`,
+      headers: {
+        Authorization: `Bearer ${adminToken}`,
+        "Content-Type": "application/json",
+      },
+      payload: { title: `${HIST_MARKER} renamed` },
+    });
+    expect(renamed.json().data.conversation.title).toBe(
+      `${HIST_MARKER} renamed`,
+    );
+
+    const del = await app.inject({
+      method: "DELETE",
+      url: `/api/admin/ai/conversations/${id}`,
+      headers: { Authorization: `Bearer ${adminToken}` },
+    });
+    expect(del.statusCode).toBe(200);
+  });
+
+  it("GET messages of a non-existent conversation → 404", async () => {
+    const res = await app.inject({
+      method: "GET",
+      url: "/api/admin/ai/conversations/999999000/messages",
+      headers: { Authorization: `Bearer ${adminToken}` },
+    });
+    expect(res.statusCode).toBe(404);
+  });
+
+  it("POST /conversations requires ai.use", async () => {
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/admin/ai/conversations",
+      headers: {
+        Authorization: `Bearer ${noPermToken}`,
+        "Content-Type": "application/json",
+      },
+      payload: { title: "x" },
+    });
+    expect(res.statusCode).toBe(403);
+  });
+
+  it("GET /conversations lists the user's conversations", async () => {
+    const created = await app.inject({
+      method: "POST",
+      url: "/api/admin/ai/conversations",
+      headers: {
+        Authorization: `Bearer ${adminToken}`,
+        "Content-Type": "application/json",
+      },
+      payload: { title: `${HIST_MARKER} listed` },
+    });
+    const id = created.json().data.conversation.id as number;
+    const list = await app.inject({
+      method: "GET",
+      url: "/api/admin/ai/conversations",
+      headers: { Authorization: `Bearer ${adminToken}` },
+    });
+    expect(list.statusCode).toBe(200);
+    expect(
+      list.json().data.conversations.map((c: { id: number }) => c.id),
+    ).toContain(id);
+  });
+
+  it("rejects an empty title (PATCH) and empty messages (POST) with 400", async () => {
+    const patch = await app.inject({
+      method: "PATCH",
+      url: "/api/admin/ai/conversations/999999000",
+      headers: {
+        Authorization: `Bearer ${adminToken}`,
+        "Content-Type": "application/json",
+      },
+      payload: { title: "" },
+    });
+    expect(patch.statusCode).toBe(400);
+
+    const append = await app.inject({
+      method: "POST",
+      url: "/api/admin/ai/conversations/999999000/messages",
+      headers: {
+        Authorization: `Bearer ${adminToken}`,
+        "Content-Type": "application/json",
+      },
+      payload: { messages: [] },
+    });
+    expect(append.statusCode).toBe(400);
+  });
+});

src/__tests__/ares.test.ts

@@ -0,0 +1,116 @@
+import { describe, it, expect, vi, afterEach } from "vitest";
+import { aresLookupByIco, aresSearchByName } from "../services/ares.service";
+
+// ARES is a true external — mock global fetch (the only allowed mock class).
+const SUBJECT = {
+  ico: "22599851",
+  obchodniJmeno: "BOHA Automation s.r.o.",
+  dic: "CZ22599851",
+  sidlo: {
+    nazevStatu: "Česká republika",
+    nazevObce: "Turnov",
+    nazevCastiObce: "Turnov",
+    nazevUlice: "Nádražní",
+    cisloDomovni: 485,
+    psc: 51101,
+    textovaAdresa: "Nádražní 485, 51101 Turnov",
+  },
+};
+
+function mockFetchOnce(status: number, body?: unknown) {
+  return vi.spyOn(globalThis, "fetch").mockResolvedValueOnce({
+    ok: status >= 200 && status < 300,
+    status,
+    json: async () => body,
+  } as Response);
+}
+
+afterEach(() => {
+  vi.restoreAllMocks();
+});
+
+describe("aresLookupByIco", () => {
+  it("maps a subject to the normalized prefill shape", async () => {
+    mockFetchOnce(200, SUBJECT);
+    const res = await aresLookupByIco("22599851");
+    expect(res).toEqual({
+      ico: "22599851",
+      dic: "CZ22599851",
+      name: "BOHA Automation s.r.o.",
+      street: "Nádražní 485",
+      city: "Turnov",
+      postal_code: "511 01",
+      country: "Česká republika",
+    });
+  });
+
+  it("builds Prague-style orientation numbers as 'Ulice 485/12a'", async () => {
+    mockFetchOnce(200, {
+      ...SUBJECT,
+      sidlo: {
+        ...SUBJECT.sidlo,
+        cisloOrientacni: 12,
+        cisloOrientacniPismeno: "a",
+      },
+    });
+    const res = await aresLookupByIco("22599851");
+    expect("street" in res && res.street).toBe("Nádražní 485/12a");
+  });
+
+  it("rejects a non-8-digit IČO without calling ARES", async () => {
+    const spy = vi.spyOn(globalThis, "fetch");
+    expect(await aresLookupByIco("123")).toEqual({ error: "invalid_ico" });
+    expect(await aresLookupByIco("abcdefgh")).toEqual({
+      error: "invalid_ico",
+    });
+    expect(spy).not.toHaveBeenCalled();
+  });
+
+  it("accepts an IČO with stray whitespace", async () => {
+    const spy = mockFetchOnce(200, SUBJECT);
+    const res = await aresLookupByIco(" 225 99851 ");
+    expect("ico" in res && res.ico).toBe("22599851");
+    expect(String(spy.mock.calls[0][0])).toContain("/22599851");
+  });
+
+  it("maps 404 to not_found and network failure to ares_unavailable", async () => {
+    mockFetchOnce(404);
+    expect(await aresLookupByIco("12345678")).toEqual({ error: "not_found" });
+
+    vi.spyOn(globalThis, "fetch").mockRejectedValueOnce(new Error("ETIMEDOUT"));
+    expect(await aresLookupByIco("12345678")).toEqual({
+      error: "ares_unavailable",
+    });
+  });
+});
+
+describe("aresSearchByName", () => {
+  it("maps the result list and sends the name in the POST body", async () => {
+    const spy = mockFetchOnce(200, { ekonomickeSubjekty: [SUBJECT] });
+    const res = await aresSearchByName("BOHA Automation");
+    expect(Array.isArray(res)).toBe(true);
+    if (Array.isArray(res)) {
+      expect(res).toHaveLength(1);
+      expect(res[0].name).toBe("BOHA Automation s.r.o.");
+      expect(res[0].postal_code).toBe("511 01");
+    }
+    const init = spy.mock.calls[0][1] as RequestInit;
+    expect(JSON.parse(String(init.body))).toMatchObject({
+      obchodniJmeno: "BOHA Automation",
+      pocet: 10,
+    });
+  });
+
+  it("returns [] for a blank query without calling ARES", async () => {
+    const spy = vi.spyOn(globalThis, "fetch");
+    expect(await aresSearchByName("   ")).toEqual([]);
+    expect(spy).not.toHaveBeenCalled();
+  });
+
+  it("maps upstream failure to ares_unavailable", async () => {
+    mockFetchOnce(503);
+    expect(await aresSearchByName("BOHA")).toEqual({
+      error: "ares_unavailable",
+    });
+  });
+});

src/__tests__/attendance-delete-balance.test.ts

@@ -0,0 +1,139 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import prisma from "../config/database";
+import { createLeave, deleteAttendance } from "../services/attendance.service";
+import { localDateStr } from "../utils/date";
+
+/**
+ * Pinning tests for audit finding C1: deleting a vacation/sick attendance
+ * record must restore the hours it charged to leave_balances. Without the
+ * restore, cancelling booked leave by deleting its rows permanently inflates
+ * vacation_used/sick_used.
+ */
+
+const N = "att_delbal_";
+
+let userId: number;
+
+/** First Monday of March in the given year — always before the earliest
+ * possible Easter holiday and clear of all fixed Czech holidays, so a
+ * Mon-Fri range books exactly 5 days. (Far-future year per fixture hygiene.) */
+function firstMondayOfMarch(year: number): Date {
+  const d = new Date(year, 2, 1, 12, 0, 0);
+  while (d.getDay() !== 1) d.setDate(d.getDate() + 1);
+  return d;
+}
+
+async function cleanup() {
+  const users = await prisma.users.findMany({
+    where: { username: { startsWith: N } },
+    select: { id: true },
+  });
+  const ids = users.map((u) => u.id);
+  if (ids.length > 0) {
+    await prisma.attendance.deleteMany({ where: { user_id: { in: ids } } });
+    await prisma.leave_balances.deleteMany({ where: { user_id: { in: ids } } });
+    await prisma.users.deleteMany({ where: { id: { in: ids } } });
+  }
+}
+
+beforeAll(async () => {
+  await cleanup();
+  const adminRole = await prisma.roles.findFirst({ where: { name: "admin" } });
+  if (!adminRole)
+    throw new Error("Admin role not found — seed the database first");
+  const user = await prisma.users.create({
+    data: {
+      username: `${N}user`,
+      email: `${N}user@test.local`,
+      password_hash:
+        "$2a$12$LJ3m4ys3Lg4oLBFnYP2amuPBzJnJBbGzCl5Y6X9Y8r0q5.s3L6OyO",
+      first_name: "Delete",
+      last_name: "Balance",
+      is_active: true,
+      role_id: adminRole.id,
+    },
+  });
+  userId = user.id;
+});
+
+afterAll(async () => {
+  await cleanup();
+  await prisma.$disconnect();
+});
+
+async function balance(year: number) {
+  return prisma.leave_balances.findFirst({ where: { user_id: userId, year } });
+}
+
+describe("deleteAttendance leave-balance restore (audit C1)", () => {
+  it("restores vacation_used when booked vacation rows are deleted", async () => {
+    const monday = firstMondayOfMarch(2098);
+    const friday = new Date(monday);
+    friday.setDate(friday.getDate() + 4);
+
+    const created = await createLeave(
+      {
+        user_id: userId,
+        date_from: localDateStr(monday),
+        date_to: localDateStr(friday),
+        leave_type: "vacation",
+        leave_hours: 8,
+      },
+      userId,
+    );
+    expect("created" in created && created.created).toBe(5);
+    expect(Number((await balance(2098))?.vacation_used)).toBe(40);
+
+    const rows = await prisma.attendance.findMany({
+      where: { user_id: userId, leave_type: "vacation" },
+    });
+    expect(rows).toHaveLength(5);
+    for (const row of rows) {
+      const res = await deleteAttendance(row.id);
+      expect("success" in res && res.success).toBe(true);
+    }
+
+    expect(Number((await balance(2098))?.vacation_used)).toBe(0);
+  });
+
+  it("restores sick_used when a booked sick day is deleted", async () => {
+    const monday = firstMondayOfMarch(2099);
+    await createLeave(
+      {
+        user_id: userId,
+        date_from: localDateStr(monday),
+        leave_type: "sick",
+        leave_hours: 8,
+      },
+      userId,
+    );
+    expect(Number((await balance(2099))?.sick_used)).toBe(8);
+
+    const row = await prisma.attendance.findFirst({
+      where: { user_id: userId, leave_type: "sick" },
+    });
+    expect(row).not.toBeNull();
+    await deleteAttendance(row!.id);
+
+    expect(Number((await balance(2099))?.sick_used)).toBe(0);
+  });
+
+  it("does not touch balances when deleting a plain work shift", async () => {
+    const wednesday = firstMondayOfMarch(2098);
+    wednesday.setDate(wednesday.getDate() + 9); // a weekday a week later
+    const shift = await prisma.attendance.create({
+      data: {
+        user_id: userId,
+        shift_date: wednesday,
+        leave_type: "work",
+      },
+    });
+
+    const before = await balance(2098);
+    await deleteAttendance(shift.id);
+    const after = await balance(2098);
+
+    expect(Number(after?.vacation_used)).toBe(Number(before?.vacation_used));
+    expect(Number(after?.sick_used)).toBe(Number(before?.sick_used));
+  });
+});

src/__tests__/attendance.test.ts

@@ -0,0 +1,445 @@
+import { describe, it, expect, beforeAll, afterAll, beforeEach } from "vitest";
+import Fastify from "fastify";
+import cookie from "@fastify/cookie";
+import rateLimit from "@fastify/rate-limit";
+import jwt from "jsonwebtoken";
+import prisma from "../config/database";
+import { config } from "../config/env";
+import { securityHeaders } from "../middleware/security";
+import attendanceRoutes from "../routes/admin/attendance";
+
+// ---------------------------------------------------------------------------
+// Regression tests for the attendance create/edit wire format.
+//
+// The admin create/edit forms send COMBINED local datetimes
+// ("YYYY-MM-DDTHH:MM:00", built by combineDatetime from a date + time input)
+// for arrival_time / departure_time / break_start / break_end, and the
+// service parses them with `new Date(...)`. Commit 519edce validated these
+// fields with `timeString` (bare HH:MM), which rejected every create/edit
+// containing a time, and CreateAttendanceSchema lacked break_start/break_end
+// entirely, so breaks were silently stripped on create. These tests pin the
+// combined-datetime contract at the HTTP route level.
+// ---------------------------------------------------------------------------
+
+// All fixtures live on far-future dates so they can never collide with real
+// rows in the throwaway test DB; cleanup deletes exactly this range.
+const RANGE_START = new Date("2098-01-01T00:00:00");
+const RANGE_END = new Date("2099-01-01T00:00:00");
+
+let app: Awaited<ReturnType<typeof buildApp>>;
+let adminUserId: number;
+let adminToken: string;
+
+async function buildApp() {
+  const a = Fastify({ logger: false });
+  await a.register(cookie);
+  await a.register(rateLimit, { max: 1000, timeWindow: "1 minute" });
+  a.addHook("onRequest", securityHeaders);
+  await a.register(attendanceRoutes, { prefix: "/api/admin/attendance" });
+  return a;
+}
+
+/**
+ * Generate a JWT access token. `requireAuth` re-loads auth data from the DB
+ * via `loadAuthData(payload.sub)`, so only the `sub` (user id) matters here.
+ */
+function generateToken(user: {
+  id: number;
+  username: string;
+  roleName: string | null;
+}): string {
+  return jwt.sign(
+    { sub: user.id, username: user.username, role: user.roleName },
+    config.jwt.secret,
+    { expiresIn: "15m" },
+  );
+}
+
+async function authPost(path: string, token: string, body: unknown) {
+  return app.inject({
+    method: "POST",
+    url: path,
+    headers: {
+      Authorization: `Bearer ${token}`,
+      "Content-Type": "application/json",
+    },
+    payload: body as object,
+  });
+}
+
+async function authPut(path: string, token: string, body: unknown) {
+  return app.inject({
+    method: "PUT",
+    url: path,
+    headers: {
+      Authorization: `Bearer ${token}`,
+      "Content-Type": "application/json",
+    },
+    payload: body as object,
+  });
+}
+
+async function cleanupFixtureRows() {
+  await prisma.attendance.deleteMany({
+    where: {
+      user_id: adminUserId,
+      shift_date: { gte: RANGE_START, lt: RANGE_END },
+    },
+  });
+}
+
+beforeAll(async () => {
+  app = await buildApp();
+
+  const admin = await prisma.users.findFirst({
+    where: { roles: { name: "admin" } },
+    include: { roles: true },
+  });
+  if (!admin) throw new Error("Test setup: admin user not found");
+  adminUserId = admin.id;
+  adminToken = generateToken({
+    id: admin.id,
+    username: admin.username,
+    roleName: admin.roles?.name ?? null,
+  });
+
+  await cleanupFixtureRows();
+});
+
+beforeEach(async () => {
+  await cleanupFixtureRows();
+});
+
+afterAll(async () => {
+  await cleanupFixtureRows();
+  if (app) await app.close();
+});
+
+describe("POST /api/admin/attendance (combined datetimes)", () => {
+  it("creates a work record with arrival+departure datetimes and persists them", async () => {
+    const arrival = "2098-03-10T08:00:00";
+    const departure = "2098-03-10T16:30:00";
+
+    const res = await authPost("/api/admin/attendance", adminToken, {
+      user_id: adminUserId,
+      shift_date: "2098-03-10",
+      leave_type: "work",
+      arrival_time: arrival,
+      departure_time: departure,
+      notes: "attendance_wire_test work",
+    });
+
+    expect(res.statusCode).toBe(201);
+    const body = res.json();
+    expect(body.success).toBe(true);
+
+    const rec = await prisma.attendance.findUnique({
+      where: { id: body.data.id },
+    });
+    expect(rec).toBeTruthy();
+    expect(rec!.leave_type).toBe("work");
+    expect(rec!.arrival_time?.getTime()).toBe(new Date(arrival).getTime());
+    expect(rec!.departure_time?.getTime()).toBe(new Date(departure).getTime());
+  });
+
+  it("persists break_start/break_end on create (previously silently stripped)", async () => {
+    const res = await authPost("/api/admin/attendance", adminToken, {
+      user_id: adminUserId,
+      shift_date: "2098-03-11",
+      leave_type: "work",
+      arrival_time: "2098-03-11T08:00:00",
+      departure_time: "2098-03-11T16:30:00",
+      break_start: "2098-03-11T12:00:00",
+      break_end: "2098-03-11T12:30:00",
+      notes: "attendance_wire_test break",
+    });
+
+    expect(res.statusCode).toBe(201);
+    const body = res.json();
+    expect(body.success).toBe(true);
+
+    const rec = await prisma.attendance.findUnique({
+      where: { id: body.data.id },
+    });
+    expect(rec!.break_start?.getTime()).toBe(
+      new Date("2098-03-11T12:00:00").getTime(),
+    );
+    expect(rec!.break_end?.getTime()).toBe(
+      new Date("2098-03-11T12:30:00").getTime(),
+    );
+  });
+
+  it("creates a leave record with NO time fields", async () => {
+    const res = await authPost("/api/admin/attendance", adminToken, {
+      user_id: adminUserId,
+      shift_date: "2098-03-12",
+      leave_type: "vacation",
+      leave_hours: 8,
+      notes: "attendance_wire_test leave",
+    });
+
+    expect(res.statusCode).toBe(201);
+    const body = res.json();
+    expect(body.success).toBe(true);
+
+    const rec = await prisma.attendance.findUnique({
+      where: { id: body.data.id },
+    });
+    expect(rec!.leave_type).toBe("vacation");
+    expect(Number(rec!.leave_hours)).toBe(8);
+    expect(rec!.arrival_time).toBeNull();
+    expect(rec!.departure_time).toBeNull();
+  });
+
+  it('tolerates "" for unset datetime fields (old form payloads) → null', async () => {
+    // The AttendanceCreate page historically always sent empty strings for
+    // the unfilled time fields — even for leave records — which 400'd EVERY
+    // submit after 519edce. The schema must treat "" as "not set".
+    const res = await authPost("/api/admin/attendance", adminToken, {
+      user_id: adminUserId,
+      shift_date: "2098-03-13",
+      leave_type: "sick",
+      leave_hours: 8,
+      arrival_time: "",
+      departure_time: "",
+      break_start: "",
+      break_end: "",
+      notes: "attendance_wire_test empty strings",
+    });
+
+    expect(res.statusCode).toBe(201);
+    const body = res.json();
+    expect(body.success).toBe(true);
+
+    const rec = await prisma.attendance.findUnique({
+      where: { id: body.data.id },
+    });
+    expect(rec!.leave_type).toBe("sick");
+    expect(rec!.arrival_time).toBeNull();
+    expect(rec!.departure_time).toBeNull();
+    expect(rec!.break_start).toBeNull();
+    expect(rec!.break_end).toBeNull();
+  });
+});
+
+describe("GET /api/admin/attendance (complete month, no truncation)", () => {
+  it("returns every record of a month with more than 100 rows", async () => {
+    // The admin month view computes the KPI cards and summary totals from
+    // this single fetch, so it must cover the COMPLETE month. With the old
+    // 100-row pagination cap, months with >100 records were silently
+    // truncated (newest-first) and the screen totals dropped the earliest
+    // days while the print stayed complete.
+    const rows = [];
+    for (let day = 1; day <= 30; day++) {
+      for (let s = 0; s < 4; s++) {
+        rows.push({
+          user_id: adminUserId,
+          shift_date: new Date(2098, 4, day, 12, 0, 0),
+          leave_type: "work" as const,
+          arrival_time: new Date(2098, 4, day, 6 + s, 0, 0),
+          departure_time: new Date(2098, 4, day, 10 + s, 0, 0),
+          notes: "attendance_wire_test bulk month",
+        });
+      }
+    }
+    await prisma.attendance.createMany({ data: rows });
+
+    const res = await app.inject({
+      method: "GET",
+      url: "/api/admin/attendance?year=2098&month=5&limit=2000",
+      headers: { Authorization: `Bearer ${adminToken}` },
+    });
+
+    expect(res.statusCode).toBe(200);
+    const body = res.json();
+    expect(body.success).toBe(true);
+    expect(body.data).toHaveLength(120);
+    expect(body.pagination.total).toBe(120);
+  });
+});
+
+describe("GET /api/admin/attendance (month window boundaries, @db.Date)", () => {
+  it("includes the month's own LAST day and excludes the neighbor month's first day", async () => {
+    // shift_date is @db.Date — Prisma compares the filter Dates by their UTC
+    // date part. The old LOCAL-midnight month bounds (22:00/23:00 UTC of the
+    // previous day) shifted the whole window a day back: the June list
+    // included May 31 and DROPPED June 30. Fixture rows sit exactly on the
+    // 2098-06 / 2098-07 boundary.
+    const juneLast = await prisma.attendance.create({
+      data: {
+        user_id: adminUserId,
+        shift_date: new Date(2098, 5, 30, 12, 0, 0), // 2098-06-30, local noon
+        leave_type: "work",
+        arrival_time: new Date(2098, 5, 30, 8, 0, 0),
+        departure_time: new Date(2098, 5, 30, 16, 0, 0),
+        notes: "attendance_wire_test june-last-day",
+      },
+    });
+    const julyFirst = await prisma.attendance.create({
+      data: {
+        user_id: adminUserId,
+        shift_date: new Date(2098, 6, 1, 12, 0, 0), // 2098-07-01, local noon
+        leave_type: "work",
+        arrival_time: new Date(2098, 6, 1, 8, 0, 0),
+        departure_time: new Date(2098, 6, 1, 16, 0, 0),
+        notes: "attendance_wire_test july-first-day",
+      },
+    });
+
+    const june = await app.inject({
+      method: "GET",
+      url: "/api/admin/attendance?year=2098&month=6&limit=100",
+      headers: { Authorization: `Bearer ${adminToken}` },
+    });
+    expect(june.statusCode).toBe(200);
+    const juneIds = june.json().data.map((r: { id: number }) => r.id);
+    expect(juneIds).toContain(juneLast.id);
+    expect(juneIds).not.toContain(julyFirst.id);
+
+    const july = await app.inject({
+      method: "GET",
+      url: "/api/admin/attendance?year=2098&month=7&limit=100",
+      headers: { Authorization: `Bearer ${adminToken}` },
+    });
+    expect(july.statusCode).toBe(200);
+    const julyIds = july.json().data.map((r: { id: number }) => r.id);
+    expect(julyIds).toContain(julyFirst.id);
+    expect(julyIds).not.toContain(juneLast.id);
+  });
+});
+
+describe("POST /api/admin/attendance (same-day duplicate window, @db.Date)", () => {
+  it("rejects a second leave record on the SAME day", async () => {
+    const first = await authPost("/api/admin/attendance", adminToken, {
+      user_id: adminUserId,
+      shift_date: "2098-08-10",
+      leave_type: "vacation",
+      leave_hours: 8,
+      notes: "attendance_wire_test dup-leave-first",
+    });
+    expect(first.statusCode).toBe(201);
+
+    // Old bug: the duplicate/overlap window was built from LOCAL midnights of
+    // the UTC-midnight shiftDate, so the validation queried ONLY the previous
+    // day — a same-day duplicate leave sailed through undetected.
+    const second = await authPost("/api/admin/attendance", adminToken, {
+      user_id: adminUserId,
+      shift_date: "2098-08-10",
+      leave_type: "sick",
+      leave_hours: 8,
+      notes: "attendance_wire_test dup-leave-second",
+    });
+    expect(second.statusCode).toBe(400);
+    expect(second.json().success).toBe(false);
+  });
+
+  it("does NOT falsely reject a leave on the day AFTER an existing record", async () => {
+    const first = await authPost("/api/admin/attendance", adminToken, {
+      user_id: adminUserId,
+      shift_date: "2098-08-10",
+      leave_type: "vacation",
+      leave_hours: 8,
+      notes: "attendance_wire_test neighbor-day-first",
+    });
+    expect(first.statusCode).toBe(201);
+
+    // Old bug (the other half): creating a record for the NEXT day queried
+    // the window [Aug 10, Aug 11) — i.e. yesterday's records — and bounced
+    // with a false "záznam o nepřítomnosti již existuje".
+    const nextDay = await authPost("/api/admin/attendance", adminToken, {
+      user_id: adminUserId,
+      shift_date: "2098-08-11",
+      leave_type: "vacation",
+      leave_hours: 8,
+      notes: "attendance_wire_test neighbor-day-next",
+    });
+    expect(nextDay.statusCode).toBe(201);
+    expect(nextDay.json().success).toBe(true);
+  });
+});
+
+describe("PUT /api/admin/attendance/:id (combined datetimes)", () => {
+  it("updates a record with combined datetimes (incl. overnight departure)", async () => {
+    const created = await prisma.attendance.create({
+      data: {
+        user_id: adminUserId,
+        shift_date: new Date(2098, 2, 14, 12, 0, 0),
+        leave_type: "work",
+        arrival_time: new Date("2098-03-14T08:00:00"),
+        departure_time: new Date("2098-03-14T16:30:00"),
+        notes: "attendance_wire_test update",
+      },
+    });
+
+    const res = await authPut(
+      `/api/admin/attendance/${created.id}`,
+      adminToken,
+      {
+        leave_type: "work",
+        arrival_time: "2098-03-14T22:00:00",
+        departure_time: "2098-03-15T06:00:00",
+        break_start: "2098-03-15T02:00:00",
+        break_end: "2098-03-15T02:30:00",
+        notes: "attendance_wire_test updated",
+      },
+    );
+
+    expect(res.statusCode).toBe(200);
+    const body = res.json();
+    expect(body.success).toBe(true);
+
+    const rec = await prisma.attendance.findUnique({
+      where: { id: created.id },
+    });
+    expect(rec!.arrival_time?.getTime()).toBe(
+      new Date("2098-03-14T22:00:00").getTime(),
+    );
+    expect(rec!.departure_time?.getTime()).toBe(
+      new Date("2098-03-15T06:00:00").getTime(),
+    );
+    expect(rec!.break_start?.getTime()).toBe(
+      new Date("2098-03-15T02:00:00").getTime(),
+    );
+    expect(rec!.break_end?.getTime()).toBe(
+      new Date("2098-03-15T02:30:00").getTime(),
+    );
+    expect(rec!.notes).toBe("attendance_wire_test updated");
+  });
+
+  it("clears times when null is sent (leave-type edit)", async () => {
+    const created = await prisma.attendance.create({
+      data: {
+        user_id: adminUserId,
+        shift_date: new Date(2098, 2, 16, 12, 0, 0),
+        leave_type: "work",
+        arrival_time: new Date("2098-03-16T08:00:00"),
+        departure_time: new Date("2098-03-16T16:30:00"),
+        notes: "attendance_wire_test to-leave",
+      },
+    });
+
+    const res = await authPut(
+      `/api/admin/attendance/${created.id}`,
+      adminToken,
+      {
+        leave_type: "vacation",
+        leave_hours: 8,
+        arrival_time: null,
+        departure_time: null,
+        break_start: null,
+        break_end: null,
+        notes: "attendance_wire_test to-leave",
+      },
+    );
+
+    expect(res.statusCode).toBe(200);
+    expect(res.json().success).toBe(true);
+
+    const rec = await prisma.attendance.findUnique({
+      where: { id: created.id },
+    });
+    expect(rec!.leave_type).toBe("vacation");
+    expect(rec!.arrival_time).toBeNull();
+    expect(rec!.departure_time).toBeNull();
+  });
+});

src/__tests__/audit-log-date-filter.test.ts

@@ -0,0 +1,96 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import Fastify from "fastify";
+import jwt from "jsonwebtoken";
+import prisma from "../config/database";
+import { config } from "../config/env";
+import auditLogRoutes from "../routes/admin/audit-log";
+
+/**
+ * Pinning test for audit finding L8b: the audit-log date_from boundary must
+ * be the LOCAL midnight of the requested day, symmetric with the date_to
+ * side (which already parses "T23:59:59" as local). The old
+ * `new Date(date_from)` was UTC midnight = 01:00/02:00 Prague, silently
+ * excluding events logged in the first morning hours of the from-day.
+ *
+ * NOTE: audit_logs.created_at is @db.Timestamp(0) — capped at 2038, so the
+ * far-future fixture year is 2037, not 2098.
+ */
+
+const N = "auditlog_datefilter_";
+const DAY = "2037-04-09";
+
+let app: ReturnType<typeof Fastify>;
+let adminToken: string;
+let earlyId: number; // 00:30 local — inside the old excluded window
+let middayId: number; // 12:00 local
+let prevDayId: number; // 23:30 local the day BEFORE — must stay excluded
+
+async function cleanup() {
+  await prisma.audit_logs.deleteMany({
+    where: { description: { contains: N } },
+  });
+}
+
+beforeAll(async () => {
+  await cleanup();
+
+  app = Fastify({ logger: false });
+  await app.register(auditLogRoutes, { prefix: "/api/admin/audit-log" });
+
+  const admin = await prisma.users.findFirst({
+    where: { roles: { name: "admin" } },
+  });
+  if (!admin) throw new Error("Test setup: admin user not found");
+  adminToken = jwt.sign(
+    { sub: admin.id, username: admin.username, role: "admin" },
+    config.jwt.secret,
+    { expiresIn: "15m" },
+  );
+
+  const early = await prisma.audit_logs.create({
+    data: {
+      action: "test",
+      description: `${N}early`,
+      created_at: new Date(2037, 3, 9, 0, 30, 0),
+    },
+  });
+  earlyId = early.id;
+  const midday = await prisma.audit_logs.create({
+    data: {
+      action: "test",
+      description: `${N}midday`,
+      created_at: new Date(2037, 3, 9, 12, 0, 0),
+    },
+  });
+  middayId = midday.id;
+  const prevDay = await prisma.audit_logs.create({
+    data: {
+      action: "test",
+      description: `${N}prevday`,
+      created_at: new Date(2037, 3, 8, 23, 30, 0),
+    },
+  });
+  prevDayId = prevDay.id;
+});
+
+afterAll(async () => {
+  if (app) await app.close();
+  await cleanup();
+  await prisma.$disconnect();
+});
+
+describe("audit-log date_from boundary (audit L8b)", () => {
+  it("includes events from the first morning hours of the from-day", async () => {
+    const res = await app.inject({
+      method: "GET",
+      url: `/api/admin/audit-log?date_from=${DAY}&date_to=${DAY}&limit=100`,
+      headers: { Authorization: `Bearer ${adminToken}` },
+    });
+    expect(res.statusCode).toBe(200);
+    const ids = (res.json().data as Array<{ id: number }>).map((r) => r.id);
+
+    expect(ids).toContain(earlyId); // 00:30 — dropped by the old UTC from-bound
+    expect(ids).toContain(middayId);
+    expect(ids).not.toContain(prevDayId); // previous evening stays out
+  });
+});

src/__tests__/auth.service.test.ts

@@ -1,10 +1,72 @@
-import { describe, it, expect, vi } from "vitest";
+import { describe, it, expect, vi, beforeAll, afterAll } from "vitest";
 import { verifyAccessToken, hashToken } from "../services/auth";
 import jwt from "jsonwebtoken";
 import { config } from "../config/env";
+import prisma from "../config/database";
+
+// Prefix for fixtures so cleanup never touches real data.
+const N = "auth_svc_test_";
+
+let testUserId: number;
+let testUsername: string;
+let testRoleName: string | null;
+
+beforeAll(async () => {
+  // Clean up any leftover fixtures from a previous failed run.
+  await prisma.users
+    .deleteMany({ where: { username: { startsWith: N } } })
+    .catch(() => {});
+
+  // Use a real (active, unlocked) user from the seeded DB so loadAuthData
+  // returns a full AuthData. We don't need a specific role — any active user
+  // works — but we record its role so we can assert roleName precisely.
+  const role = await prisma.roles.findFirst();
+  if (!role) throw new Error("Test setup: no roles found — seed the database");
+
+  const user = await prisma.users.create({
+    data: {
+      username: `${N}user`,
+      email: `${N}user@test.local`,
+      // DUMMY_HASH used elsewhere in the suite; we never verify a password
+      // here, only that the token's `sub` resolves to this user.
+      password_hash:
+        "$2a$12$LJ3m4ys3Lg4oLBFnYP2amuPBzJnJBbGzCl5Y6X9Y8r0q5.s3L6OyO",
+      first_name: "Auth",
+      last_name: "Service",
+      is_active: true,
+      role_id: role.id,
+    },
+    include: { roles: true },
+  });
+  testUserId = user.id;
+  testUsername = user.username;
+  testRoleName = user.roles?.name ?? null;
+});
+
+afterAll(async () => {
+  await prisma.users
+    .deleteMany({ where: { username: { startsWith: N } } })
+    .catch(() => {});
+});
 
 describe("auth service", () => {
   describe("verifyAccessToken", () => {
+    it("returns AuthData for a valid token signed for a real user", async () => {
+      const token = jwt.sign(
+        { sub: testUserId, username: testUsername, role: testRoleName },
+        config.jwt.secret,
+        { expiresIn: config.jwt.accessTokenExpiry, algorithm: "HS256" },
+      );
+
+      const result = await verifyAccessToken(token);
+      expect(result).not.toBeNull();
+      expect(result!.userId).toBe(testUserId);
+      expect(result!.username).toBe(testUsername);
+      expect(result!.roleName).toBe(testRoleName);
+      // Permissions resolve to an array (admins get all, others get role perms).
+      expect(Array.isArray(result!.permissions)).toBe(true);
+    });
+
     it("returns null WITHOUT logging for an invalid JWT (expected condition)", async () => {
       const consoleSpy = vi
         .spyOn(console, "error")
@@ -35,6 +97,14 @@ describe("auth service", () => {
   });
 
   describe("hashToken", () => {
+    it("matches the known SHA-256 vector for a fixed input", () => {
+      // SHA-256("hello") — pins the algorithm so a silent change (e.g. to a
+      // different but still 64-hex-deterministic hash) is caught.
+      expect(hashToken("hello")).toBe(
+        "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824",
+      );
+    });
+
     it("produces deterministic SHA-256 hex output", () => {
       const t1 = hashToken("hello");
       const t2 = hashToken("hello");

src/__tests__/auth.test.ts

@@ -1,12 +1,73 @@
 import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import bcrypt from "bcryptjs";
 import { buildApp, extractCookie } from "./helpers";
+import prisma from "../config/database";
+import { config } from "../config/env";
 
 let app: Awaited<ReturnType<typeof buildApp>>;
 
+// Fixture prefix so cleanup never touches real data.
+const N = "auth_test_";
+const TEST_USERNAME = `${N}user`;
+const TEST_PASSWORD = "Sup3r-Secret-Pw!";
+
+let testUserId: number;
+
+/** Pull every Set-Cookie header line for a given cookie name (raw, with attrs). */
+function rawSetCookie(res: { headers: Record<string, any> }, name: string) {
+  const cookies = res.headers["set-cookie"];
+  if (!cookies) return undefined;
+  const arr = Array.isArray(cookies) ? cookies : [cookies];
+  return arr.find((c: string) => c.startsWith(`${name}=`));
+}
+
 beforeAll(async () => {
   app = await buildApp();
+
+  // Clean up any leftover fixture from a previous failed run, plus its tokens.
+  const leftovers = await prisma.users.findMany({
+    where: { username: { startsWith: N } },
+    select: { id: true },
+  });
+  if (leftovers.length) {
+    await prisma.refresh_tokens.deleteMany({
+      where: { user_id: { in: leftovers.map((u) => u.id) } },
+    });
+    await prisma.users.deleteMany({ where: { username: { startsWith: N } } });
+  }
+
+  const role = await prisma.roles.findFirst();
+  if (!role) throw new Error("Test setup: no roles found — seed the database");
+
+  // Hash the known password with the SAME bcrypt cost the app uses so login's
+  // bcrypt.compare succeeds.
+  const passwordHash = await bcrypt.hash(
+    TEST_PASSWORD,
+    config.security.bcryptCost,
+  );
+
+  const user = await prisma.users.create({
+    data: {
+      username: TEST_USERNAME,
+      email: `${N}user@test.local`,
+      password_hash: passwordHash,
+      first_name: "Auth",
+      last_name: "Test",
+      is_active: true,
+      totp_enabled: false,
+      role_id: role.id,
+    },
+  });
+  testUserId = user.id;
 });
+
 afterAll(async () => {
+  await prisma.refresh_tokens
+    .deleteMany({ where: { user_id: testUserId } })
+    .catch(() => {});
+  await prisma.users
+    .deleteMany({ where: { username: { startsWith: N } } })
+    .catch(() => {});
   await app.close();
 });
 
@@ -29,6 +90,39 @@ describe("POST /api/admin/login", () => {
     });
     expect(res.statusCode).toBe(400);
   });
+
+  it("returns 401 for a valid user with the wrong password", async () => {
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/admin/login",
+      payload: { username: TEST_USERNAME, password: "definitely-wrong" },
+    });
+    expect(res.statusCode).toBe(401);
+    expect(res.json().success).toBe(false);
+  });
+
+  it("returns 200 with an access token and a refresh cookie on valid credentials", async () => {
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/admin/login",
+      payload: { username: TEST_USERNAME, password: TEST_PASSWORD },
+    });
+    expect(res.statusCode).toBe(200);
+    const body = res.json();
+    expect(body.success).toBe(true);
+    expect(typeof body.data.access_token).toBe("string");
+    expect(body.data.access_token.length).toBeGreaterThan(0);
+    expect(body.data.expires_in).toBe(config.jwt.accessTokenExpiry);
+    expect(body.data.user.userId).toBe(testUserId);
+    expect(body.data.user.username).toBe(TEST_USERNAME);
+
+    // The refresh token must be set as an httpOnly, SameSite=Strict cookie.
+    const cookie = extractCookie(res, "refresh_token");
+    expect(cookie).toBeTruthy();
+    const rawCookie = rawSetCookie(res, "refresh_token")!;
+    expect(rawCookie).toMatch(/HttpOnly/i);
+    expect(rawCookie).toMatch(/SameSite=Strict/i);
+  });
 });
 
 describe("POST /api/admin/refresh", () => {
@@ -39,14 +133,88 @@ describe("POST /api/admin/refresh", () => {
     });
     expect(res.statusCode).toBe(401);
   });
+
+  it("returns 401 for an invalid/unknown refresh token", async () => {
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/admin/refresh",
+      cookies: { refresh_token: "not-a-real-token" },
+    });
+    expect(res.statusCode).toBe(401);
+    expect(res.json().success).toBe(false);
+  });
+
+  it("rotates a valid refresh cookie into a new access token + new refresh cookie", async () => {
+    // First log in to obtain a valid refresh cookie.
+    const loginRes = await app.inject({
+      method: "POST",
+      url: "/api/admin/login",
+      payload: { username: TEST_USERNAME, password: TEST_PASSWORD },
+    });
+    expect(loginRes.statusCode).toBe(200);
+    const originalRefresh = extractCookie(loginRes, "refresh_token")!;
+    expect(originalRefresh).toBeTruthy();
+
+    const refreshRes = await app.inject({
+      method: "POST",
+      url: "/api/admin/refresh",
+      cookies: { refresh_token: originalRefresh },
+    });
+    expect(refreshRes.statusCode).toBe(200);
+    const body = refreshRes.json();
+    expect(body.success).toBe(true);
+    expect(typeof body.data.access_token).toBe("string");
+    expect(body.data.user.userId).toBe(testUserId);
+
+    // The refresh token must be ROTATED: a new cookie value, different from
+    // the one we presented.
+    const rotated = extractCookie(refreshRes, "refresh_token");
+    expect(rotated).toBeTruthy();
+    expect(rotated).not.toBe(originalRefresh);
+
+    // Reuse-detection: presenting the now-consumed original token must fail.
+    const reuseRes = await app.inject({
+      method: "POST",
+      url: "/api/admin/refresh",
+      cookies: { refresh_token: originalRefresh },
+    });
+    expect(reuseRes.statusCode).toBe(401);
+  });
 });
 
 describe("POST /api/admin/logout", () => {
-  it("clears refresh token cookie", async () => {
+  it("clears the refresh token cookie", async () => {
+    // Log in so logout has a real token to delete.
+    const loginRes = await app.inject({
+      method: "POST",
+      url: "/api/admin/login",
+      payload: { username: TEST_USERNAME, password: TEST_PASSWORD },
+    });
+    const refresh = extractCookie(loginRes, "refresh_token")!;
+
     const res = await app.inject({
       method: "POST",
       url: "/api/admin/logout",
+      cookies: { refresh_token: refresh },
     });
-    expect(res.statusCode).toBeLessThan(500);
+    expect(res.statusCode).toBe(200);
+
+    // The response must actively clear the cookie — an expiry in the past
+    // and/or an empty value (clearCookie sets Max-Age=0 / Expires in the past).
+    const raw = rawSetCookie(res, "refresh_token");
+    expect(raw).toBeTruthy();
+    const cleared =
+      /Max-Age=0/i.test(raw!) ||
+      /Expires=Thu, 01 Jan 1970/i.test(raw!) ||
+      /^refresh_token=;/.test(raw!);
+    expect(cleared).toBe(true);
+
+    // The deleted token must no longer be usable for refresh.
+    const reuseRes = await app.inject({
+      method: "POST",
+      url: "/api/admin/refresh",
+      cookies: { refresh_token: refresh },
+    });
+    expect(reuseRes.statusCode).toBe(401);
   });
 });

src/__tests__/bank-accounts.test.ts

@@ -0,0 +1,152 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import Fastify from "fastify";
+import jwt from "jsonwebtoken";
+import bankAccountsRoutes from "../routes/admin/bank-accounts";
+import prisma from "../config/database";
+import { config } from "../config/env";
+
+// Fixture marker so cleanup never touches real data.
+const N = "bank_accounts_test_";
+
+let app: ReturnType<typeof Fastify>;
+let token: string;
+const createdIds: number[] = [];
+
+beforeAll(async () => {
+  app = Fastify({ logger: false });
+  await app.register(bankAccountsRoutes, {
+    prefix: "/api/admin/bank-accounts",
+  });
+
+  await prisma.users
+    .deleteMany({ where: { username: { startsWith: N } } })
+    .catch(() => {});
+
+  // Admin role bypasses the settings.banking permission guard.
+  const adminRole = await prisma.roles.findFirst({ where: { name: "admin" } });
+  if (!adminRole)
+    throw new Error("Test setup: no admin role found — seed the database");
+
+  const user = await prisma.users.create({
+    data: {
+      username: `${N}user`,
+      email: `${N}user@test.local`,
+      password_hash: "x",
+      first_name: "Bank",
+      last_name: "Test",
+      is_active: true,
+      totp_enabled: false,
+      role_id: adminRole.id,
+    },
+  });
+  token = jwt.sign(
+    { sub: user.id, username: user.username, role: "admin" },
+    config.jwt.secret,
+    { expiresIn: config.jwt.accessTokenExpiry },
+  );
+});
+
+afterAll(async () => {
+  if (createdIds.length) {
+    await prisma.bank_accounts
+      .deleteMany({ where: { id: { in: createdIds } } })
+      .catch(() => {});
+  }
+  await prisma.users
+    .deleteMany({ where: { username: { startsWith: N } } })
+    .catch(() => {});
+  await app.close();
+});
+
+const auth = { authorization: () => `Bearer ${token}` };
+
+describe("bank accounts — flat-body create/update persists all fields", () => {
+  it("creates an account from a flat top-level body and persists every field", async () => {
+    const payload = {
+      account_name: `${N}Hlavní účet`,
+      bank_name: "Komerční banka",
+      account_number: "123456789/0100",
+      iban: "CZ6508000000192000145399",
+      bic: "KOMBCZPP",
+      currency: "CZK",
+      is_default: true,
+    };
+
+    const post = await app.inject({
+      method: "POST",
+      url: "/api/admin/bank-accounts/",
+      headers: { authorization: auth.authorization() },
+      payload,
+    });
+    expect(post.statusCode).toBe(201);
+    const id = post.json().data.id as number;
+    expect(typeof id).toBe("number");
+    createdIds.push(id);
+
+    // Read back via the list endpoint and confirm NONE of the fields are blank.
+    const row = await prisma.bank_accounts.findUnique({ where: { id } });
+    expect(row?.account_name).toBe(payload.account_name);
+    expect(row?.bank_name).toBe(payload.bank_name);
+    expect(row?.account_number).toBe(payload.account_number);
+    expect(row?.iban).toBe(payload.iban);
+    expect(row?.bic).toBe(payload.bic);
+    expect(row?.currency).toBe("CZK");
+    expect(row?.is_default).toBe(true);
+  });
+
+  it("updates an account from a flat body that also carries the id", async () => {
+    const created = await prisma.bank_accounts.create({
+      data: { account_name: `${N}orig`, bank_name: "Orig", currency: "CZK" },
+    });
+    createdIds.push(created.id);
+
+    // Mirrors the client payload: spread fields + id (id routes the URL/method,
+    // is declared in the schema, and is ignored by the route which uses :id).
+    const put = await app.inject({
+      method: "PUT",
+      url: `/api/admin/bank-accounts/${created.id}`,
+      headers: { authorization: auth.authorization() },
+      payload: {
+        id: created.id,
+        account_name: `${N}upraveno`,
+        bank_name: "Nová banka",
+        iban: "CZ9999",
+        currency: "EUR",
+        is_default: false,
+      },
+    });
+    expect(put.statusCode).toBe(200);
+
+    const row = await prisma.bank_accounts.findUnique({
+      where: { id: created.id },
+    });
+    expect(row?.account_name).toBe(`${N}upraveno`);
+    expect(row?.bank_name).toBe("Nová banka");
+    expect(row?.iban).toBe("CZ9999");
+    expect(row?.currency).toBe("EUR");
+  });
+
+  it("rejects the old nested {bank:{...}} body shape with 400 (no silent blank save)", async () => {
+    const post = await app.inject({
+      method: "POST",
+      url: "/api/admin/bank-accounts/",
+      headers: { authorization: auth.authorization() },
+      payload: { bank: { account_name: `${N}nested`, bank_name: "X" } },
+    });
+    expect(post.statusCode).toBe(400);
+
+    // And nothing was persisted under that name.
+    const leaked = await prisma.bank_accounts.findFirst({
+      where: { account_name: `${N}nested` },
+    });
+    expect(leaked).toBeNull();
+  });
+
+  it("requires authentication", async () => {
+    const res = await app.inject({
+      method: "GET",
+      url: "/api/admin/bank-accounts/",
+    });
+    expect(res.statusCode).toBe(401);
+  });
+});

src/__tests__/company-settings-numbering.test.ts

@@ -0,0 +1,132 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import Fastify from "fastify";
+import jwt from "jsonwebtoken";
+import companySettingsRoutes from "../routes/admin/company-settings";
+import prisma from "../config/database";
+import { config } from "../config/env";
+
+// Fixture prefix so cleanup never touches real data.
+const N = "settings_numbering_test_";
+
+let app: ReturnType<typeof Fastify>;
+let token: string;
+
+// Snapshot the prior values of the four numbering fields we mutate so we can
+// restore them in afterAll — other tests read company_settings and must not be
+// poisoned by our writes.
+let priorValues: {
+  issued_order_number_pattern: string | null;
+  issued_order_type_code: string | null;
+  project_number_pattern: string | null;
+  project_type_code: string | null;
+} | null = null;
+let settingsId: number | null = null;
+
+beforeAll(async () => {
+  app = Fastify({ logger: false });
+  await app.register(companySettingsRoutes, {
+    prefix: "/api/admin/company-settings",
+  });
+
+  // Clean up any leftover fixture from a previous failed run.
+  await prisma.users
+    .deleteMany({ where: { username: { startsWith: N } } })
+    .catch(() => {});
+
+  // Attach the fixture user to the admin role so the PUT/GET permission guards
+  // (settings.company / settings.system) pass.
+  const adminRole = await prisma.roles.findFirst({ where: { name: "admin" } });
+  if (!adminRole)
+    throw new Error("Test setup: no admin role found — seed the database");
+
+  const user = await prisma.users.create({
+    data: {
+      username: `${N}user`,
+      email: `${N}user@test.local`,
+      password_hash: "x",
+      first_name: "Settings",
+      last_name: "Test",
+      is_active: true,
+      totp_enabled: false,
+      role_id: adminRole.id,
+    },
+  });
+  token = jwt.sign(
+    { sub: user.id, username: user.username, role: "admin" },
+    config.jwt.secret,
+    { expiresIn: config.jwt.accessTokenExpiry },
+  );
+
+  // Snapshot existing settings so we can restore after the suite.
+  const existing = await prisma.company_settings.findFirst({
+    select: {
+      id: true,
+      issued_order_number_pattern: true,
+      issued_order_type_code: true,
+      project_number_pattern: true,
+      project_type_code: true,
+    },
+  });
+  if (existing) {
+    settingsId = existing.id;
+    priorValues = {
+      issued_order_number_pattern: existing.issued_order_number_pattern,
+      issued_order_type_code: existing.issued_order_type_code,
+      project_number_pattern: existing.project_number_pattern,
+      project_type_code: existing.project_type_code,
+    };
+  }
+});
+
+afterAll(async () => {
+  // Restore the four numbering fields to their pre-test values.
+  if (settingsId !== null && priorValues !== null) {
+    await prisma.company_settings
+      .update({ where: { id: settingsId }, data: priorValues })
+      .catch(() => {});
+  }
+  await prisma.users
+    .deleteMany({ where: { username: { startsWith: N } } })
+    .catch(() => {});
+  await app.close();
+});
+
+describe("company-settings numbering — issued orders + projects round-trip", () => {
+  it("persists and returns issued_order_* and project_* numbering fields", async () => {
+    const payload = {
+      issued_order_number_pattern: "{YY}V{NNNN}",
+      issued_order_type_code: "72",
+      project_number_pattern: "{YY}P{NNNN}",
+      project_type_code: "73",
+    };
+
+    const put = await app.inject({
+      method: "PUT",
+      url: "/api/admin/company-settings/",
+      headers: { authorization: `Bearer ${token}` },
+      payload,
+    });
+    expect(put.statusCode).toBe(200);
+    expect(put.json().success).toBe(true);
+
+    const get = await app.inject({
+      method: "GET",
+      url: "/api/admin/company-settings/",
+      headers: { authorization: `Bearer ${token}` },
+    });
+    expect(get.statusCode).toBe(200);
+    const data = get.json().data;
+    expect(data.issued_order_number_pattern).toBe("{YY}V{NNNN}");
+    expect(data.issued_order_type_code).toBe("72");
+    expect(data.project_number_pattern).toBe("{YY}P{NNNN}");
+    expect(data.project_type_code).toBe("73");
+  });
+
+  it("requires authentication", async () => {
+    const res = await app.inject({
+      method: "GET",
+      url: "/api/admin/company-settings/",
+    });
+    expect(res.statusCode).toBe(401);
+  });
+});

src/__tests__/customers.schema.test.ts

@@ -1,5 +1,8 @@
 import { describe, it, expect } from "vitest";
-import { UpdateCustomerSchema } from "../schemas/customers.schema";
+import {
+  CreateCustomerSchema,
+  UpdateCustomerSchema,
+} from "../schemas/customers.schema";
 
 describe("UpdateCustomerSchema", () => {
   it("rejects empty name", () => {
@@ -16,4 +19,87 @@ describe("UpdateCustomerSchema", () => {
     const result = UpdateCustomerSchema.safeParse({ street: "Main St" });
     expect(result.success).toBe(true);
   });
+
+  it("rejects a name longer than 255 chars", () => {
+    const result = UpdateCustomerSchema.safeParse({ name: "x".repeat(256) });
+    expect(result.success).toBe(false);
+  });
+
+  it("accepts nullable address/identity fields set to null", () => {
+    const result = UpdateCustomerSchema.safeParse({
+      street: null,
+      city: null,
+      postal_code: null,
+      country: null,
+      company_id: null,
+      vat_id: null,
+    });
+    expect(result.success).toBe(true);
+  });
+});
+
+describe("CreateCustomerSchema", () => {
+  it("requires a name", () => {
+    const result = CreateCustomerSchema.safeParse({ street: "Main St" });
+    expect(result.success).toBe(false);
+  });
+
+  it("accepts a full valid payload with all optional fields", () => {
+    const result = CreateCustomerSchema.safeParse({
+      name: "Acme Corp",
+      street: "Main St 1",
+      city: "Praha",
+      postal_code: "11000",
+      country: "CZ",
+      company_id: "12345678",
+      vat_id: "CZ12345678",
+      custom_fields: [{ label: "Note", value: "VIP" }],
+      customer_field_order: ["name", "street"],
+    });
+    expect(result.success).toBe(true);
+  });
+
+  it("accepts custom_fields as an array of arbitrary objects", () => {
+    const result = CreateCustomerSchema.safeParse({
+      name: "Acme Corp",
+      custom_fields: [
+        { label: "a", value: 1 },
+        { nested: { deep: true } },
+        "raw string",
+      ],
+    });
+    expect(result.success).toBe(true);
+  });
+
+  it("rejects custom_fields that is not an array", () => {
+    const result = CreateCustomerSchema.safeParse({
+      name: "Acme Corp",
+      custom_fields: { not: "an array" },
+    });
+    expect(result.success).toBe(false);
+  });
+
+  it("rejects custom_fields longer than the 100-item cap", () => {
+    const result = CreateCustomerSchema.safeParse({
+      name: "Acme Corp",
+      custom_fields: Array.from({ length: 101 }, (_, i) => ({ i })),
+    });
+    expect(result.success).toBe(false);
+  });
+
+  it("rejects customer_field_order entries that are not strings", () => {
+    const result = CreateCustomerSchema.safeParse({
+      name: "Acme Corp",
+      customer_field_order: ["name", 5],
+    });
+    expect(result.success).toBe(false);
+  });
+
+  it("rejects an over-length nullable field (vat_id > 255)", () => {
+    const result = CreateCustomerSchema.safeParse({
+      name: "Acme Corp",
+      vat_id: "x".repeat(256),
+    });
+    expect(result.success).toBe(false);
+  });
 });

src/__tests__/dashboard.test.ts

@@ -0,0 +1,100 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import Fastify from "fastify";
+import jwt from "jsonwebtoken";
+import prisma from "../config/database";
+import { config } from "../config/env";
+import dashboardRoutes from "../routes/admin/dashboard";
+
+// ---------------------------------------------------------------------------
+// Regression test for the "Docházka dnes" / "Přítomní dnes" dashboard window.
+//
+// attendance.shift_date is @db.Date and Prisma truncates a filter Date to its
+// UTC date part. The dashboard used local-midnight boundaries
+// (new Date(y, m, d) = 22:00/23:00 UTC of the PREVIOUS day under
+// TZ=Europe/Prague), which truncated to [yesterday, today) — today's punches
+// matched zero rows and everyone showed as absent. The boundaries must be
+// UTC-midnight instants of the LOCAL calendar day.
+//
+// Unlike the other suites this one has to use the REAL current date (the
+// route computes "today" internally), so fixtures are tracked by id and
+// deleted in afterAll.
+// ---------------------------------------------------------------------------
+
+let app: Awaited<ReturnType<typeof buildApp>>;
+let adminUserId: number;
+let adminToken: string;
+const createdIds: number[] = [];
+
+async function buildApp() {
+  const a = Fastify({ logger: false });
+  await a.register(dashboardRoutes, { prefix: "/api/admin/dashboard" });
+  return a;
+}
+
+beforeAll(async () => {
+  app = await buildApp();
+
+  const admin = await prisma.users.findFirst({
+    where: { roles: { name: "admin" } },
+    include: { roles: true },
+  });
+  if (!admin) throw new Error("Test setup: admin user not found");
+  adminUserId = admin.id;
+  adminToken = jwt.sign(
+    { sub: admin.id, username: admin.username, role: "admin" },
+    config.jwt.secret,
+    { expiresIn: "15m" },
+  );
+});
+
+afterAll(async () => {
+  if (createdIds.length) {
+    await prisma.attendance.deleteMany({ where: { id: { in: createdIds } } });
+  }
+  if (app) await app.close();
+});
+
+describe("GET /api/admin/dashboard — today's attendance window", () => {
+  it("counts a punched-in user as present (local-noon @db.Date row)", async () => {
+    const now = new Date();
+    // The attendance regime stores shift_date at LOCAL NOON (so the UTC date
+    // part equals the Prague calendar date) — same as punchAction does.
+    const row = await prisma.attendance.create({
+      data: {
+        user_id: adminUserId,
+        shift_date: new Date(
+          now.getFullYear(),
+          now.getMonth(),
+          now.getDate(),
+          12,
+          0,
+          0,
+        ),
+        leave_type: "work",
+        arrival_time: now,
+        departure_time: null,
+        notes: "dashboard_window_test",
+      },
+    });
+    createdIds.push(row.id);
+
+    const res = await app.inject({
+      method: "GET",
+      url: "/api/admin/dashboard",
+      headers: { Authorization: `Bearer ${adminToken}` },
+    });
+
+    expect(res.statusCode).toBe(200);
+    const body = res.json();
+    expect(body.success).toBe(true);
+
+    const attendance = body.data.attendance;
+    expect(attendance).toBeTruthy();
+    const me = attendance.users.find(
+      (u: { user_id: number }) => u.user_id === adminUserId,
+    );
+    expect(me).toBeTruthy();
+    expect(me.status).toBe("in");
+    expect(attendance.present_today).toBeGreaterThanOrEqual(1);
+  });
+});

src/__tests__/drafts-aggregation.test.ts

@@ -0,0 +1,116 @@
+import { describe, it, expect, afterEach } from "vitest";
+import prisma from "../config/database";
+import { createInvoice, getInvoiceStats } from "../services/invoices.service";
+import { createOffer } from "../services/offers.service";
+
+// These tests prove that DRAFT documents (a status introduced by the DB-drafts
+// feature) are NOT counted in period reporting aggregations. A draft is not a
+// real financial document, so its VAT/amount/created-count must be excluded.
+//
+// They hit the real `app_test` DB (per the suite convention) via the service
+// layer directly. Every row we create is tracked and removed in afterEach so we
+// leave the DB clean, and we reset the touched number sequences so a finalized
+// (issued/active) doc created here doesn't leak a consumed number into other
+// files.
+
+const invoiceIds: number[] = [];
+const offerIds: number[] = [];
+
+afterEach(async () => {
+  for (const id of invoiceIds)
+    await prisma.invoices.deleteMany({ where: { id } });
+  for (const id of offerIds)
+    await prisma.quotations.deleteMany({ where: { id } });
+  invoiceIds.length = 0;
+  offerIds.length = 0;
+  await prisma.number_sequences.deleteMany({
+    where: { type: { in: ["invoice", "offer"] } },
+  });
+});
+
+describe("drafts excluded from invoice monthly stats (VAT)", () => {
+  it("a draft invoice's VAT is NOT in vat_month while an issued one IS", async () => {
+    // Pick a far-future month so no seeded/other-test invoices fall in it and
+    // the totals are deterministic. issue_date drives the stats window.
+    const year = 2099;
+    const month = 7;
+    const issueDate = `${year}-0${month}-15`;
+
+    // Single CZK line, 21% VAT: base 1000, VAT 210. Identical on both docs so
+    // the only difference between "draft excluded" and "issued counted" is the
+    // status filter under test.
+    const item = { quantity: 1, unit_price: 1000, vat_rate: 21 };
+
+    const draft = await createInvoice({
+      status: "draft",
+      currency: "CZK",
+      apply_vat: true,
+      vat_rate: 21,
+      issue_date: issueDate,
+      items: [item],
+    });
+    invoiceIds.push(draft.id);
+    expect(draft.status).toBe("draft");
+    expect(draft.invoice_number).toBeNull();
+
+    // Sanity: with ONLY the draft present, vat_month must be empty (draft excluded).
+    const draftOnly = await getInvoiceStats(month, year);
+    expect(draftOnly.vat_month).toEqual([]);
+    expect(draftOnly.vat_month_czk).toBe(0);
+
+    const issued = await createInvoice({
+      status: "issued",
+      currency: "CZK",
+      apply_vat: true,
+      vat_rate: 21,
+      issue_date: issueDate,
+      items: [item],
+    });
+    invoiceIds.push(issued.id);
+    expect(issued.status).toBe("issued");
+
+    // Now the issued invoice's VAT (210 CZK) must be counted — and ONLY that
+    // one, not the draft's (which would double it to 420 if drafts leaked in).
+    const stats = await getInvoiceStats(month, year);
+    const czk = stats.vat_month.find((v) => v.currency === "CZK");
+    expect(czk?.amount).toBe(210);
+    expect(stats.vat_month_czk).toBe(210);
+  });
+});
+
+describe("drafts excluded from quotations created-this-month count", () => {
+  it("a draft offer is NOT counted; an active one IS", async () => {
+    // Mirror the dashboard route's exact aggregation: count quotations created
+    // in the window, excluding drafts. Use a tight window around `now` (the
+    // route uses the current month) and assert the delta this test introduces.
+    const now = new Date();
+    const monthStart = new Date(now.getFullYear(), now.getMonth(), 1);
+    const monthEnd = new Date(now.getFullYear(), now.getMonth() + 1, 1);
+
+    const countNonDraft = () =>
+      prisma.quotations.count({
+        where: {
+          status: { not: "draft" },
+          created_at: { gte: monthStart, lt: monthEnd },
+        },
+      });
+
+    const before = await countNonDraft();
+
+    const draft = await createOffer({ status: "draft" });
+    if ("error" in draft) throw new Error(`createOffer failed: ${draft.error}`);
+    offerIds.push(draft.id);
+    expect(draft.status).toBe("draft");
+
+    // The draft must not move the non-draft count.
+    expect(await countNonDraft()).toBe(before);
+
+    const active = await createOffer({ status: "active" });
+    if ("error" in active)
+      throw new Error(`createOffer failed: ${active.error}`);
+    offerIds.push(active.id);
+
+    // The active offer is a real document → the count goes up by exactly 1.
+    expect(await countNonDraft()).toBe(before + 1);
+  });
+});

src/__tests__/drafts-deferred-numbering.test.ts

@@ -0,0 +1,588 @@
+import { describe, it, expect, afterEach, beforeAll, afterAll } from "vitest";
+import Fastify from "fastify";
+import jwt from "jsonwebtoken";
+import prisma from "../config/database";
+import { config } from "../config/env";
+import {
+  previewIssuedOrderNumber,
+  previewInvoiceNumber,
+  previewOfferNumber,
+} from "../services/numbering.service";
+import {
+  createIssuedOrder,
+  updateIssuedOrder,
+  deleteIssuedOrder,
+} from "../services/issued-orders.service";
+import {
+  createInvoice,
+  updateInvoice,
+  deleteInvoice,
+} from "../services/invoices.service";
+import {
+  createOffer,
+  updateOffer,
+  deleteOffer,
+  invalidateOffer,
+  getOffer,
+  listOffers,
+} from "../services/offers.service";
+import quotationsRoutes from "../routes/admin/quotations";
+
+// Track every row we create so the suite leaves the (real) app_test DB clean.
+const issuedOrderIds: number[] = [];
+const invoiceIds: number[] = [];
+const offerIds: number[] = [];
+const customerIds: number[] = [];
+const linkedOrderIds: number[] = [];
+
+afterEach(async () => {
+  for (const id of issuedOrderIds)
+    await prisma.issued_orders.deleteMany({ where: { id } });
+  for (const id of invoiceIds)
+    await prisma.invoices.deleteMany({ where: { id } });
+  // Linked orders FIRST — orders.quotation_id is a Restrict FK on quotations.
+  for (const id of linkedOrderIds)
+    await prisma.orders.deleteMany({ where: { id } });
+  for (const id of offerIds)
+    await prisma.quotations.deleteMany({ where: { id } });
+  for (const id of customerIds)
+    await prisma.customers.deleteMany({ where: { id } });
+  issuedOrderIds.length = 0;
+  invoiceIds.length = 0;
+  linkedOrderIds.length = 0;
+  offerIds.length = 0;
+  customerIds.length = 0;
+  // Reset every sequence this suite may have touched so preview values are
+  // stable across tests and we don't leak consumed numbers into other files.
+  await prisma.number_sequences.deleteMany({
+    where: { type: { in: ["issued_order", "invoice", "offer"] } },
+  });
+});
+
+/** createOffer + narrow the token union + track cleanup. */
+async function mkOffer(body: Record<string, unknown> = {}) {
+  const res = await createOffer(body);
+  if ("error" in res) throw new Error(`createOffer failed: ${res.error}`);
+  offerIds.push(res.id);
+  return res;
+}
+
+/* -------------------------------------------------------------------------- */
+/* Issued orders                                                              */
+/* -------------------------------------------------------------------------- */
+
+describe("issued-order drafts — deferred numbering", () => {
+  it("a draft has no number and does NOT consume the sequence", async () => {
+    const before = (await previewIssuedOrderNumber()).number;
+    const draft = await createIssuedOrder({}); // defaults to draft
+    if ("error" in draft)
+      throw new Error(`createIssuedOrder failed: ${draft.error}`);
+    issuedOrderIds.push(draft.id);
+    expect(draft.status).toBe("draft");
+    expect(draft.po_number).toBeNull();
+    // Preview is unchanged → the sequence was not consumed.
+    const after = (await previewIssuedOrderNumber()).number;
+    expect(after).toBe(before);
+  });
+
+  it("finalizing a draft (draft -> sent) assigns the next sequence number", async () => {
+    const expected = (await previewIssuedOrderNumber()).number;
+    const draft = await createIssuedOrder({});
+    if ("error" in draft)
+      throw new Error(`createIssuedOrder failed: ${draft.error}`);
+    issuedOrderIds.push(draft.id);
+
+    const res = await updateIssuedOrder(draft.id, { status: "sent" });
+    expect("error" in res).toBe(false);
+
+    const row = await prisma.issued_orders.findUnique({
+      where: { id: draft.id },
+    });
+    expect(row?.status).toBe("sent");
+    expect(row?.po_number).toBe(expected);
+    expect("po_number" in res && res.po_number).toBe(expected);
+  });
+
+  it("finalizing is idempotent — re-finalizing does not re-number", async () => {
+    const draft = await createIssuedOrder({});
+    if ("error" in draft)
+      throw new Error(`createIssuedOrder failed: ${draft.error}`);
+    issuedOrderIds.push(draft.id);
+
+    await updateIssuedOrder(draft.id, { status: "sent" });
+    const first = (
+      await prisma.issued_orders.findUnique({ where: { id: draft.id } })
+    )?.po_number;
+    const seqAfterFirst = await prisma.number_sequences.findFirst({
+      where: { type: "issued_order" },
+    });
+
+    // draft -> sent is no longer valid (already sent); the number must not change.
+    // Drive a second finalize-style update that keeps status sent.
+    await updateIssuedOrder(draft.id, { status: "sent" });
+    const second = (
+      await prisma.issued_orders.findUnique({ where: { id: draft.id } })
+    )?.po_number;
+    const seqAfterSecond = await prisma.number_sequences.findFirst({
+      where: { type: "issued_order" },
+    });
+
+    expect(second).toBe(first);
+    expect(seqAfterSecond?.last_number).toBe(seqAfterFirst?.last_number);
+  });
+
+  it("two drafts coexist with null numbers (no unique violation)", async () => {
+    const a = await createIssuedOrder({});
+    const b = await createIssuedOrder({});
+    if ("error" in a) throw new Error(`createIssuedOrder failed: ${a.error}`);
+    if ("error" in b) throw new Error(`createIssuedOrder failed: ${b.error}`);
+    issuedOrderIds.push(a.id, b.id);
+    expect(a.po_number).toBeNull();
+    expect(b.po_number).toBeNull();
+  });
+
+  it("deleting a draft releases nothing (no number was consumed)", async () => {
+    const before = (await previewIssuedOrderNumber()).number;
+    const draft = await createIssuedOrder({});
+    if ("error" in draft)
+      throw new Error(`createIssuedOrder failed: ${draft.error}`);
+    await deleteIssuedOrder(draft.id);
+    const after = (await previewIssuedOrderNumber()).number;
+    expect(after).toBe(before);
+  });
+});
+
+/* -------------------------------------------------------------------------- */
+/* Invoices                                                                   */
+/* -------------------------------------------------------------------------- */
+
+describe("invoice drafts — deferred numbering", () => {
+  it("a draft has no number and does NOT consume the sequence", async () => {
+    const before = (await previewInvoiceNumber()).number;
+    const draft = await createInvoice({});
+    invoiceIds.push(draft.id);
+    expect(draft.status).toBe("draft");
+    expect(draft.invoice_number).toBeNull();
+    const after = (await previewInvoiceNumber()).number;
+    expect(after).toBe(before);
+  });
+
+  it("finalizing a draft (draft -> issued) assigns the next sequence number", async () => {
+    const expected = (await previewInvoiceNumber()).number;
+    const draft = await createInvoice({});
+    invoiceIds.push(draft.id);
+
+    const res = await updateInvoice(draft.id, { status: "issued" });
+    expect("error" in res).toBe(false);
+
+    const row = await prisma.invoices.findUnique({ where: { id: draft.id } });
+    expect(row?.status).toBe("issued");
+    expect(row?.invoice_number).toBe(expected);
+    expect("invoice_number" in res && res.invoice_number).toBe(expected);
+  });
+
+  it("finalizing twice does not re-number / double-consume", async () => {
+    const draft = await createInvoice({});
+    invoiceIds.push(draft.id);
+
+    await updateInvoice(draft.id, { status: "issued" });
+    const first = (
+      await prisma.invoices.findUnique({ where: { id: draft.id } })
+    )?.invoice_number;
+    const seqAfterFirst = await prisma.number_sequences.findFirst({
+      where: { type: "invoice" },
+    });
+
+    // issued -> issued is a no-op status-wise; the number must stay put.
+    await updateInvoice(draft.id, { status: "issued" });
+    const second = (
+      await prisma.invoices.findUnique({ where: { id: draft.id } })
+    )?.invoice_number;
+    const seqAfterSecond = await prisma.number_sequences.findFirst({
+      where: { type: "invoice" },
+    });
+
+    expect(second).toBe(first);
+    expect(seqAfterSecond?.last_number).toBe(seqAfterFirst?.last_number);
+  });
+
+  it("two invoice drafts coexist with null numbers", async () => {
+    const a = await createInvoice({});
+    const b = await createInvoice({});
+    invoiceIds.push(a.id, b.id);
+    expect(a.invoice_number).toBeNull();
+    expect(b.invoice_number).toBeNull();
+  });
+
+  it("deleting a draft releases nothing", async () => {
+    const before = (await previewInvoiceNumber()).number;
+    const draft = await createInvoice({});
+    await deleteInvoice(draft.id);
+    const after = (await previewInvoiceNumber()).number;
+    expect(after).toBe(before);
+  });
+});
+
+/* -------------------------------------------------------------------------- */
+/* Offers                                                                     */
+/* -------------------------------------------------------------------------- */
+
+describe("offer drafts — deferred numbering", () => {
+  it("a draft has no number and does NOT consume the sequence", async () => {
+    const before = await previewOfferNumber();
+    const draft = await createOffer({});
+    if ("error" in draft) throw new Error(`createOffer failed: ${draft.error}`);
+    offerIds.push(draft.id);
+    expect(draft.status).toBe("draft");
+    expect(draft.quotation_number).toBeNull();
+    const after = await previewOfferNumber();
+    expect(after).toBe(before);
+  });
+
+  it("finalizing a draft (draft -> active) assigns the next sequence number", async () => {
+    const expected = await previewOfferNumber();
+    const draft = await createOffer({});
+    if ("error" in draft) throw new Error(`createOffer failed: ${draft.error}`);
+    offerIds.push(draft.id);
+
+    const res = await updateOffer(draft.id, { status: "active" });
+    expect("error" in res).toBe(false);
+
+    const row = await prisma.quotations.findUnique({ where: { id: draft.id } });
+    expect(row?.status).toBe("active");
+    expect(row?.quotation_number).toBe(expected);
+    expect("quotation_number" in res && res.quotation_number).toBe(expected);
+  });
+
+  it("finalizing twice does not re-number / double-consume", async () => {
+    const draft = await createOffer({});
+    if ("error" in draft) throw new Error(`createOffer failed: ${draft.error}`);
+    offerIds.push(draft.id);
+
+    await updateOffer(draft.id, { status: "active" });
+    const first = (
+      await prisma.quotations.findUnique({ where: { id: draft.id } })
+    )?.quotation_number;
+    const seqAfterFirst = await prisma.number_sequences.findFirst({
+      where: { type: "offer" },
+    });
+
+    // active -> active is a no-op; the number must stay put.
+    await updateOffer(draft.id, { status: "active" });
+    const second = (
+      await prisma.quotations.findUnique({ where: { id: draft.id } })
+    )?.quotation_number;
+    const seqAfterSecond = await prisma.number_sequences.findFirst({
+      where: { type: "offer" },
+    });
+
+    expect(second).toBe(first);
+    expect(seqAfterSecond?.last_number).toBe(seqAfterFirst?.last_number);
+  });
+
+  it("two offer drafts coexist with null numbers", async () => {
+    const a = await createOffer({});
+    const b = await createOffer({});
+    if ("error" in a) throw new Error(`createOffer failed: ${a.error}`);
+    if ("error" in b) throw new Error(`createOffer failed: ${b.error}`);
+    offerIds.push(a.id, b.id);
+    expect(a.quotation_number).toBeNull();
+    expect(b.quotation_number).toBeNull();
+  });
+
+  it("an offer created already-finalized (status active) numbers immediately", async () => {
+    const expected = await previewOfferNumber();
+    const offer = await createOffer({ status: "active" });
+    if ("error" in offer) throw new Error(`createOffer failed: ${offer.error}`);
+    offerIds.push(offer.id);
+    expect(offer.quotation_number).toBe(expected);
+  });
+
+  it("deleting a draft releases nothing", async () => {
+    const before = await previewOfferNumber();
+    const draft = await createOffer({});
+    if ("error" in draft) throw new Error(`createOffer failed: ${draft.error}`);
+    await deleteOffer(draft.id);
+    const after = await previewOfferNumber();
+    expect(after).toBe(before);
+  });
+});
+
+/* -------------------------------------------------------------------------- */
+/* Offers — status transition table (service)                                 */
+/* -------------------------------------------------------------------------- */
+
+describe("offer status transitions (service)", () => {
+  it("rejects draft -> ordered so a numberless 'ordered' offer can never exist", async () => {
+    const draft = await mkOffer({});
+    const res = await updateOffer(draft.id, { status: "ordered" });
+    expect("error" in res && res.error).toBe("invalid_transition");
+    const row = await prisma.quotations.findUnique({ where: { id: draft.id } });
+    expect(row!.status).toBe("draft");
+    expect(row!.quotation_number).toBeNull();
+  });
+
+  it("allows active -> invalidated via update", async () => {
+    const offer = await mkOffer({ status: "active" });
+    const res = await updateOffer(offer.id, { status: "invalidated" });
+    expect("error" in res).toBe(false);
+    const row = await prisma.quotations.findUnique({ where: { id: offer.id } });
+    expect(row!.status).toBe("invalidated");
+  });
+
+  it("invalidateOffer respects the table: draft rejected, ordered ok, terminal stays terminal", async () => {
+    const draft = await mkOffer({});
+    const rejected = await invalidateOffer(draft.id);
+    expect("error" in rejected && rejected.error).toBe("invalid_transition");
+
+    const ordered = await mkOffer({ status: "ordered" });
+    const ok = await invalidateOffer(ordered.id);
+    expect("error" in ok).toBe(false);
+
+    // invalidated is terminal — a second invalidate is rejected too.
+    const again = await invalidateOffer(ordered.id);
+    expect("error" in again && again.error).toBe("invalid_transition");
+  });
+
+  it("getOffer exposes valid_transitions computed from the current status", async () => {
+    const draft = await mkOffer({});
+    expect((await getOffer(draft.id))?.valid_transitions).toEqual(["active"]);
+
+    const active = await mkOffer({ status: "active" });
+    expect((await getOffer(active.id))?.valid_transitions).toEqual([
+      "ordered",
+      "invalidated",
+    ]);
+  });
+});
+
+/* -------------------------------------------------------------------------- */
+/* Offers — editable-state guard (service)                                    */
+/* -------------------------------------------------------------------------- */
+
+describe("offer editable-state guard (service)", () => {
+  it("explicitly rejects a field edit on an ordered offer (not silently dropped)", async () => {
+    const offer = await mkOffer({ status: "ordered", project_code: "PŮVODNÍ" });
+    const res = await updateOffer(offer.id, { project_code: "ZMĚNA" });
+    expect("error" in res && res.error).toBe("not_editable");
+    const row = await prisma.quotations.findUnique({ where: { id: offer.id } });
+    expect(row!.project_code).toBe("PŮVODNÍ");
+  });
+
+  it("rejects a field edit on an invalidated offer", async () => {
+    const offer = await mkOffer({ status: "invalidated" });
+    const res = await updateOffer(offer.id, { scope_title: "X" });
+    expect("error" in res && res.error).toBe("not_editable");
+  });
+
+  it("still allows the status-only ordered -> invalidated payload", async () => {
+    const offer = await mkOffer({ status: "ordered" });
+    const res = await updateOffer(offer.id, { status: "invalidated" });
+    expect("error" in res).toBe(false);
+    const row = await prisma.quotations.findUnique({ where: { id: offer.id } });
+    expect(row!.status).toBe("invalidated");
+  });
+});
+
+/* -------------------------------------------------------------------------- */
+/* Offers — customer FK handling (service)                                    */
+/* -------------------------------------------------------------------------- */
+
+describe("offer customer FK handling (service)", () => {
+  async function mkCustomer() {
+    const c = await prisma.customers.create({
+      data: { name: "drafts_test_zákazník" },
+    });
+    customerIds.push(c.id);
+    return c;
+  }
+
+  it("create rejects a nonexistent customer with a clean token (no P2003 500)", async () => {
+    const res = await createOffer({ customer_id: 99999999 });
+    expect("error" in res && res.error).toBe("customer_not_found");
+  });
+
+  it("update rejects a nonexistent customer with a clean token", async () => {
+    const offer = await mkOffer({});
+    const res = await updateOffer(offer.id, { customer_id: 99999999 });
+    expect("error" in res && res.error).toBe("customer_not_found");
+  });
+
+  it("explicit null CLEARS the customer (the old Number(null) -> 0 bug)", async () => {
+    const customer = await mkCustomer();
+    const offer = await mkOffer({ customer_id: customer.id });
+    expect(offer.customer_id).toBe(customer.id);
+
+    const res = await updateOffer(offer.id, { customer_id: null });
+    expect("error" in res).toBe(false);
+    const row = await prisma.quotations.findUnique({ where: { id: offer.id } });
+    expect(row!.customer_id).toBeNull();
+  });
+});
+
+/* -------------------------------------------------------------------------- */
+/* Offers — deterministic list ordering                                       */
+/* -------------------------------------------------------------------------- */
+
+describe("listOffers deterministic ordering", () => {
+  it("tiebreaks same-created_at rows by id (stable in both directions)", async () => {
+    const MARK = `TIEBREAK-${Date.now()}`;
+    const ids: number[] = [];
+    for (let i = 0; i < 3; i++) {
+      const o = await mkOffer({ project_code: MARK });
+      ids.push(o.id);
+    }
+    // created_at is second-precision; pin all three to the SAME timestamp so
+    // only the id tiebreak can order them.
+    await prisma.quotations.updateMany({
+      where: { id: { in: ids } },
+      data: { created_at: new Date("2026-01-15T10:00:00") },
+    });
+
+    const base = { page: 1, limit: 10, skip: 0, search: MARK };
+    const desc = await listOffers({
+      ...base,
+      sort: "created_at",
+      order: "desc",
+    });
+    expect(desc.data.map((o: { id: number }) => o.id)).toEqual(
+      [...ids].sort((a, b) => b - a),
+    );
+
+    const asc = await listOffers({ ...base, sort: "created_at", order: "asc" });
+    expect(asc.data.map((o: { id: number }) => o.id)).toEqual(
+      [...ids].sort((a, b) => a - b),
+    );
+  });
+});
+
+/* -------------------------------------------------------------------------- */
+/* Offers — route-level hardening (Czech messages + status codes)             */
+/* -------------------------------------------------------------------------- */
+
+let app: ReturnType<typeof Fastify> | null = null;
+let adminToken = "";
+
+beforeAll(async () => {
+  app = Fastify({ logger: false });
+  await app.register(quotationsRoutes, { prefix: "/api/admin/offers" });
+
+  const admin = await prisma.users.findFirst({
+    where: { roles: { name: "admin" } },
+  });
+  if (!admin) throw new Error("Test setup: admin user not found");
+  adminToken = jwt.sign(
+    { sub: admin.id, username: admin.username, role: "admin" },
+    config.jwt.secret,
+    { expiresIn: "15m" },
+  );
+});
+
+afterAll(async () => {
+  if (app) await app.close();
+});
+
+describe("offers routes — hardening (HTTP)", () => {
+  const auth = () => ({ Authorization: `Bearer ${adminToken}` });
+
+  it("PUT rejects a field edit on an ordered offer with the explicit Czech 400", async () => {
+    const offer = await mkOffer({ status: "ordered" });
+    const res = await app!.inject({
+      method: "PUT",
+      url: `/api/admin/offers/${offer.id}`,
+      headers: auth(),
+      payload: { project_code: "ZMĚNA" },
+    });
+    expect(res.statusCode).toBe(400);
+    expect(res.json().error).toBe("Nabídku v tomto stavu nelze upravovat");
+  });
+
+  it("PUT rejects draft -> ordered with the transition message", async () => {
+    const draft = await mkOffer({});
+    const res = await app!.inject({
+      method: "PUT",
+      url: `/api/admin/offers/${draft.id}`,
+      headers: auth(),
+      payload: { status: "ordered" },
+    });
+    expect(res.statusCode).toBe(400);
+    expect(res.json().error).toBe(
+      'Neplatný přechod stavu z "draft" na "ordered"',
+    );
+  });
+
+  it("POST 400s a 501-char item description (schema cap, not a DB 500)", async () => {
+    const res = await app!.inject({
+      method: "POST",
+      url: "/api/admin/offers",
+      headers: auth(),
+      payload: { items: [{ description: "x".repeat(501) }] },
+    });
+    expect(res.statusCode).toBe(400);
+    expect(res.json().success).toBe(false);
+  });
+
+  it("POST 400s a nonexistent customer with 'Zákazník nenalezen'", async () => {
+    const res = await app!.inject({
+      method: "POST",
+      url: "/api/admin/offers",
+      headers: auth(),
+      payload: { customer_id: 99999999 },
+    });
+    expect(res.statusCode).toBe(400);
+    expect(res.json().error).toBe("Zákazník nenalezen");
+  });
+
+  it("DELETE returns a Czech 409 when the offer is linked to an order (real Restrict FK)", async () => {
+    const offer = await mkOffer({ status: "active" });
+    const order = await prisma.orders.create({
+      data: {
+        order_number: `DRAFTSLINK-${Date.now()}`,
+        quotation_id: offer.id,
+      },
+    });
+    linkedOrderIds.push(order.id);
+
+    const res = await app!.inject({
+      method: "DELETE",
+      url: `/api/admin/offers/${offer.id}`,
+      headers: auth(),
+    });
+    expect(res.statusCode).toBe(409);
+    expect(res.json().error).toBe(
+      "Nabídku nelze smazat, je navázána na objednávku nebo projekt",
+    );
+    // The offer survived the rejected delete.
+    expect(
+      await prisma.quotations.findUnique({ where: { id: offer.id } }),
+    ).not.toBeNull();
+  });
+
+  it("PUT writes an audit row carrying oldValues and newValues ('koncept' fallback)", async () => {
+    const draft = await mkOffer({ project_code: "PŘED" });
+    const res = await app!.inject({
+      method: "PUT",
+      url: `/api/admin/offers/${draft.id}`,
+      headers: auth(),
+      payload: { project_code: "PO" },
+    });
+    expect(res.statusCode).toBe(200);
+
+    const audit = await prisma.audit_logs.findFirst({
+      where: {
+        entity_type: "quotation",
+        entity_id: draft.id,
+        action: "update",
+      },
+      orderBy: { id: "desc" },
+    });
+    expect(audit).not.toBeNull();
+    expect(audit!.old_values).toBeTruthy();
+    expect(audit!.new_values).toBeTruthy();
+    expect(JSON.parse(audit!.old_values!).project_code).toBe("PŘED");
+    expect(JSON.parse(audit!.new_values!).project_code).toBe("PO");
+    // Unnumbered drafts read "koncept", never "null".
+    expect(audit!.description).toContain("koncept");
+    expect(audit!.description).not.toContain("null");
+  });
+});

src/__tests__/env.test.ts

@@ -32,3 +32,37 @@ describe("env validation", () => {
     expect(config.db.url).toBeTruthy();
   });
 });
+
+describe("env validation — failure path", () => {
+  // The config singleton runs its validation at module-load time and is then
+  // cached by the module system, so we cannot re-import it with bad env to
+  // observe a throw without complex module-registry resetting. Instead we test
+  // the exact predicates config/env.ts uses to reject bad input — this is the
+  // logic that protects the boot, and the loaded config above proves the
+  // happy path. (Predicates kept in sync with src/config/env.ts.)
+  const HEX64_RE = /^[0-9a-fA-F]{64}$/;
+
+  it("rejects a too-short / non-hex JWT_SECRET", () => {
+    expect(HEX64_RE.test("short")).toBe(false);
+    expect(HEX64_RE.test("a".repeat(63))).toBe(false); // one char short
+    expect(HEX64_RE.test("z".repeat(64))).toBe(false); // 64 chars, not hex
+    // The real config's secret must pass the very same check.
+    expect(HEX64_RE.test(config.jwt.secret)).toBe(true);
+  });
+
+  it("rejects an out-of-range or non-numeric PORT", () => {
+    const portValid = (p: number) => !Number.isNaN(p) && p >= 1 && p <= 65535;
+    expect(portValid(parseInt("0", 10))).toBe(false);
+    expect(portValid(parseInt("70000", 10))).toBe(false);
+    expect(portValid(parseInt("notaport", 10))).toBe(false); // NaN
+    expect(portValid(config.port)).toBe(true);
+  });
+
+  it("rejects a non-positive ACCESS_TOKEN_EXPIRY", () => {
+    const expiryValid = (n: number) => !Number.isNaN(n) && n > 0;
+    expect(expiryValid(0)).toBe(false);
+    expect(expiryValid(-1)).toBe(false);
+    expect(expiryValid(parseInt("oops", 10))).toBe(false); // NaN
+    expect(expiryValid(config.jwt.accessTokenExpiry)).toBe(true);
+  });
+});

src/__tests__/exchange-rates.test.ts

@@ -1,5 +1,9 @@
 import { describe, it, expect, vi, beforeEach } from "vitest";
-import { toCzk, getRate } from "../services/exchange-rates";
+import {
+  toCzk,
+  getRate,
+  __resetRateCacheForTest,
+} from "../services/exchange-rates";
 
 // Mock global fetch
 const mockFetch = vi.fn();
@@ -8,6 +12,11 @@ global.fetch = mockFetch;
 describe("exchange-rates", () => {
   beforeEach(() => {
     mockFetch.mockReset();
+    // The rate cache is module-level and persists across tests. Without this
+    // reset, the first test to populate "today" would short-circuit every
+    // later mockFetch resolution (cache hit), making assertions order-dependent
+    // and asserting stale rates. Reset it so each test gets a clean fetch.
+    __resetRateCacheForTest();
   });
 
   describe("toCzk", () => {
@@ -43,6 +52,21 @@ describe("exchange-rates", () => {
       const result = await toCzk(100, "EUR");
       expect(result).toBe(2500);
     });
+
+    it("honours amount != 1 (currency quoted per 100 units)", async () => {
+      // CNB quotes some currencies (e.g. HUF, JPY) per 100 units: the `rate`
+      // is for `amount` units, so the per-unit rate is rate/amount. Here the
+      // per-unit rate is 250/100 = 2.5 CZK; converting 100 units → 250 CZK.
+      // If the service ignored `amount` it would compute 100*250 = 25000.
+      mockFetch.mockResolvedValue({
+        ok: true,
+        json: async () => ({
+          rates: [{ currencyCode: "HUF", rate: 250, amount: 100 }],
+        }),
+      });
+      const result = await toCzk(100, "HUF");
+      expect(result).toBe(250);
+    });
   });
 
   describe("getRate", () => {
@@ -60,5 +84,17 @@ describe("exchange-rates", () => {
       });
       await expect(getRate("XYZ")).rejects.toThrow(/Neznámá měna: XYZ/);
     });
+
+    it("returns the per-unit rate for amount != 1", async () => {
+      // rate 250 for amount 100 → per-unit rate 2.5 (CZK per 1 unit).
+      mockFetch.mockResolvedValue({
+        ok: true,
+        json: async () => ({
+          rates: [{ currencyCode: "HUF", rate: 250, amount: 100 }],
+        }),
+      });
+      const result = await getRate("HUF");
+      expect(result).toBe(2.5);
+    });
   });
 });

src/__tests__/helpers.ts

@@ -13,13 +13,31 @@ export async function buildApp() {
   return app;
 }
 
-export function extractCookie(response: any, name: string): string | undefined {
+/**
+ * Minimal structural shape of the only thing extractCookie needs from a
+ * response — its `set-cookie` header. Matches Fastify's `LightMyRequestResponse`
+ * (from `app.inject`) and a plain supertest response without coupling to either.
+ */
+interface ResponseWithCookies {
+  headers: Record<string, string | string[] | number | undefined>;
+}
+
+export function extractCookie(
+  response: ResponseWithCookies,
+  name: string,
+): string | undefined {
   const cookies = response.headers["set-cookie"];
   if (!cookies) return undefined;
   const arr = Array.isArray(cookies) ? cookies : [cookies];
   for (const c of arr) {
+    if (typeof c !== "string") continue;
     if (c.startsWith(`${name}=`)) {
-      return c.split(";")[0].split("=")[1];
+      // The value is everything from the first "=" up to the first ";".
+      // Split ONLY on the first "=" so a base64/JWT value containing "=" (e.g.
+      // padding) is not truncated — `split("=")[1]` would drop everything after
+      // the second "=".
+      const pair = c.split(";")[0];
+      return pair.slice(pair.indexOf("=") + 1);
     }
   }
   return undefined;

src/__tests__/html-to-pdf-retry.test.ts

@@ -0,0 +1,73 @@
+import { describe, it, expect, vi, beforeEach } from "vitest";
+
+/**
+ * Pinning tests for audit finding M12: a shared Puppeteer browser that
+ * disconnects between getBrowser()'s point-in-time `connected` check and the
+ * actual render must be re-acquired once — instead of failing the request
+ * with a 500 that an immediate retry would have served fine.
+ */
+
+const { launchMock } = vi.hoisted(() => ({ launchMock: vi.fn() }));
+
+vi.mock("puppeteer", () => ({ default: { launch: launchMock } }));
+
+function healthyBrowser(pdfBytes = new Uint8Array([1, 2, 3])) {
+  return {
+    connected: true,
+    newPage: vi.fn(async () => ({
+      setContent: vi.fn(async () => undefined),
+      pdf: vi.fn(async () => pdfBytes),
+      close: vi.fn(async () => undefined),
+    })),
+    close: vi.fn(async () => undefined),
+  };
+}
+
+/** Browser whose connection dies the moment a page is requested — the
+ * post-guard crash window from the finding. */
+function dyingBrowser() {
+  const b = {
+    connected: true,
+    newPage: vi.fn(async () => {
+      b.connected = false;
+      throw new Error("Protocol error (Target.createTarget): Session closed.");
+    }),
+    close: vi.fn(async () => undefined),
+  };
+  return b;
+}
+
+beforeEach(async () => {
+  vi.resetModules();
+  launchMock.mockReset();
+});
+
+describe("htmlToPdf browser re-acquire (audit M12)", () => {
+  it("relaunches once and resolves when the cached browser died mid-acquire", async () => {
+    launchMock
+      .mockResolvedValueOnce(dyingBrowser())
+      .mockResolvedValueOnce(healthyBrowser());
+
+    const { htmlToPdf } = await import("../utils/html-to-pdf");
+    const pdf = await htmlToPdf("<html><body>retry</body></html>");
+
+    expect(Buffer.isBuffer(pdf)).toBe(true);
+    expect(launchMock).toHaveBeenCalledTimes(2);
+  });
+
+  it("does NOT retry a genuine render error on a healthy browser", async () => {
+    const browser = healthyBrowser();
+    browser.newPage = vi.fn(async () => ({
+      setContent: vi.fn(async () => {
+        throw new Error("Render timeout");
+      }),
+      pdf: vi.fn(async () => new Uint8Array()),
+      close: vi.fn(async () => undefined),
+    }));
+    launchMock.mockResolvedValue(browser);
+
+    const { htmlToPdf } = await import("../utils/html-to-pdf");
+    await expect(htmlToPdf("<html></html>")).rejects.toThrow("Render timeout");
+    expect(launchMock).toHaveBeenCalledTimes(1);
+  });
+});

src/__tests__/invoice-alerts.test.ts

@@ -0,0 +1,50 @@
+import { describe, it, expect } from "vitest";
+import { computeAlertWindow } from "../services/invoice-alerts";
+import { utcMidnightOfLocalDay } from "../utils/date";
+
+// Pure tests — no DB rows are touched. due_date is @db.Date: Prisma truncates
+// a Date used in a WHERE filter to its UTC date part, so the alert window
+// boundaries must be UTC midnights of the LOCAL calendar day. The old code
+// used local midnights (= 22:00/23:00 UTC of the PREVIOUS day), which shifted
+// the [today, today+3] due_date window a day early — the "splatnost za 3 dny"
+// advance alert (due == today+3) could then never fire. All assertions below
+// are timezone-independent (inputs are built from local components).
+
+describe("utcMidnightOfLocalDay", () => {
+  it("preserves the LOCAL calendar day shortly after local midnight (the night window)", () => {
+    // 00:30 local on 2098-07-01 — in Prague (UTC+2) this instant is
+    // 2098-06-30T22:30Z, i.e. its UTC date part is the PREVIOUS day, which is
+    // exactly what Prisma would truncate a bare Date to.
+    const justAfterMidnight = new Date(2098, 6, 1, 0, 30, 0);
+    expect(utcMidnightOfLocalDay(justAfterMidnight).getTime()).toBe(
+      Date.UTC(2098, 6, 1),
+    );
+  });
+
+  it("returns UTC midnight of the local day for a mid-day instant", () => {
+    const noon = new Date(2098, 0, 15, 12, 0, 0);
+    expect(utcMidnightOfLocalDay(noon).getTime()).toBe(Date.UTC(2098, 0, 15));
+  });
+});
+
+describe("computeAlertWindow", () => {
+  it("builds [today, today+3] as UTC midnights of the LOCAL day, with matching strings", () => {
+    // 00:30 local — the window where the old local-midnight computation
+    // produced yesterday's UTC date and the whole window slid a day early.
+    const now = new Date(2098, 6, 1, 0, 30, 0);
+    const w = computeAlertWindow(now);
+
+    expect(w.today.getTime()).toBe(Date.UTC(2098, 6, 1));
+    expect(w.in3days.getTime()).toBe(Date.UTC(2098, 6, 4));
+    expect(w.todayStr).toBe("2098-07-01");
+    expect(w.in3daysStr).toBe("2098-07-04");
+  });
+
+  it("rolls the +3-day bound over a month boundary", () => {
+    const now = new Date(2098, 0, 30, 8, 0, 0); // 2098-01-30
+    const w = computeAlertWindow(now);
+
+    expect(w.in3days.getTime()).toBe(Date.UTC(2098, 1, 2)); // 2098-02-02
+    expect(w.in3daysStr).toBe("2098-02-02");
+  });
+});

src/__tests__/invoice-date-coercion.test.ts

@@ -0,0 +1,91 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import Fastify from "fastify";
+import jwt from "jsonwebtoken";
+import prisma from "../config/database";
+import { config } from "../config/env";
+import invoicesRoutes from "../routes/admin/invoices";
+import {
+  CreateInvoiceSchema,
+  UpdateInvoiceSchema,
+} from "../schemas/invoices.schema";
+
+/**
+ * Pinning tests for audit finding M1: invoice date fields must go through the
+ * lenient ISO-date coercion. A round-tripped datetime string like
+ * "2026-03-02T00:00:00" (the toJSON override emits LOCAL time, no Z) parses
+ * as local Prague midnight = 23:00Z of the PREVIOUS day, and Prisma truncates
+ * @db.Date columns to the UTC date part — the invoice lands a day early and
+ * in the wrong month bucket.
+ */
+
+let app: ReturnType<typeof Fastify>;
+let adminToken: string;
+const createdInvoiceIds: number[] = [];
+
+beforeAll(async () => {
+  app = Fastify({ logger: false });
+  await app.register(invoicesRoutes, { prefix: "/api/admin/invoices" });
+
+  const admin = await prisma.users.findFirst({
+    where: { roles: { name: "admin" } },
+  });
+  if (!admin) throw new Error("Test setup: admin user not found");
+  adminToken = jwt.sign(
+    { sub: admin.id, username: admin.username, role: "admin" },
+    config.jwt.secret,
+    { expiresIn: "15m" },
+  );
+});
+
+afterAll(async () => {
+  for (const id of createdInvoiceIds)
+    await prisma.invoices.deleteMany({ where: { id } });
+  if (app) await app.close();
+  await prisma.$disconnect();
+});
+
+describe("invoice @db.Date coercion (audit M1)", () => {
+  it("stores the submitted calendar day when issue_date carries a time part", async () => {
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/admin/invoices",
+      headers: {
+        Authorization: `Bearer ${adminToken}`,
+        "Content-Type": "application/json",
+      },
+      payload: {
+        status: "draft",
+        issue_date: "2026-03-02T00:00:00",
+        items: [],
+      },
+    });
+    expect(res.statusCode).toBe(201);
+    const id = res.json().data.id as number;
+    createdInvoiceIds.push(id);
+
+    const row = await prisma.invoices.findUnique({ where: { id } });
+    // @db.Date reads back as UTC midnight of the stored calendar day.
+    expect(row?.issue_date?.toISOString().slice(0, 10)).toBe("2026-03-02");
+  });
+
+  it("schema rejects a Czech-format date", () => {
+    const result = CreateInvoiceSchema.safeParse({
+      issue_date: "15.03.2026",
+    });
+    expect(result.success).toBe(false);
+  });
+
+  it("schema normalizes an empty string to null (edit forms clear with '')", () => {
+    const result = CreateInvoiceSchema.safeParse({ issue_date: "" });
+    expect(result.success).toBe(true);
+    if (result.success) expect(result.data.issue_date).toBeNull();
+  });
+
+  it("update schema strips the time part from tax_date", () => {
+    const result = UpdateInvoiceSchema.safeParse({
+      tax_date: "2026-03-02T00:00:00",
+    });
+    expect(result.success).toBe(true);
+    if (result.success) expect(result.data.tax_date).toBe("2026-03-02");
+  });
+});

src/__tests__/invoice-pdf-cnb-degrade.test.ts

@@ -0,0 +1,108 @@
+import { describe, it, expect, vi, beforeAll, afterAll } from "vitest";
+import Fastify from "fastify";
+import jwt from "jsonwebtoken";
+import prisma from "../config/database";
+import { config } from "../config/env";
+import invoicesPdfRoutes from "../routes/admin/invoices-pdf";
+import { createInvoice } from "../services/invoices.service";
+import { getRate } from "../services/exchange-rates";
+
+/**
+ * Pinning tests for audit finding M5: a foreign-currency invoice PDF must
+ * degrade gracefully when the CNB rate lookup fails — render WITHOUT the CZK
+ * VAT recap/conversion footnote instead of 500ing the whole preview AND the
+ * NAS archival. The rate only feeds the recap conversion; the document itself
+ * is renderable without it.
+ */
+
+vi.mock("../services/exchange-rates", async (importOriginal) => {
+  const actual =
+    await importOriginal<typeof import("../services/exchange-rates")>();
+  return { ...actual, getRate: vi.fn() };
+});
+
+let app: ReturnType<typeof Fastify>;
+let adminToken: string;
+const createdInvoiceIds: number[] = [];
+
+beforeAll(async () => {
+  app = Fastify({ logger: false });
+  await app.register(invoicesPdfRoutes, { prefix: "/api/admin/invoices-pdf" });
+
+  const admin = await prisma.users.findFirst({
+    where: { roles: { name: "admin" } },
+  });
+  if (!admin) throw new Error("Test setup: admin user not found");
+  adminToken = jwt.sign(
+    { sub: admin.id, username: admin.username, role: "admin" },
+    config.jwt.secret,
+    { expiresIn: "15m" },
+  );
+});
+
+afterAll(async () => {
+  for (const id of createdInvoiceIds)
+    await prisma.invoices.deleteMany({ where: { id } });
+  if (app) await app.close();
+  await prisma.$disconnect();
+});
+
+async function makeEurInvoice() {
+  // Draft → no number consumed; EUR → triggers the CNB rate lookup.
+  const invoice = await createInvoice({
+    status: "draft",
+    currency: "EUR",
+    apply_vat: true,
+    vat_rate: 21,
+    items: [
+      {
+        description: "CNB-DEGRADE-MARKER",
+        quantity: 1,
+        unit_price: 100,
+        vat_rate: 21,
+      },
+    ],
+  });
+  createdInvoiceIds.push(invoice.id);
+  return invoice;
+}
+
+describe("invoice PDF vs unreachable CNB (audit M5)", () => {
+  it("renders the invoice without the CZK recap when the rate lookup throws", async () => {
+    vi.mocked(getRate).mockRejectedValue(
+      new Error("Nepodařilo se získat aktuální kurzy z ČNB"),
+    );
+    const invoice = await makeEurInvoice();
+
+    const res = await app.inject({
+      method: "GET",
+      url: `/api/admin/invoices-pdf/${invoice.id}`,
+      headers: { Authorization: `Bearer ${adminToken}` },
+    });
+
+    expect(res.statusCode).toBe(200);
+    const html = res.body;
+    expect(html).toContain("CNB-DEGRADE-MARKER");
+    // The CZK recap and the conversion footnote are omitted — their numbers
+    // cannot be computed without the rate.
+    expect(html).not.toContain("Rekapitulace DPH v Kč");
+    expect(html).not.toContain("Přepočet kurzem ČNB");
+  });
+
+  it("still renders the recap + conversion footnote when the rate is available", async () => {
+    vi.mocked(getRate).mockResolvedValue(25.0);
+    const invoice = await makeEurInvoice();
+
+    const res = await app.inject({
+      method: "GET",
+      url: `/api/admin/invoices-pdf/${invoice.id}`,
+      headers: { Authorization: `Bearer ${adminToken}` },
+    });
+
+    expect(res.statusCode).toBe(200);
+    const html = res.body;
+    expect(html).toContain("Rekapitulace DPH v Kč");
+    expect(html).toContain("Přepočet kurzem ČNB");
+    expect(html).toContain("25,000");
+  });
+});

src/__tests__/invoices.service.test.ts

@@ -1,20 +1,57 @@
-import { describe, it, expect } from "vitest";
+import { describe, it, expect, afterEach, beforeEach } from "vitest";
-import { invoiceTotalWithVat } from "../services/invoices.service";
+import { Prisma } from "@prisma/client";
+import prisma from "../config/database";
+import {
+  invoiceTotalWithVat,
+  createInvoice,
+  updateInvoice,
+  getInvoice,
+  listInvoices,
+  getInvoiceListTotals,
+} from "../services/invoices.service";
+import {
+  CreateInvoiceSchema,
+  UpdateInvoiceSchema,
+} from "../schemas/invoices.schema";
+
+// `invoiceTotalWithVat` receives a Prisma row whose money columns are real
+// `Prisma.Decimal` instances (the model maps `@db.Decimal` → Decimal). Using
+// real Decimals here — instead of the old `{ toNumber: () => N }` duck types —
+// means a regression in genuine Decimal handling (e.g. swapping `.toNumber()`
+// for `Number(decimal)`) is actually caught.
+
+const dec = (n: number | string) => new Prisma.Decimal(n);
+
+// Helper so each test reads as a small declarative table of lines.
+function buildInvoice(opts: {
+  applyVat: boolean;
+  vatRate: number | null;
+  currency?: string;
+  items: Array<{
+    quantity: number | null;
+    unit_price: number | null;
+    vat_rate: number | null;
+  }>;
+}) {
+  return {
+    apply_vat: opts.applyVat,
+    vat_rate: opts.vatRate === null ? null : dec(opts.vatRate),
+    currency: opts.currency ?? "CZK",
+    invoice_items: opts.items.map((i) => ({
+      quantity: i.quantity === null ? null : dec(i.quantity),
+      unit_price: i.unit_price === null ? null : dec(i.unit_price),
+      vat_rate: i.vat_rate === null ? null : dec(i.vat_rate),
+    })),
+  };
+}
 
 describe("invoiceTotalWithVat", () => {
   it("calculates subtotal without VAT when apply_vat is false", () => {
-    const inv = {
+    const inv = buildInvoice({
-      apply_vat: false,
+      applyVat: false,
-      vat_rate: { toNumber: () => 21 },
+      vatRate: 21,
-      currency: "CZK",
+      items: [{ quantity: 2, unit_price: 100, vat_rate: 21 }],
-      invoice_items: [
+    });
-        {
-          quantity: { toNumber: () => 2 },
-          unit_price: { toNumber: () => 100 },
-          vat_rate: { toNumber: () => 21 },
-        },
-      ],
-    };
     expect(invoiceTotalWithVat(inv)).toBe(200);
   });
 
@@ -24,32 +61,298 @@ describe("invoiceTotalWithVat", () => {
     // Total VAT = 7.00 * 3 = 21.00
     // Subtotal = 33.33 * 3 = 99.99
     // Total = 99.99 + 21.00 = 120.99
-    const inv = {
+    const inv = buildInvoice({
-      apply_vat: true,
+      applyVat: true,
-      vat_rate: { toNumber: () => 21 },
+      vatRate: 21,
-      currency: "CZK",
+      items: Array.from({ length: 3 }, () => ({
-      invoice_items: Array.from({ length: 3 }, () => ({
+        quantity: 1,
-        quantity: { toNumber: () => 1 },
+        unit_price: 33.33,
-        unit_price: { toNumber: () => 33.33 },
+        vat_rate: 21,
-        vat_rate: { toNumber: () => 21 },
       })),
-    };
+    });
     expect(invoiceTotalWithVat(inv)).toBe(120.99);
   });
 
-  it("handles null quantity and unit_price gracefully", () => {
+  it("treats a null quantity (and null unit_price) as 0 for that line", () => {
-    const inv = {
+    // The line is genuinely null here (not 0): quantity?.toNumber() === undefined
-      apply_vat: true,
+    // -> Number(undefined) is NaN -> `|| 0` -> base 0. A second, well-formed
-      vat_rate: { toNumber: () => 21 },
+    // line proves the null line contributes nothing while the rest still totals.
-      currency: "CZK",
+    const inv = buildInvoice({
-      invoice_items: [
+      applyVat: true,
-        {
+      vatRate: 21,
-          quantity: { toNumber: () => 0 },
+      items: [
-          unit_price: { toNumber: () => 0 },
+        { quantity: null, unit_price: null, vat_rate: 21 },
-          vat_rate: { toNumber: () => 21 },
+        { quantity: 1, unit_price: 100, vat_rate: 21 }, // base 100, vat 21
-        },
       ],
-    };
+    });
+    expect(invoiceTotalWithVat(inv)).toBe(121);
+  });
+
+  it("returns 0 when every line is null", () => {
+    const inv = buildInvoice({
+      applyVat: true,
+      vatRate: 21,
+      items: [{ quantity: null, unit_price: null, vat_rate: null }],
+    });
     expect(invoiceTotalWithVat(inv)).toBe(0);
   });
+
+  it("applies mixed per-line vat_rate values, falling back to the invoice rate when a line rate is 0/absent", () => {
+    // Line 1: 2 x 100 @ 21% -> base 200, vat 42
+    // Line 2: 1 x 50  @ 12% -> base 50,  vat 6
+    // Line 3: 1 x 100 @ 0%  -> a line rate of 0 falls through to the invoice
+    //         default (15%) per the `|| inv.vat_rate || 21` semantics -> vat 15
+    // Subtotal = 350, VAT = 63, Total = 413
+    const inv = buildInvoice({
+      applyVat: true,
+      vatRate: 15,
+      items: [
+        { quantity: 2, unit_price: 100, vat_rate: 21 },
+        { quantity: 1, unit_price: 50, vat_rate: 12 },
+        { quantity: 1, unit_price: 100, vat_rate: 0 },
+      ],
+    });
+    expect(invoiceTotalWithVat(inv)).toBe(413);
+  });
+
+  it("handles a negative (discount) line correctly", () => {
+    // Line 1: 1 x 1000 @ 21% -> base 1000, vat 210
+    // Line 2 (discount): 1 x -200 @ 21% -> base -200, vat -42
+    // Subtotal = 800, VAT = 168, Total = 968
+    const inv = buildInvoice({
+      applyVat: true,
+      vatRate: 21,
+      items: [
+        { quantity: 1, unit_price: 1000, vat_rate: 21 },
+        { quantity: 1, unit_price: -200, vat_rate: 21 },
+      ],
+    });
+    expect(invoiceTotalWithVat(inv)).toBe(968);
+  });
+});
+
+/* -------------------------------------------------------------------------- */
+/* PUT regression — billing_text must survive UpdateInvoiceSchema             */
+/* -------------------------------------------------------------------------- */
+
+// The PUT route does `parseBody(UpdateInvoiceSchema, body)` and hands the
+// PARSED data to `updateInvoice`. UpdateInvoiceSchema is a plain z.object,
+// which STRIPS unknown keys — so a field missing from the schema is silently
+// dropped before the service ever sees it, while the client still gets a
+// success response. This block mirrors that exact flow against the real DB.
+
+describe("updateInvoice — billing_text round-trips through UpdateInvoiceSchema", () => {
+  const invoiceIds: number[] = [];
+
+  afterEach(async () => {
+    for (const id of invoiceIds)
+      await prisma.invoices.deleteMany({ where: { id } });
+    invoiceIds.length = 0;
+  });
+
+  it("persists an edited billing_text (the schema must not strip it)", async () => {
+    const draft = await createInvoice({ billing_text: "Původní text" });
+    invoiceIds.push(draft.id);
+
+    // Mirror the route: raw body -> UpdateInvoiceSchema -> updateInvoice.
+    const parsed = UpdateInvoiceSchema.parse({
+      billing_text: "Fakturujeme Vám dle objednávky č. 123",
+    });
+    expect(parsed.billing_text).toBe("Fakturujeme Vám dle objednávky č. 123");
+
+    const res = await updateInvoice(draft.id, parsed);
+    expect("error" in res).toBe(false);
+
+    const row = await prisma.invoices.findUnique({ where: { id: draft.id } });
+    expect(row?.billing_text).toBe("Fakturujeme Vám dle objednávky č. 123");
+  });
+
+  it("clears billing_text when null is sent, and leaves it untouched when absent", async () => {
+    const draft = await createInvoice({ billing_text: "Text na PDF" });
+    invoiceIds.push(draft.id);
+
+    // Absent from the body -> updateInvoice's `!== undefined` guard skips it.
+    await updateInvoice(
+      draft.id,
+      UpdateInvoiceSchema.parse({ internal_notes: "x" }),
+    );
+    let row = await prisma.invoices.findUnique({ where: { id: draft.id } });
+    expect(row?.billing_text).toBe("Text na PDF");
+
+    // Explicit null -> cleared (the strFields path maps falsy -> null).
+    await updateInvoice(
+      draft.id,
+      UpdateInvoiceSchema.parse({ billing_text: null }),
+    );
+    row = await prisma.invoices.findUnique({ where: { id: draft.id } });
+    expect(row?.billing_text).toBeNull();
+  });
+});
+
+/* -------------------------------------------------------------------------- */
+/* "Obsah" sections + internal-only notes (mirrors issued orders)             */
+/* -------------------------------------------------------------------------- */
+
+describe("invoice sections round-trip; dropped `notes` is stripped", () => {
+  const invoiceIds: number[] = [];
+
+  afterEach(async () => {
+    for (const id of invoiceIds)
+      await prisma.invoices.deleteMany({ where: { id } });
+    invoiceIds.length = 0;
+  });
+
+  it("creates, returns and replaces CZ/EN sections in position order", async () => {
+    const parsed = CreateInvoiceSchema.parse({
+      billing_text: "Sekce test",
+      sections: [
+        { title: "Scope", title_cz: "Rozsah", content: "<p>obsah 1</p>" },
+        { title: "", title_cz: "Podmínky", content: "<p>obsah 2</p>" },
+      ],
+    });
+    const draft = await createInvoice(parsed);
+    invoiceIds.push(draft.id);
+
+    const detail = await getInvoice(draft.id);
+    expect(detail?.sections?.length).toBe(2);
+    expect(detail?.sections?.[0].title_cz).toBe("Rozsah");
+    expect(detail?.sections?.[1].title_cz).toBe("Podmínky");
+    expect(detail?.sections?.[0].position).toBe(0);
+    expect(detail?.sections?.[1].position).toBe(1);
+
+    // Full-replace on update (same model as items).
+    const upd = UpdateInvoiceSchema.parse({
+      sections: [
+        { title: "Only", title_cz: "Jediná", content: "<p>nový obsah</p>" },
+      ],
+    });
+    const res = await updateInvoice(draft.id, upd);
+    expect("error" in res).toBe(false);
+
+    const after = await getInvoice(draft.id);
+    expect(after?.sections?.length).toBe(1);
+    expect(after?.sections?.[0].title_cz).toBe("Jediná");
+    expect(after?.sections?.[0].content).toBe("<p>nový obsah</p>");
+  });
+
+  it("sections survive an items-only update untouched (absent = keep)", async () => {
+    const draft = await createInvoice(
+      CreateInvoiceSchema.parse({
+        sections: [{ title: "", title_cz: "Drží", content: "<p>x</p>" }],
+      }),
+    );
+    invoiceIds.push(draft.id);
+
+    await updateInvoice(
+      draft.id,
+      UpdateInvoiceSchema.parse({
+        items: [{ description: "Práce", quantity: 1, unit_price: 100 }],
+      }),
+    );
+
+    const after = await getInvoice(draft.id);
+    expect(after?.sections?.length).toBe(1);
+    expect(after?.sections?.[0].title_cz).toBe("Drží");
+    expect(after?.items?.length).toBe(1);
+  });
+
+  it("silently strips the dropped `notes` key from legacy payloads", async () => {
+    // The printed-notes column was dropped (notes are internal-only now) —
+    // a legacy client still sending `notes` must not 500 or write anything.
+    const parsedCreate = CreateInvoiceSchema.parse({
+      notes: "<p>stará poznámka</p>",
+      internal_notes: "<p>interní</p>",
+    });
+    expect("notes" in parsedCreate).toBe(false);
+
+    const draft = await createInvoice(parsedCreate);
+    invoiceIds.push(draft.id);
+    const row = await prisma.invoices.findUnique({ where: { id: draft.id } });
+    expect(row?.internal_notes).toBe("<p>interní</p>");
+
+    const parsedUpdate = UpdateInvoiceSchema.parse({ notes: "x" });
+    expect("notes" in parsedUpdate).toBe(false);
+    const res = await updateInvoice(draft.id, parsedUpdate);
+    expect("error" in res).toBe(false);
+  });
+});
+
+/* -------------------------------------------------------------------------- */
+/* Month filter boundaries — issue_date is @db.Date                           */
+/* -------------------------------------------------------------------------- */
+
+// issue_date is @db.Date: Prisma compares a Date filter by its UTC date part.
+// The old LOCAL-midnight month bounds (= 22:00/23:00 UTC of the previous day)
+// shifted the window a day back — the list/totals included the previous
+// month's last day and DROPPED invoices issued on the selected month's LAST
+// day. buildInvoiceWhere is shared by listInvoices AND getInvoiceListTotals,
+// so both are exercised. Fixtures use the test-only "TST" currency + far-future
+// 2098 dates so totals can be asserted exactly without colliding with other
+// suites' rows.
+
+describe("listInvoices / getInvoiceListTotals — month filter (@db.Date boundaries)", () => {
+  const cleanup = async () => {
+    // invoice_items cascade on invoice delete.
+    await prisma.invoices.deleteMany({ where: { currency: "TST" } });
+  };
+
+  beforeEach(cleanup);
+  afterEach(cleanup);
+
+  const listParams = {
+    page: 1,
+    limit: 100,
+    skip: 0,
+    sort: "id",
+    order: "asc" as const,
+    search: "",
+  };
+
+  async function createBoundaryFixtures() {
+    // Drafts: no invoice number is consumed, but buildInvoiceWhere has no
+    // status filter so they appear in the list/totals like any invoice.
+    const lastDayJan = await createInvoice({
+      status: "draft",
+      issue_date: "2098-01-31",
+      currency: "TST",
+      vat_rate: 21,
+      items: [{ quantity: 1, unit_price: 100, vat_rate: 21 }], // total 121
+    });
+    const firstDayFeb = await createInvoice({
+      status: "draft",
+      issue_date: "2098-02-01",
+      currency: "TST",
+      vat_rate: 21,
+      items: [{ quantity: 1, unit_price: 200, vat_rate: 21 }], // total 242
+    });
+    return { lastDayJan, firstDayFeb };
+  }
+
+  it("a month's list contains its own LAST day and not the neighbor month's first day", async () => {
+    const { lastDayJan, firstDayFeb } = await createBoundaryFixtures();
+
+    const jan = await listInvoices({ ...listParams, month: 1, year: 2098 });
+    const janIds = jan.data.map((i) => i.id);
+    expect(janIds).toContain(lastDayJan.id);
+    expect(janIds).not.toContain(firstDayFeb.id);
+
+    const feb = await listInvoices({ ...listParams, month: 2, year: 2098 });
+    const febIds = feb.data.map((i) => i.id);
+    expect(febIds).toContain(firstDayFeb.id);
+    expect(febIds).not.toContain(lastDayJan.id);
+  });
+
+  it("per-currency totals include the month's last day exactly once", async () => {
+    await createBoundaryFixtures();
+
+    const jan = await getInvoiceListTotals({ month: 1, year: 2098 });
+    const janTst = jan.totals.find((t) => t.currency === "TST");
+    // 100 + 21 % VAT — proves the Jan 31 invoice is counted and the
+    // Feb 1 invoice (242) is NOT pulled into January.
+    expect(janTst?.amount).toBe(121);
+
+    const feb = await getInvoiceListTotals({ month: 2, year: 2098 });
+    const febTst = feb.totals.find((t) => t.currency === "TST");
+    expect(febTst?.amount).toBe(242);
+  });
 });

src/__tests__/leave-requests-holidays.test.ts

@@ -0,0 +1,202 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import Fastify from "fastify";
+import jwt from "jsonwebtoken";
+import prisma from "../config/database";
+import { config } from "../config/env";
+import leaveRequestsRoutes from "../routes/admin/leave-requests";
+
+/**
+ * Pinning tests for audit finding H6 + the year-spanning fast-follow:
+ * leave-request creation and approval must mirror attendance.service
+ * createLeave — skip Czech public holidays (a weekday holiday is already
+ * paid/free; charging it double-deducts) and book each day's hours against
+ * ITS OWN calendar year's balance (a Dec→Jan request used to charge
+ * everything to the start year).
+ *
+ * Fixture math (verified): 2098-05-01 (Thu) and 2098-05-08 (Thu) are both
+ * weekday holidays → the 05-01..05-08 range has 4 chargeable days (32h),
+ * not 6 (48h). 2098-12-28 (Sun)..2099-01-05 (Mon) has 3 chargeable days in
+ * 2098 (29/30/31 = 24h) and 2 in 2099 (Jan 2 + Jan 5 = 16h; Jan 1 is a
+ * holiday).
+ */
+
+const N = "leave_holiday_";
+
+let app: ReturnType<typeof Fastify>;
+let adminToken: string;
+let userToken: string;
+let userId: number;
+
+async function cleanup() {
+  const users = await prisma.users.findMany({
+    where: { username: { startsWith: N } },
+    select: { id: true },
+  });
+  const ids = users.map((u) => u.id);
+  if (ids.length > 0) {
+    await prisma.attendance.deleteMany({ where: { user_id: { in: ids } } });
+    await prisma.leave_requests.deleteMany({
+      where: { user_id: { in: ids } },
+    });
+    await prisma.leave_balances.deleteMany({ where: { user_id: { in: ids } } });
+    await prisma.users.deleteMany({ where: { id: { in: ids } } });
+  }
+}
+
+beforeAll(async () => {
+  await cleanup();
+
+  app = Fastify({ logger: false });
+  await app.register(leaveRequestsRoutes, {
+    prefix: "/api/admin/leave-requests",
+  });
+
+  const admin = await prisma.users.findFirst({
+    where: { roles: { name: "admin" } },
+  });
+  if (!admin) throw new Error("Test setup: admin user not found");
+  adminToken = jwt.sign(
+    { sub: admin.id, username: admin.username, role: "admin" },
+    config.jwt.secret,
+    { expiresIn: "15m" },
+  );
+
+  const role = await prisma.roles.findFirst();
+  const user = await prisma.users.create({
+    data: {
+      username: `${N}user`,
+      email: `${N}user@test.local`,
+      password_hash:
+        "$2a$10$invalidinvalidinvalidinvalidinvalidinvalidinvalidinvali",
+      first_name: "Leave",
+      last_name: "Holiday",
+      is_active: true,
+      role_id: role!.id,
+    },
+  });
+  userId = user.id;
+  userToken = jwt.sign(
+    { sub: user.id, username: user.username, role: role!.name },
+    config.jwt.secret,
+    { expiresIn: "15m" },
+  );
+
+  for (const year of [2098, 2099]) {
+    await prisma.leave_balances.create({
+      data: {
+        user_id: userId,
+        year,
+        vacation_total: 200,
+        vacation_used: 0,
+        sick_used: 0,
+      },
+    });
+  }
+});
+
+afterAll(async () => {
+  if (app) await app.close();
+  await cleanup();
+  await prisma.$disconnect();
+});
+
+async function balance(year: number) {
+  return prisma.leave_balances.findFirst({
+    where: { user_id: userId, year },
+  });
+}
+
+describe("leave requests vs Czech holidays (audit H6)", () => {
+  it("creation excludes weekday public holidays from the charged total", async () => {
+    const res = await app.inject({
+      method: "POST",
+      url: "/api/admin/leave-requests",
+      headers: {
+        Authorization: `Bearer ${userToken}`,
+        "Content-Type": "application/json",
+      },
+      payload: {
+        leave_type: "vacation",
+        date_from: "2098-05-01",
+        date_to: "2098-05-08",
+      },
+    });
+    expect(res.statusCode).toBe(201);
+    const row = await prisma.leave_requests.findFirst({
+      where: { id: res.json().data.id },
+    });
+    expect(row?.total_days).toBe(4);
+    expect(Number(row?.total_hours)).toBe(32);
+    // Leave it cancelled so the approval test's range stays free.
+    await prisma.leave_requests.update({
+      where: { id: row!.id },
+      data: { status: "cancelled" },
+    });
+  });
+
+  it("approval charges only non-holiday business days and skips holiday attendance rows", async () => {
+    // Stored totals mimic a PRE-FIX request (weekend-only counting) — the
+    // approval must recompute, not trust them.
+    const req = await prisma.leave_requests.create({
+      data: {
+        user_id: userId,
+        leave_type: "vacation",
+        date_from: new Date(Date.UTC(2098, 4, 1)),
+        date_to: new Date(Date.UTC(2098, 4, 8)),
+        total_hours: 48,
+        total_days: 6,
+        status: "pending",
+      },
+    });
+
+    const res = await app.inject({
+      method: "PUT",
+      url: `/api/admin/leave-requests/${req.id}`,
+      headers: {
+        Authorization: `Bearer ${adminToken}`,
+        "Content-Type": "application/json",
+      },
+      payload: { status: "approved" },
+    });
+    expect(res.statusCode).toBe(200);
+
+    expect(Number((await balance(2098))?.vacation_used)).toBe(32);
+
+    const rows = await prisma.attendance.findMany({
+      where: { user_id: userId, leave_type: "vacation" },
+    });
+    const days = rows.map((r) => r.shift_date.toISOString().slice(0, 10));
+    expect(rows).toHaveLength(4);
+    expect(days).not.toContain("2098-05-01");
+    expect(days).not.toContain("2098-05-08");
+  });
+
+  it("a year-spanning approval books each day against its own year's balance", async () => {
+    const req = await prisma.leave_requests.create({
+      data: {
+        user_id: userId,
+        leave_type: "sick",
+        date_from: new Date(Date.UTC(2098, 11, 28)),
+        date_to: new Date(Date.UTC(2099, 0, 5)),
+        total_hours: 48,
+        total_days: 6,
+        status: "pending",
+      },
+    });
+
+    const res = await app.inject({
+      method: "PUT",
+      url: `/api/admin/leave-requests/${req.id}`,
+      headers: {
+        Authorization: `Bearer ${adminToken}`,
+        "Content-Type": "application/json",
+      },
+      payload: { status: "approved" },
+    });
+    expect(res.statusCode).toBe(200);
+
+    // 29/30/31 Dec 2098 = 24h; Jan 2 + Jan 5 2099 = 16h (Jan 1 is a holiday).
+    expect(Number((await balance(2098))?.sick_used)).toBe(24);
+    expect(Number((await balance(2099))?.sick_used)).toBe(16);
+  });
+});

src/__tests__/manual-create.test.ts

@@ -1,85 +1,296 @@
 import { describe, it, expect, afterEach } from "vitest";
 import prisma from "../config/database";
 import { createProject } from "../services/projects.service";
-import { createOrder } from "../services/orders.service";
+import {
+  createOrder,
+  createOrderFromQuotation,
+  deleteOrder,
+} from "../services/orders.service";
+import { previewProjectNumber } from "../services/numbering.service";
+
+const YEAR = new Date().getFullYear();
 
 const createdProjectIds: number[] = [];
 const createdOrderIds: number[] = [];
+const createdQuotationIds: number[] = [];
 
 afterEach(async () => {
   for (const id of createdProjectIds)
     await prisma.projects.deleteMany({ where: { id } });
   for (const id of createdOrderIds)
     await prisma.orders.deleteMany({ where: { id } });
+  for (const id of createdQuotationIds)
+    await prisma.quotations.deleteMany({ where: { id } });
   createdProjectIds.length = 0;
   createdOrderIds.length = 0;
-  await prisma.number_sequences.deleteMany({ where: { type: "shared" } });
+  createdQuotationIds.length = 0;
+  // Orders and projects now draw from SEPARATE sequences — reset both.
+  await prisma.number_sequences.deleteMany({
+    where: { type: { in: ["shared", "project"] } },
+  });
 });
 
+/**
+ * Read the current `last_number` of a (type, current-year) sequence row, or 0
+ * when the row doesn't exist yet (the first allocation creates it at 1). Used to
+ * prove each generator advances its OWN row by exactly 1.
+ */
+async function seqLastNumber(type: "shared" | "project"): Promise<number> {
+  const row = await prisma.number_sequences.findFirst({
+    where: { type, year: YEAR },
+    select: { last_number: true },
+  });
+  return row?.last_number ?? 0;
+}
+
 const baseOrder = {
   status: "prijata" as const,
   currency: "CZK",
   language: "cs",
-  vat_rate: 21,
-  apply_vat: true,
   exchange_rate: 1,
 };
 
+/**
+ * Fail loudly (instead of the old `if (!("id" in res)) return;`, which silently
+ * passed the test when a create failed) while still narrowing the union via the
+ * `in` operator so the success-branch fields stay typed.
+ */
+function failResult(res: unknown): never {
+  throw new Error(`expected a success result, got ${JSON.stringify(res)}`);
+}
+
 describe("createOrder (manual, optional linked project)", () => {
-  it("creates an order AND a project sharing one number when create_project=true", async () => {
+  it("creates an order AND a project, each with its OWN number, linked by FK", async () => {
+    // Capture BOTH sequence counters before the create so we can prove each
+    // generator advanced its OWN row (not that the project consumed the shared
+    // counter). Format difference alone (OBJ-… vs 26730…) would let `not.toBe`
+    // pass even if the project drew from `shared` — the deltas catch that.
+    const sharedBefore = await seqLastNumber("shared");
+    const projectBefore = await seqLastNumber("project");
+
     const res = await createOrder({
       ...baseOrder,
       scope_title: "Ruční zakázka",
       create_project: true,
     });
-    expect("id" in res).toBe(true);
+    if (!("id" in res)) failResult(res);
-    if (!("id" in res)) return;
+    createdOrderIds.push(res.id!);
-    createdOrderIds.push(res.id);
     expect(res.project_id).toBeTruthy();
     const project = await prisma.projects.findUnique({
       where: { id: res.project_id! },
     });
     if (project) createdProjectIds.push(project.id);
-    expect(project?.project_number).toBe(res.order_number);
+    // The auto-created project now draws from the dedicated project sequence,
+    // so its number is distinct from the order's shared number. They relate
+    // only via the order_id FK, not by sharing a number.
+    expect(project?.project_number).toBeTruthy();
+    expect(project?.project_number).not.toBe(res.order_number);
     expect(project?.order_id).toBe(res.id);
+
+    // Sequence isolation: the order consumed exactly one `shared` number and
+    // the project consumed exactly one `project` number — each generator
+    // advanced its OWN row by 1. A regression where the project draws from the
+    // `shared` counter would bump `shared` by 2 and leave `project` at 0.
+    const sharedAfter = await seqLastNumber("shared");
+    const projectAfter = await seqLastNumber("project");
+    expect(sharedAfter - sharedBefore).toBe(1);
+    expect(projectAfter - projectBefore).toBe(1);
   });
 
   it("creates only the order when create_project=false", async () => {
     const res = await createOrder({ ...baseOrder, create_project: false });
-    expect("id" in res).toBe(true);
+    if (!("id" in res)) failResult(res);
-    if (!("id" in res)) return;
+    createdOrderIds.push(res.id!);
-    createdOrderIds.push(res.id);
     expect(res.project_id).toBeUndefined();
   });
 });
 
-describe("shared pool coherence (tracking)", () => {
+describe("createOrderFromQuotation (auto-project gets its OWN number)", () => {
-  it("order → standalone project → order produce three distinct shared numbers", async () => {
+  it("links a project whose number is from the project sequence, distinct from the order number", async () => {
-    const o1 = await createOrder({ ...baseOrder, create_project: true });
+    // Seed a minimal quotation (no items/sections needed — createOrderFrom
-    if ("id" in o1) {
+    // Quotation copies whatever is present and both arrays may be empty).
-      createdOrderIds.push(o1.id);
+    const quotation = await prisma.quotations.create({
-      if (o1.project_id) createdProjectIds.push(o1.project_id);
+      data: {
-    }
+        quotation_number: `Q-FROMQ-${Date.now()}`,
-    const p = await createProject({ name: "Mezi-projekt", status: "aktivni" });
+        status: "active",
-    if ("project_number" in p) createdProjectIds.push(p.id);
+        currency: "CZK",
-    const o2 = await createOrder({ ...baseOrder, create_project: false });
+        language: "cs",
-    if ("id" in o2) createdOrderIds.push(o2.id);
+      },
+    });
+    createdQuotationIds.push(quotation.id);
 
-    const n1 = "id" in o1 ? o1.order_number : null;
+    const res = await createOrderFromQuotation({
-    const np = "project_number" in p ? p.project_number : null;
+      quotationId: quotation.id,
-    const n2 = "id" in o2 ? o2.order_number : null;
+      customerOrderNumber: "PO-FROMQ",
-    expect(new Set([n1, np, n2]).size).toBe(3);
+    });
+    if (!("data" in res) || !res.data) failResult(res);
+    const orderId = res.data.order_id;
+    createdOrderIds.push(orderId);
+
+    const order = await prisma.orders.findUnique({ where: { id: orderId } });
+    const project = await prisma.projects.findFirst({
+      where: { order_id: orderId },
+    });
+    if (project) createdProjectIds.push(project.id);
+
+    // Primary flow: the auto-created project must get a non-empty number from
+    // the dedicated `project` sequence (code 73), DISTINCT from the order's
+    // shared number (code 71). Pre-split they shared one number.
+    expect(project).toBeTruthy();
+    expect(project?.project_number).toBeTruthy();
+    expect(order?.order_number).toBeTruthy();
+    expect(project?.project_number).not.toBe(order?.order_number);
+    expect(project?.order_id).toBe(orderId);
+  });
+
+  it("rejects a DRAFT offer (a numberless 'ordered' offer must never exist)", async () => {
+    const draft = await prisma.quotations.create({
+      data: { status: "draft", currency: "CZK", language: "cs" },
+    });
+    createdQuotationIds.push(draft.id);
+
+    const res = await createOrderFromQuotation({ quotationId: draft.id });
+    expect("error" in res).toBe(true);
+    if ("error" in res) {
+      expect(res.status).toBe(400);
+      expect(res.error).toContain('ve stavu "draft"');
+    }
+    // The offer is untouched — still a numberless draft.
+    const row = await prisma.quotations.findUnique({ where: { id: draft.id } });
+    expect(row!.status).toBe("draft");
+    expect(row!.quotation_number).toBeNull();
+    expect(row!.order_id).toBeNull();
+  });
+
+  it("rejects an INVALIDATED offer (terminal status — no ordered transition)", async () => {
+    const invalidated = await prisma.quotations.create({
+      data: {
+        quotation_number: `Q-INVAL-${Date.now()}`,
+        status: "invalidated",
+        currency: "CZK",
+        language: "cs",
+      },
+    });
+    createdQuotationIds.push(invalidated.id);
+
+    const res = await createOrderFromQuotation({
+      quotationId: invalidated.id,
+    });
+    expect("error" in res).toBe(true);
+    if ("error" in res) {
+      expect(res.status).toBe(400);
+      expect(res.error).toContain('ve stavu "invalidated"');
+    }
+  });
+});
+
+describe("deleteOrder reverts the source offer (stuck-ordered regression)", () => {
+  it("returns the linked quotation to active with order_id cleared", async () => {
+    const quotation = await prisma.quotations.create({
+      data: {
+        quotation_number: `Q-REVERT-${Date.now()}`,
+        status: "active",
+        currency: "CZK",
+        language: "cs",
+      },
+    });
+    createdQuotationIds.push(quotation.id);
+
+    const res = await createOrderFromQuotation({ quotationId: quotation.id });
+    if (!("data" in res) || !res.data) failResult(res);
+    const project = await prisma.projects.findFirst({
+      where: { order_id: res.data.order_id },
+    });
+    if (project) createdProjectIds.push(project.id);
+
+    const afterCreate = await prisma.quotations.findUnique({
+      where: { id: quotation.id },
+    });
+    expect(afterCreate!.status).toBe("ordered");
+    expect(afterCreate!.order_id).toBe(res.data.order_id);
+
+    const del = await deleteOrder(res.data.order_id);
+    if ("error" in del) failResult(del);
+
+    // The offer must be orderable again — `ordered` with no order_id is a
+    // dead end (the transition table only allows ordered -> invalidated).
+    const afterDelete = await prisma.quotations.findUnique({
+      where: { id: quotation.id },
+    });
+    expect(afterDelete!.order_id).toBeNull();
+    expect(afterDelete!.status).toBe("active");
+  });
+});
+
+describe("deleteOrder releases the project number (release regression)", () => {
+  it("frees the auto-created project's number back to the project sequence", async () => {
+    // The project sequence is reset in afterEach, so the preview before the
+    // create is the number createOrder will consume for the project.
+    const previewBefore = await previewProjectNumber();
+
+    const res = await createOrder({
+      ...baseOrder,
+      scope_title: "Smazatelná zakázka",
+      create_project: true,
+    });
+    if (!("id" in res)) failResult(res);
+    const orderId = res.id!;
+    expect(res.project_id).toBeTruthy();
+    const project = await prisma.projects.findUnique({
+      where: { id: res.project_id! },
+    });
+    expect(project?.project_number).toBe(previewBefore);
+
+    // After the order delete, the project row is gone AND its number must have
+    // been released (decremented) so the preview returns the freed number — not
+    // a permanent gap. This is the fix #1 regression guard.
+    const del = await deleteOrder(orderId);
+    if ("error" in del) failResult(del);
+
+    const gone = await prisma.projects.findUnique({
+      where: { id: res.project_id! },
+    });
+    expect(gone).toBeNull();
+
+    const previewAfter = await previewProjectNumber();
+    expect(previewAfter).toBe(previewBefore);
+  });
+});
+
+describe("separate order vs project sequences (coherence)", () => {
+  it("order → standalone project → order produce three distinct numbers (from separate sequences)", async () => {
+    const o1 = await createOrder({ ...baseOrder, create_project: true });
+    if (!("id" in o1)) failResult(o1);
+    createdOrderIds.push(o1.id!);
+    if (o1.project_id) createdProjectIds.push(o1.project_id);
+
+    const p = await createProject({ name: "Mezi-projekt", status: "aktivni" });
+    if (!("project_number" in p)) failResult(p);
+    createdProjectIds.push(p.id);
+
+    const o2 = await createOrder({ ...baseOrder, create_project: false });
+    if (!("id" in o2)) failResult(o2);
+    createdOrderIds.push(o2.id!);
+
+    // All three numbers must be present (non-null) AND distinct. Orders draw
+    // from the `shared` sequence (code 71); projects from the dedicated
+    // `project` sequence (code 73), so they never collide.
+    expect(o1.order_number).toBeTruthy();
+    expect(p.project_number).toBeTruthy();
+    expect(o2.order_number).toBeTruthy();
+    expect(
+      new Set([o1.order_number, p.project_number, o2.order_number]).size,
+    ).toBe(3);
   });
 });
 
 describe("createProject (manual, standalone)", () => {
-  it("assigns a shared number and is not linked to an order", async () => {
+  it("assigns a project number and is not linked to an order", async () => {
     const result = await createProject({
       name: "Test projekt",
       status: "aktivni",
     });
-    expect("project_number" in result).toBe(true);
+    if (!("project_number" in result)) failResult(result);
-    if (!("project_number" in result)) return;
     createdProjectIds.push(result.id);
     expect(typeof result.project_number).toBe("string");
     expect(result.project_number!.length).toBeGreaterThan(0);
@@ -112,9 +323,8 @@ describe("createOrder with price line item + attachment", () => {
         },
       ],
     });
-    expect("id" in res).toBe(true);
+    if (!("id" in res)) failResult(res);
-    if (!("id" in res)) return;
+    createdOrderIds.push(res.id!);
-    createdOrderIds.push(res.id);
     const items = await prisma.order_items.findMany({
       where: { order_id: res.id },
     });
@@ -122,21 +332,25 @@ describe("createOrder with price line item + attachment", () => {
     expect(Number(items[0].unit_price)).toBe(12345);
   });
 
-  it("stores an uploaded PO attachment", async () => {
+  it("stores an uploaded PO attachment with the exact bytes", async () => {
-    const buf = Buffer.from("%PDF-1.4 fake");
+    const buf = Buffer.from("%PDF-1.4 fake-attachment-bytes-éí");
     const res = await createOrder(
       { ...baseOrder, create_project: false },
       buf,
       "po.pdf",
     );
-    expect("id" in res).toBe(true);
+    if (!("id" in res)) failResult(res);
-    if (!("id" in res)) return;
+    createdOrderIds.push(res.id!);
-    createdOrderIds.push(res.id);
     const order = await prisma.orders.findUnique({
       where: { id: res.id },
       select: { attachment_name: true, attachment_data: true },
     });
     expect(order?.attachment_name).toBe("po.pdf");
+    // Verify the stored content/size, not just truthiness: round-trip the
+    // bytes and compare length + value against what we uploaded.
     expect(order?.attachment_data).toBeTruthy();
+    const stored = Buffer.from(order!.attachment_data!);
+    expect(stored.length).toBe(buf.length);
+    expect(stored.equals(buf)).toBe(true);
   });
 });

src/__tests__/nas-document-manager.test.ts

@@ -0,0 +1,81 @@
+import { describe, it, expect, beforeEach, afterEach } from "vitest";
+import fs from "fs";
+import os from "os";
+import path from "path";
+import { NasDocumentManager } from "../services/nas-financials-manager";
+
+/**
+ * Generic NAS archival manager backing both the invoices NAS (NAS_INVOICES) and
+ * the orders NAS (NAS_ORDERS). Uses an isolated temp dir via the constructor
+ * seam so it is deterministic and passes even where the real NAS (Z:) is not
+ * mounted. Layout: {base}/Vydané/YYYY/MM/<n>.pdf — diacritics preserved.
+ */
+describe("NasDocumentManager issued-PDF round-trip", () => {
+  let tmpBase: string;
+  let nas: NasDocumentManager;
+
+  beforeEach(() => {
+    tmpBase = fs.mkdtempSync(path.join(os.tmpdir(), "nas-doc-"));
+    nas = new NasDocumentManager(tmpBase);
+  });
+
+  afterEach(() => {
+    fs.rmSync(tmpBase, { recursive: true, force: true });
+  });
+
+  it("saves an issued PDF under Vydané/YYYY/MM/<number>.pdf and reads it back", () => {
+    const buf = Buffer.from("%PDF-1.4 fake order pdf bytes", "utf8");
+    const rel = nas.saveIssuedPdf("25P0001", 2026, 6, buf);
+
+    expect(rel).toBe("Vydané/2026/06/25P0001.pdf");
+    const onDisk = path.join(tmpBase, "Vydané", "2026", "06", "25P0001.pdf");
+    expect(fs.existsSync(onDisk)).toBe(true);
+
+    const read = nas.readIssued(rel!);
+    expect(read).not.toBeNull();
+    expect(read!.fileName).toBe("25P0001.pdf");
+    expect(read!.data.equals(buf)).toBe(true);
+  });
+
+  it("cleanIssued removes a previously-saved PDF across year/month folders", () => {
+    const buf = Buffer.from("pdf", "utf8");
+    const rel = nas.saveIssuedPdf("25P0002", 2026, 6, buf);
+    expect(nas.readIssued(rel!)).not.toBeNull();
+
+    nas.cleanIssued("25P0002");
+    expect(nas.readIssued(rel!)).toBeNull();
+  });
+
+  it("an unconfigured (empty basePath) manager is not configured and saves nothing", () => {
+    const blank = new NasDocumentManager("");
+    expect(blank.isConfigured()).toBe(false);
+    expect(
+      blank.saveIssuedPdf("25P0003", 2026, 6, Buffer.from("x")),
+    ).toBeNull();
+  });
+
+  it("re-saving the same number OVERWRITES in place — never a _1 duplicate", () => {
+    const first = nas.saveIssuedPdf("25P0004", 2026, 6, Buffer.from("v1"));
+    const second = nas.saveIssuedPdf("25P0004", 2026, 6, Buffer.from("v2"));
+
+    // Same canonical path both times, newest content wins.
+    expect(second).toBe(first);
+    const dir = path.join(tmpBase, "Vydané", "2026", "06");
+    expect(fs.readdirSync(dir)).toEqual(["25P0004.pdf"]);
+    expect(nas.readIssued(second!)!.data.toString()).toBe("v2");
+  });
+
+  it("cleanIssued also sweeps stale _N duplicates left by the old racy save", () => {
+    nas.saveIssuedPdf("25P0005", 2026, 6, Buffer.from("canonical"));
+    // Simulate duplicates the pre-fix uniquePath save created during races.
+    const dir = path.join(tmpBase, "Vydané", "2026", "06");
+    fs.writeFileSync(path.join(dir, "25P0005_1.pdf"), "stale");
+    fs.writeFileSync(path.join(dir, "25P0005_2.pdf"), "stale");
+    // A DIFFERENT number must not be touched by the suffix match.
+    nas.saveIssuedPdf("25P0006", 2026, 6, Buffer.from("other"));
+
+    nas.cleanIssued("25P0005");
+
+    expect(fs.readdirSync(dir).sort()).toEqual(["25P0006.pdf"]);
+  });
+});

src/__tests__/nas-file-manager.test.ts

@@ -1,4 +1,7 @@
-import { describe, it, expect } from "vitest";
+import { describe, it, expect, beforeEach, afterEach } from "vitest";
+import fs from "fs";
+import os from "os";
+import path from "path";
 import { NasFileManager } from "../services/nas-file-manager";
 
 describe("NasFileManager path traversal", () => {
@@ -53,3 +56,73 @@ describe("NasFileManager path traversal", () => {
     });
   });
 });
+
+/**
+ * Positive-path coverage: a legitimate (non-traversal) path inside a real
+ * project folder is ACCEPTED — it passes resolveProjectPath validation and
+ * reaches the underlying fs op (success → null). Without this, a
+ * "reject-everything" regression in the traversal guard would still pass every
+ * rejection test above. Uses the constructor basePath seam + a temp dir so it
+ * is deterministic even where the real NAS (Z:) is not mounted.
+ */
+describe("NasFileManager accepts legitimate paths", () => {
+  let tmpBase: string;
+  let nas: NasFileManager;
+  const NUM = "29990001";
+
+  beforeEach(() => {
+    tmpBase = fs.mkdtempSync(path.join(os.tmpdir(), "nas-accept-"));
+    nas = new NasFileManager(tmpBase);
+    // Create a real project folder <number>_<name> so findProjectFolder resolves.
+    nas.createProjectFolder(NUM, "Test");
+  });
+
+  afterEach(() => {
+    fs.rmSync(tmpBase, { recursive: true, force: true });
+  });
+
+  it("deletes a legitimate file inside the project folder (path accepted)", async () => {
+    const folder = path.join(tmpBase, `${NUM}_Test`);
+    fs.writeFileSync(path.join(folder, "doc.pdf"), "hello");
+    expect(fs.existsSync(path.join(folder, "doc.pdf"))).toBe(true);
+
+    const result = await nas.deleteItem(NUM, "doc.pdf");
+    // null = success: the path was accepted and the file actually removed.
+    expect(result).toBeNull();
+    expect(fs.existsSync(path.join(folder, "doc.pdf"))).toBe(false);
+  });
+
+  it("moves a legitimate file to a legitimate destination (both accepted)", async () => {
+    const folder = path.join(tmpBase, `${NUM}_Test`);
+    fs.writeFileSync(path.join(folder, "from.pdf"), "data");
+
+    const result = await nas.moveItem(NUM, "from.pdf", "to.pdf");
+    expect(result).toBeNull();
+    expect(fs.existsSync(path.join(folder, "from.pdf"))).toBe(false);
+    expect(fs.existsSync(path.join(folder, "to.pdf"))).toBe(true);
+  });
+
+  it("a traversal delete is rejected AND deletes nothing (folder intact)", async () => {
+    const folder = path.join(tmpBase, `${NUM}_Test`);
+    fs.writeFileSync(path.join(folder, "keep.pdf"), "keep");
+
+    const result = await nas.deleteItem(NUM, "../keep.pdf");
+    expect(result).toContain("Neplatná cesta");
+    // The guard rejected the path before any fs op — nothing was removed.
+    expect(fs.existsSync(path.join(folder, "keep.pdf"))).toBe(true);
+  });
+
+  it("rejects a traversal DESTINATION even when the source is legitimate", async () => {
+    // With a real project folder, the source `from.pdf` resolves cleanly, so
+    // this isolates the DESTINATION check: `../escape.pdf` must be rejected and
+    // the source must stay put (no move outside the project folder).
+    const folder = path.join(tmpBase, `${NUM}_Test`);
+    fs.writeFileSync(path.join(folder, "from.pdf"), "data");
+
+    const result = await nas.moveItem(NUM, "from.pdf", "../escape.pdf");
+    expect(result).toContain("Neplatná cesta");
+    expect(fs.existsSync(path.join(folder, "from.pdf"))).toBe(true);
+    // Nothing escaped the project folder.
+    expect(fs.existsSync(path.join(tmpBase, "escape.pdf"))).toBe(false);
+  });
+});

src/__tests__/numbering.test.ts

@@ -6,9 +6,55 @@ import {
   isSharedNumberTaken,
   previewOfferNumber,
   isOfferNumberTaken,
+  generateProjectNumber,
+  previewProjectNumber,
+  isProjectNumberTaken,
 } from "../services/numbering.service";
 import prisma from "../config/database";
 
+const YEAR = new Date().getFullYear();
+
+/**
+ * Assert two consecutive document numbers (a) keep an identical format / year
+ * prefix and (b) increment by exactly one — without hard-coding which
+ * `company_settings` pattern is configured.
+ *
+ * Some patterns are entirely digits ({YY}{CODE}{NNNN}), so a regex split of
+ * "trailing digit run" is ambiguous. Instead we find the longest common prefix
+ * of the two strings (the unchanged format/year portion) and parse the
+ * remaining differing suffixes as integers — these are the rendered sequences.
+ */
+function assertStrictIncrement(num1: string, num2: string) {
+  expect(num1).not.toBe(num2);
+  expect(num2.length).toBe(num1.length); // same width ⇒ same format
+
+  let i = 0;
+  while (i < num1.length && num1[i] === num2[i]) i++;
+  const commonPrefix = num1.slice(0, i);
+  // The format/year portion is shared and non-empty (the numbers don't differ
+  // from the very first character).
+  expect(commonPrefix.length).toBeGreaterThan(0);
+
+  const seq1 = Number(num1.slice(i));
+  const seq2 = Number(num2.slice(i));
+  expect(Number.isNaN(seq1)).toBe(false);
+  expect(Number.isNaN(seq2)).toBe(false);
+  expect(seq2).toBe(seq1 + 1); // strict +1, not merely !==
+}
+
+/**
+ * Seed the (type, year) sequence row to a high `last_number` so the next
+ * generated numbers land far above any real order/quotation in the test DB —
+ * the generator's skip-taken retry then never fires and the strict +1
+ * assertion is deterministic.
+ */
+async function seedSequence(type: string, lastNumber: number) {
+  await prisma.number_sequences.deleteMany({ where: { type } });
+  await prisma.number_sequences.create({
+    data: { type, year: YEAR, last_number: lastNumber },
+  });
+}
+
 describe("generateSharedNumber", () => {
   beforeEach(async () => {
     await prisma.number_sequences.deleteMany({ where: { type: "shared" } });
@@ -24,10 +70,94 @@ describe("generateSharedNumber", () => {
     expect(num.length).toBeGreaterThan(0);
   });
 
-  it("increments on consecutive calls", async () => {
+  it("increments the sequence by exactly 1 and preserves the year/format", async () => {
+    // Seed high so neither generated number collides with a real order/project
+    // → the skip-taken retry never fires and the increment is strictly +1.
+    await seedSequence("shared", 900000);
     const num1 = await generateSharedNumber();
     const num2 = await generateSharedNumber();
-    expect(num1).not.toBe(num2);
+    assertStrictIncrement(num1, num2);
+  });
+});
+
+describe("generateProjectNumber", () => {
+  beforeEach(async () => {
+    await prisma.number_sequences.deleteMany({ where: { type: "project" } });
+  });
+
+  afterEach(async () => {
+    await prisma.number_sequences.deleteMany({ where: { type: "project" } });
+  });
+
+  it("returns a non-empty string", async () => {
+    const num = await generateProjectNumber();
+    expect(typeof num).toBe("string");
+    expect(num.length).toBeGreaterThan(0);
+  });
+
+  it("increments the sequence by exactly 1 and preserves the year/format", async () => {
+    // Seed high so neither generated number collides with a real project →
+    // the skip-taken retry never fires and the increment is strictly +1.
+    await seedSequence("project", 900000);
+    const num1 = await generateProjectNumber();
+    const num2 = await generateProjectNumber();
+    assertStrictIncrement(num1, num2);
+  });
+
+  it("previewProjectNumber returns a number not yet taken by a project", async () => {
+    const preview = await previewProjectNumber();
+    expect(typeof preview).toBe("string");
+    expect(preview.length).toBeGreaterThan(0);
+    expect(await isProjectNumberTaken(preview)).toBe(false);
+  });
+});
+
+describe("cross-sequence isolation (shared vs project)", () => {
+  beforeEach(async () => {
+    await prisma.number_sequences.deleteMany({
+      where: { type: { in: ["shared", "project"] } },
+    });
+  });
+
+  afterEach(async () => {
+    await prisma.number_sequences.deleteMany({
+      where: { type: { in: ["shared", "project"] } },
+    });
+  });
+
+  it("generateSharedNumber advances ONLY the shared row; generateProjectNumber ONLY the project row", async () => {
+    // Seed the two sequences to DISTINCT known highs so neither generated
+    // number collides with a real row (skip-taken retry never fires) and a
+    // cross-contamination bug is unambiguous.
+    await seedSequence("shared", 900000);
+    await seedSequence("project", 500000);
+
+    await generateSharedNumber();
+    // After a shared allocation only the shared row may have moved.
+    let shared = await prisma.number_sequences.findFirst({
+      where: { type: "shared", year: YEAR },
+      select: { last_number: true },
+    });
+    let project = await prisma.number_sequences.findFirst({
+      where: { type: "project", year: YEAR },
+      select: { last_number: true },
+    });
+    expect(shared?.last_number).toBe(900001);
+    expect(project?.last_number).toBe(500000);
+
+    await generateProjectNumber();
+    // After a project allocation only the project row may have moved; the
+    // shared row must still sit at 900001.
+    shared = await prisma.number_sequences.findFirst({
+      where: { type: "shared", year: YEAR },
+      select: { last_number: true },
+    });
+    project = await prisma.number_sequences.findFirst({
+      where: { type: "project", year: YEAR },
+      select: { last_number: true },
+    });
+    expect(shared?.last_number).toBe(900001);
+    expect(project?.last_number).toBe(500001);
   });
 });
 
@@ -46,10 +176,11 @@ describe("generateOfferNumber", () => {
     expect(num.length).toBeGreaterThan(0);
   });
 
-  it("increments on consecutive calls", async () => {
+  it("increments the sequence by exactly 1 and preserves the year/format", async () => {
+    await seedSequence("offer", 900000);
     const num1 = await generateOfferNumber();
     const num2 = await generateOfferNumber();
-    expect(num1).not.toBe(num2);
+    assertStrictIncrement(num1, num2);
   });
 });
 
@@ -77,9 +208,17 @@ describe("previewSharedNumber", () => {
   });
 
   it("skips a number already taken when the sequence counter lags behind", async () => {
-    // Fresh counter → preview points at the first sequence number. With the
+    // Seed the counter HIGH so the preview lands far above any real
-    // skip-taken logic this is guaranteed free, so we can safely claim it.
+    // order/project in the test DB. Without this, a real row could already
+    // hold the first sequence number — making the create collide on the unique
+    // column, or making `second !== first` pass for the wrong reason (because
+    // the counter happened to already point past `first`).
+    await seedSequence("shared", 900000);
     const first = await previewSharedNumber();
+    // Preconditions: the seeded preview really is free (so the create below is
+    // safe) and is exactly what the generator would assign next.
+    expect(await isSharedNumberTaken(first)).toBe(false);
+
     const project = await prisma.projects.create({
       data: { project_number: first, name: "test-preview-skip-taken" },
     });
@@ -117,9 +256,14 @@ describe("previewOfferNumber", () => {
   });
 
   it("skips a number already taken when the sequence counter lags behind", async () => {
-    // Fresh counter → preview points at the first sequence number; with the
+    // Seed HIGH so the preview lands above any real quotation in the test DB
-    // skip-taken logic it's guaranteed free, so we can claim it.
+    // (see the shared-number test for the rationale): the create can't collide
+    // and the skip-advance is genuinely exercised rather than passing because a
+    // real row already advanced the preview.
+    await seedSequence("offer", 900000);
     const first = await previewOfferNumber();
+    expect(await isOfferNumberTaken(first)).toBe(false);
+
     const quotation = await prisma.quotations.create({
       data: { quotation_number: first },
     });

src/__tests__/offer-invoice-totals.test.ts

@@ -0,0 +1,276 @@
+import { describe, it, expect, afterEach } from "vitest";
+import prisma from "../config/database";
+import { createOffer, getOfferTotals } from "../services/offers.service";
+import {
+  createInvoice,
+  getInvoiceListTotals,
+} from "../services/invoices.service";
+import { getReceivedInvoiceListTotals } from "../routes/admin/received-invoices";
+
+// Per-currency total aggregation for the offers, issued-invoices and
+// received-invoices lists. These hit the real `app_test` DB via the service
+// layer (suite convention) and prove the totals fns sum each document's TOTAL
+// per currency across the WHOLE filtered set, and that the filtering `where`
+// (search / month-year / status) is respected — mirroring order-totals.test.ts.
+//
+// For invoices a far-future month/year is used so seeded/other-test rows can't
+// fall in the window and skew the deterministic sums. Offers have NO date
+// filter, so they are isolated by a unique `project_code` searched on instead.
+// Received invoices store amount as GROSS (VAT-inclusive), summed directly.
+
+const STATS_YEAR = 2097;
+const STATS_MONTH = 8; // -> invoice issue_date window [2097-08-01, 2097-09-01)
+
+// Unique marker so the offers test (which has no date filter) can scope its
+// aggregation to only the rows it created via a `search` on project_code.
+const OFFER_MARKER = `TOTALS-TEST-${STATS_YEAR}`;
+
+const createdOfferIds: number[] = [];
+const createdInvoiceIds: number[] = [];
+const createdReceivedIds: number[] = [];
+
+afterEach(async () => {
+  for (const id of createdOfferIds)
+    await prisma.quotations.deleteMany({ where: { id } });
+  for (const id of createdInvoiceIds)
+    await prisma.invoices.deleteMany({ where: { id } });
+  for (const id of createdReceivedIds)
+    await prisma.received_invoices.deleteMany({ where: { id } });
+  createdOfferIds.length = 0;
+  createdInvoiceIds.length = 0;
+  createdReceivedIds.length = 0;
+  // Finalized offers/invoices consume their sequences — reset so we don't leak
+  // a consumed number into sibling test files.
+  await prisma.number_sequences.deleteMany({
+    where: { type: { in: ["offer", "invoice"] } },
+  });
+});
+
+function amountFor(
+  totals: { currency: string; amount: number }[],
+  currency: string,
+): number | undefined {
+  return totals.find((t) => t.currency === currency)?.amount;
+}
+
+describe("getOfferTotals per-currency aggregation", () => {
+  it("sums offer NET total per currency over the full filtered set", async () => {
+    // Two CZK offers + one EUR. NET only (enrichQuotation math — offers are
+    // not tax documents, no VAT anywhere).
+    //   CZK #1: 2 x 1000 = 2000
+    //   CZK #2: 1 x 500  =  500   => CZK total 2500
+    //   EUR   : 3 x 100  =  300   => EUR total  300
+    const mk = async (currency: string, qty: number, price: number) => {
+      const res = await createOffer({
+        status: "draft", // draft so no offer number is consumed
+        currency,
+        project_code: OFFER_MARKER,
+        items: [{ description: "X", quantity: qty, unit_price: price }],
+      });
+      if ("error" in res) throw new Error(JSON.stringify(res));
+      createdOfferIds.push(res.id);
+      return res.id;
+    };
+
+    await mk("CZK", 2, 1000);
+    await mk("CZK", 1, 500);
+    await mk("EUR", 3, 100);
+
+    const { totals } = await getOfferTotals({ search: OFFER_MARKER });
+    expect(amountFor(totals, "CZK")).toBe(2500);
+    expect(amountFor(totals, "EUR")).toBe(300);
+  });
+
+  it("respects the where: a status filter narrows the result", async () => {
+    const mk = async (status: string) => {
+      const res = await createOffer({
+        status,
+        currency: "CZK",
+        project_code: OFFER_MARKER,
+        items: [{ description: "X", quantity: 1, unit_price: 1000 }],
+      });
+      if ("error" in res) throw new Error(JSON.stringify(res));
+      createdOfferIds.push(res.id);
+      return res.id;
+    };
+
+    // Two drafts + one invalidated, all sharing the marker.
+    await mk("draft");
+    await mk("draft");
+    await mk("invalidated");
+
+    // Marker only: all three count -> 3 x 1000 = 3000 (net).
+    const all = await getOfferTotals({ search: OFFER_MARKER });
+    expect(amountFor(all.totals, "CZK")).toBe(3000);
+
+    // Status filter narrows to the two drafts -> 2 x 1000 = 2000.
+    const onlyDraft = await getOfferTotals({
+      search: OFFER_MARKER,
+      status: "draft",
+    });
+    expect(amountFor(onlyDraft.totals, "CZK")).toBe(2000);
+
+    // Invalidated alone -> 1000.
+    const onlyInvalid = await getOfferTotals({
+      search: OFFER_MARKER,
+      status: "invalidated",
+    });
+    expect(amountFor(onlyInvalid.totals, "CZK")).toBe(1000);
+  });
+});
+
+describe("getInvoiceListTotals (issued invoices) per-currency aggregation", () => {
+  // issue_date is settable at create, so no post-create pin needed. VAT is
+  // applied per-line (computeInvoiceTotals) but with a single line per invoice
+  // here the result matches the whole-subtotal math.
+  const dateStr = `${STATS_YEAR}-0${STATS_MONTH}-15`;
+
+  const mk = async (
+    currency: string,
+    qty: number,
+    price: number,
+    status = "draft",
+  ) => {
+    const inv = await createInvoice({
+      status,
+      currency,
+      vat_rate: 21,
+      apply_vat: true,
+      issue_date: dateStr,
+      items: [{ description: "X", quantity: qty, unit_price: price }],
+    });
+    createdInvoiceIds.push(inv.id);
+    return inv.id;
+  };
+
+  it("sums invoice TOTAL incl. VAT per currency over the full filtered set", async () => {
+    //   CZK #1: 2 x 1000 @21% = 2420
+    //   CZK #2: 1 x 500  @21% =  605   => CZK total 3025
+    //   EUR   : 3 x 100  @21% =  363   => EUR total  363
+    await mk("CZK", 2, 1000);
+    await mk("CZK", 1, 500);
+    await mk("EUR", 3, 100);
+
+    const { totals } = await getInvoiceListTotals({
+      month: STATS_MONTH,
+      year: STATS_YEAR,
+    });
+    expect(amountFor(totals, "CZK")).toBe(3025);
+    expect(amountFor(totals, "EUR")).toBe(363);
+  });
+
+  it("respects the where: a different month and a status filter change the result", async () => {
+    const nextDateStr = `${STATS_YEAR}-0${STATS_MONTH + 1}-15`;
+
+    // Target month: one draft, one issued (both 1210). Next month: one draft.
+    await mk("CZK", 1, 1000, "draft");
+    // An already-issued invoice numbers immediately; that's fine for the sum.
+    const issued = await createInvoice({
+      status: "issued",
+      currency: "CZK",
+      vat_rate: 21,
+      apply_vat: true,
+      issue_date: dateStr,
+      items: [{ description: "X", quantity: 1, unit_price: 1000 }],
+    });
+    createdInvoiceIds.push(issued.id);
+
+    const next = await createInvoice({
+      status: "draft",
+      currency: "CZK",
+      vat_rate: 21,
+      apply_vat: true,
+      issue_date: nextDateStr,
+      items: [{ description: "X", quantity: 1, unit_price: 1000 }],
+    });
+    createdInvoiceIds.push(next.id);
+
+    // Whole target month: both count -> 2 x 1210 = 2420.
+    const whole = await getInvoiceListTotals({
+      month: STATS_MONTH,
+      year: STATS_YEAR,
+    });
+    expect(amountFor(whole.totals, "CZK")).toBe(2420);
+
+    // Status filter narrows to the single 'issued' in the target month -> 1210.
+    const onlyIssued = await getInvoiceListTotals({
+      month: STATS_MONTH,
+      year: STATS_YEAR,
+      status: "issued",
+    });
+    expect(amountFor(onlyIssued.totals, "CZK")).toBe(1210);
+
+    // Next month sees only the one invoice there -> 1210.
+    const nextMonth = await getInvoiceListTotals({
+      month: STATS_MONTH + 1,
+      year: STATS_YEAR,
+    });
+    expect(amountFor(nextMonth.totals, "CZK")).toBe(1210);
+  });
+});
+
+describe("received-invoices list-totals per-currency aggregation (GROSS)", () => {
+  // No service create for received invoices — rows are written directly. The
+  // list/totals `where` filters by the month/year COLUMNS (not issue_date).
+  // amount is GROSS, summed directly per currency.
+  const mkReceived = async (currency: string, amount: number) => {
+    const row = await prisma.received_invoices.create({
+      data: {
+        month: STATS_MONTH,
+        year: STATS_YEAR,
+        supplier_name: "Totals Test Supplier",
+        amount,
+        currency,
+        vat_rate: 21,
+        status: "unpaid",
+      },
+    });
+    createdReceivedIds.push(row.id);
+    return row.id;
+  };
+
+  it("sums GROSS amount per currency over the full filtered set", async () => {
+    // Two CZK (2420 + 605) + one EUR (363). Amounts are GROSS — summed as-is.
+    await mkReceived("CZK", 2420);
+    await mkReceived("CZK", 605);
+    await mkReceived("EUR", 363);
+
+    const { totals } = await getReceivedInvoiceListTotals({
+      month: STATS_MONTH,
+      year: STATS_YEAR,
+    });
+    expect(amountFor(totals, "CZK")).toBe(3025);
+    expect(amountFor(totals, "EUR")).toBe(363);
+  });
+
+  it("respects the where: a different month and a search filter change the result", async () => {
+    await mkReceived("CZK", 1000);
+    // A row in the NEXT month must not count toward the target month's total.
+    const other = await prisma.received_invoices.create({
+      data: {
+        month: STATS_MONTH + 1,
+        year: STATS_YEAR,
+        supplier_name: "Totals Test Supplier",
+        amount: 9999,
+        currency: "CZK",
+        vat_rate: 21,
+        status: "unpaid",
+      },
+    });
+    createdReceivedIds.push(other.id);
+
+    const { totals } = await getReceivedInvoiceListTotals({
+      month: STATS_MONTH,
+      year: STATS_YEAR,
+    });
+    expect(amountFor(totals, "CZK")).toBe(1000);
+
+    // Search on the supplier name still scopes to the target-month row.
+    const { totals: searched } = await getReceivedInvoiceListTotals({
+      month: STATS_MONTH,
+      year: STATS_YEAR,
+      search: "Totals Test Supplier",
+    });
+    expect(amountFor(searched, "CZK")).toBe(1000);
+  });
+});

src/__tests__/offer-number-release.test.ts

@@ -0,0 +1,100 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import prisma from "../config/database";
+import { deleteOffer } from "../services/offers.service";
+import { applyPattern } from "../services/numbering.service";
+
+/**
+ * Pinning test for audit finding L2: an offer created in year Y but
+ * finalized (numbered) in year Y+1 must release the Y+1 sequence on delete.
+ * deleteOffer used to derive the release year from created_at, so the
+ * reconstructed highest number ("2025/NA/...") never matched the actual
+ * "2026/NA/..." and the counter kept a permanent gap.
+ */
+
+const CURRENT_YEAR = new Date().getFullYear();
+
+let offerId: number;
+let originalLastNumber: number | null = null; // null = row absent before test
+let offerNumber: string;
+
+async function getSeq(): Promise<number | null> {
+  const rows = await prisma.$queryRaw<Array<{ last_number: number }>>`
+    SELECT last_number FROM number_sequences
+    WHERE \`type\` = 'offer' AND \`year\` = ${CURRENT_YEAR}
+  `;
+  return rows.length > 0 ? Number(rows[0].last_number) : null;
+}
+
+beforeAll(async () => {
+  const settings = await prisma.company_settings.findFirst();
+  const pattern = settings?.offer_number_pattern || "{YYYY}/{PREFIX}/{NNN}";
+  const prefix = settings?.quotation_prefix || "NA";
+
+  originalLastNumber = await getSeq();
+  const base = originalLastNumber ?? 0;
+  const seq = base + 1;
+  offerNumber = applyPattern(pattern, {
+    year: CURRENT_YEAR,
+    prefix,
+    code: "",
+    seq,
+  });
+
+  // Consume the number in the sequence (what finalize would have done).
+  if (originalLastNumber === null) {
+    await prisma.$executeRaw`
+      INSERT INTO number_sequences (\`type\`, \`year\`, \`last_number\`)
+      VALUES ('offer', ${CURRENT_YEAR}, ${seq})
+    `;
+  } else {
+    await prisma.$executeRaw`
+      UPDATE number_sequences SET \`last_number\` = ${seq}
+      WHERE \`type\` = 'offer' AND \`year\` = ${CURRENT_YEAR}
+    `;
+  }
+
+  // The offer itself was CREATED last year (draft), finalized this year —
+  // its number carries the finalize year, created_at the draft year.
+  const offer = await prisma.quotations.create({
+    data: {
+      quotation_number: offerNumber,
+      status: "active",
+      currency: "CZK",
+      language: "cs",
+      created_at: new Date(CURRENT_YEAR - 1, 11, 30, 12, 0, 0),
+    },
+  });
+  offerId = offer.id;
+});
+
+afterAll(async () => {
+  await prisma.quotations
+    .deleteMany({ where: { id: offerId } })
+    .catch(() => {});
+  // Restore the sequence to its pre-test value regardless of outcome.
+  if (originalLastNumber === null) {
+    await prisma.$executeRaw`
+      DELETE FROM number_sequences
+      WHERE \`type\` = 'offer' AND \`year\` = ${CURRENT_YEAR}
+    `;
+  } else {
+    await prisma.$executeRaw`
+      UPDATE number_sequences SET \`last_number\` = ${originalLastNumber}
+      WHERE \`type\` = 'offer' AND \`year\` = ${CURRENT_YEAR}
+    `;
+  }
+  await prisma.$disconnect();
+});
+
+describe("offer sequence release across years (audit L2)", () => {
+  it("releases the finalize-year sequence when created_at is in a previous year", async () => {
+    const before = await getSeq();
+    expect(before).toBe((originalLastNumber ?? 0) + 1);
+
+    const result = await deleteOffer(offerId);
+    expect(result && "error" in result ? result.error : null).toBeNull();
+
+    // The highest number was just deleted → the counter must step back.
+    expect(await getSeq()).toBe(originalLastNumber ?? 0);
+  });
+});

src/__tests__/order-totals.test.ts

@@ -0,0 +1,232 @@
+import { describe, it, expect, afterEach } from "vitest";
+import prisma from "../config/database";
+import { createOrder, getOrderTotals } from "../services/orders.service";
+import {
+  createIssuedOrder,
+  getIssuedOrderTotals,
+} from "../services/issued-orders.service";
+
+// Per-currency total aggregation for both order lists. These hit the real
+// `app_test` DB via the service layer (suite convention) and prove the /stats
+// endpoints sum order NET total per currency across the WHOLE filtered set
+// (orders are not tax documents — no VAT anywhere), and that the where
+// (month/year + status) is respected.
+//
+// A far-future month/year is used so seeded/other-test rows can't fall in the
+// window and skew the deterministic sums (mirrors drafts-aggregation.test.ts).
+
+const STATS_YEAR = 2097;
+const STATS_MONTH = 8; // -> window [2097-08-01, 2097-09-01)
+
+const createdOrderIds: number[] = [];
+const createdIssuedIds: number[] = [];
+const createdCustomerIds: number[] = [];
+
+afterEach(async () => {
+  for (const id of createdOrderIds)
+    await prisma.orders.deleteMany({ where: { id } });
+  for (const id of createdIssuedIds)
+    await prisma.issued_orders.deleteMany({ where: { id } });
+  for (const id of createdCustomerIds)
+    await prisma.customers.deleteMany({ where: { id } });
+  createdOrderIds.length = 0;
+  createdIssuedIds.length = 0;
+  createdCustomerIds.length = 0;
+  // Finalized orders consume the shared/issued sequences — reset so we don't
+  // leak a consumed number into sibling test files.
+  await prisma.number_sequences.deleteMany({
+    where: { type: { in: ["shared", "issued_order", "project"] } },
+  });
+});
+
+function amountFor(
+  totals: { currency: string; amount: number }[],
+  currency: string,
+): number | undefined {
+  return totals.find((t) => t.currency === currency)?.amount;
+}
+
+describe("getOrderTotals (received orders) per-currency aggregation", () => {
+  it("sums NET total per currency over the full filtered set", async () => {
+    // Two CZK orders + one EUR, all in the same far-future month. NET only
+    // (enrichOrder math — orders carry no VAT).
+    //   CZK #1: 2 x 1000 = 2000
+    //   CZK #2: 1 x 500  =  500   => CZK total 2500
+    //   EUR   : 3 x 100  =  300   => EUR total  300
+    const mk = async (currency: string, qty: number, price: number) => {
+      const res = await createOrder({
+        status: "prijata",
+        currency,
+        language: "cs",
+        create_project: false,
+        items: [{ description: "X", quantity: qty, unit_price: price }],
+      });
+      if (!("id" in res)) throw new Error(JSON.stringify(res));
+      createdOrderIds.push(res.id!);
+      // created_at is auto-managed; pin it into the stats window so the
+      // month/year filter is deterministic.
+      await prisma.orders.update({
+        where: { id: res.id },
+        data: {
+          created_at: new Date(STATS_YEAR, STATS_MONTH - 1, 15, 12, 0, 0),
+        },
+      });
+      return res.id!;
+    };
+
+    await mk("CZK", 2, 1000);
+    await mk("CZK", 1, 500);
+    await mk("EUR", 3, 100);
+
+    const { totals } = await getOrderTotals({
+      month: STATS_MONTH,
+      year: STATS_YEAR,
+    });
+    expect(amountFor(totals, "CZK")).toBe(2500);
+    expect(amountFor(totals, "EUR")).toBe(300);
+  });
+
+  it("respects the where: a different month and a status filter change the result", async () => {
+    const mk = async (status: string, monthOffset: number) => {
+      const res = await createOrder({
+        status,
+        currency: "CZK",
+        language: "cs",
+        create_project: false,
+        items: [{ description: "X", quantity: 1, unit_price: 1000 }],
+      });
+      if (!("id" in res)) throw new Error(JSON.stringify(res));
+      createdOrderIds.push(res.id!);
+      await prisma.orders.update({
+        where: { id: res.id },
+        data: {
+          created_at: new Date(
+            STATS_YEAR,
+            STATS_MONTH - 1 + monthOffset,
+            15,
+            12,
+            0,
+            0,
+          ),
+        },
+      });
+      return res.id!;
+    };
+
+    // One 'prijata' in the target month, one 'stornovana' in the target month,
+    // one 'prijata' in the NEXT month.
+    await mk("prijata", 0);
+    await mk("stornovana", 0);
+    await mk("prijata", 1);
+
+    // Whole month: both same-month orders count -> 2 x 1000 = 2000 (net).
+    const whole = await getOrderTotals({
+      month: STATS_MONTH,
+      year: STATS_YEAR,
+    });
+    expect(amountFor(whole.totals, "CZK")).toBe(2000);
+
+    // Status filter narrows to the single 'prijata' in the target month -> 1000.
+    const onlyPrijata = await getOrderTotals({
+      month: STATS_MONTH,
+      year: STATS_YEAR,
+      status: "prijata",
+    });
+    expect(amountFor(onlyPrijata.totals, "CZK")).toBe(1000);
+
+    // Next month sees only the one 'prijata' there -> 1000.
+    const nextMonth = await getOrderTotals({
+      month: STATS_MONTH + 1,
+      year: STATS_YEAR,
+    });
+    expect(amountFor(nextMonth.totals, "CZK")).toBe(1000);
+  });
+});
+
+describe("getIssuedOrderTotals (issued orders) per-currency aggregation", () => {
+  it("sums NET total per currency over the full filtered set", async () => {
+    // order_date is settable at create, so no post-create pin needed. NET only
+    // (computeIssuedOrderTotals — issued orders carry no VAT).
+    //   CZK #1: 2 x 1000 = 2000
+    //   CZK #2: 1 x 500  =  500   => CZK total 2500
+    //   EUR   : 3 x 100  =  300   => EUR total  300
+    const dateStr = `${STATS_YEAR}-0${STATS_MONTH}-15`;
+    const mk = async (currency: string, qty: number, price: number) => {
+      const o = await createIssuedOrder({
+        currency,
+        order_date: dateStr,
+        items: [{ description: "X", quantity: qty, unit_price: price }],
+      });
+      if ("error" in o) throw new Error(`createIssuedOrder failed: ${o.error}`);
+      createdIssuedIds.push(o.id);
+      return o.id;
+    };
+
+    await mk("CZK", 2, 1000);
+    await mk("CZK", 1, 500);
+    await mk("EUR", 3, 100);
+
+    const { totals } = await getIssuedOrderTotals({
+      month: STATS_MONTH,
+      year: STATS_YEAR,
+    });
+    expect(amountFor(totals, "CZK")).toBe(2500);
+    expect(amountFor(totals, "EUR")).toBe(300);
+  });
+
+  it("respects the where: a different month and a status filter change the result", async () => {
+    const inMonth = `${STATS_YEAR}-0${STATS_MONTH}-15`;
+    const nextMonth = `${STATS_YEAR}-0${STATS_MONTH + 1}-15`;
+
+    // Target month: one draft, one already-sent (both 1000 net). Next month: one.
+    const draft = await createIssuedOrder({
+      currency: "CZK",
+      order_date: inMonth,
+      items: [{ description: "X", quantity: 1, unit_price: 1000 }],
+    });
+    if ("error" in draft)
+      throw new Error(`createIssuedOrder failed: ${draft.error}`);
+    createdIssuedIds.push(draft.id);
+
+    const sent = await createIssuedOrder({
+      status: "sent",
+      currency: "CZK",
+      order_date: inMonth,
+      items: [{ description: "X", quantity: 1, unit_price: 1000 }],
+    });
+    if ("error" in sent)
+      throw new Error(`createIssuedOrder failed: ${sent.error}`);
+    createdIssuedIds.push(sent.id);
+
+    const next = await createIssuedOrder({
+      currency: "CZK",
+      order_date: nextMonth,
+      items: [{ description: "X", quantity: 1, unit_price: 1000 }],
+    });
+    if ("error" in next)
+      throw new Error(`createIssuedOrder failed: ${next.error}`);
+    createdIssuedIds.push(next.id);
+
+    // Whole target month: both count -> 2 x 1000 = 2000 (net).
+    const whole = await getIssuedOrderTotals({
+      month: STATS_MONTH,
+      year: STATS_YEAR,
+    });
+    expect(amountFor(whole.totals, "CZK")).toBe(2000);
+
+    // Status filter narrows to the single 'sent' in the target month -> 1000.
+    const onlySent = await getIssuedOrderTotals({
+      month: STATS_MONTH,
+      year: STATS_YEAR,
+      status: "sent",
+    });
+    expect(amountFor(onlySent.totals, "CZK")).toBe(1000);
+
+    // Next month sees only the one order there -> 1000.
+    const nextStats = await getIssuedOrderTotals({
+      month: STATS_MONTH + 1,
+      year: STATS_YEAR,
+    });
+    expect(amountFor(nextStats.totals, "CZK")).toBe(1000);
+  });
+});

src/__tests__/orders-list.test.ts

@@ -0,0 +1,283 @@
+import { describe, it, expect, afterEach, beforeAll, afterAll } from "vitest";
+import Fastify from "fastify";
+import cookie from "@fastify/cookie";
+import rateLimit from "@fastify/rate-limit";
+import jwt from "jsonwebtoken";
+import prisma from "../config/database";
+import { config } from "../config/env";
+import ordersRoutes from "../routes/admin/orders";
+import {
+  createOrder,
+  listOrders,
+  getOrder,
+  getOrderAttachment,
+} from "../services/orders.service";
+
+const createdOrderIds: number[] = [];
+const createdCustomerIds: number[] = [];
+
+afterEach(async () => {
+  for (const id of createdOrderIds)
+    await prisma.orders.deleteMany({ where: { id } });
+  for (const id of createdCustomerIds)
+    await prisma.customers.deleteMany({ where: { id } });
+  createdOrderIds.length = 0;
+  createdCustomerIds.length = 0;
+  await prisma.number_sequences.deleteMany({ where: { type: "shared" } });
+});
+
+const baseOrder = {
+  status: "prijata" as const,
+  currency: "CZK",
+  language: "cs",
+  exchange_rate: 1,
+};
+
+function failResult(res: unknown): never {
+  throw new Error(`expected a success result, got ${JSON.stringify(res)}`);
+}
+
+async function makeCustomer() {
+  const c = await prisma.customers.create({
+    data: { name: "Odběratel a.s." },
+  });
+  createdCustomerIds.push(c.id);
+  return c;
+}
+
+const baseListParams = {
+  page: 1,
+  limit: 50,
+  skip: 0,
+  sort: "id",
+  order: "desc" as const,
+};
+
+describe("listOrders search filter", () => {
+  it("returns the order when search matches its order_number", async () => {
+    const customer = await makeCustomer();
+    const res = await createOrder({
+      ...baseOrder,
+      customer_id: customer.id,
+      create_project: false,
+    });
+    if (!("id" in res)) failResult(res);
+    createdOrderIds.push(res.id!);
+
+    const list = await listOrders({
+      ...baseListParams,
+      search: res.order_number!,
+    });
+    expect(list.data.map((o) => o.id)).toContain(res.id);
+  });
+
+  it("excludes the order when search matches nothing", async () => {
+    const customer = await makeCustomer();
+    const res = await createOrder({
+      ...baseOrder,
+      customer_id: customer.id,
+      create_project: false,
+    });
+    if (!("id" in res)) failResult(res);
+    createdOrderIds.push(res.id!);
+
+    const list = await listOrders({
+      ...baseListParams,
+      search: "ZZZ-NO-SUCH-ORDER-ZZZ",
+    });
+    expect(list.data.map((o) => o.id)).not.toContain(res.id);
+  });
+});
+
+describe("order attachment payload hygiene", () => {
+  // The PO attachment blob must be served ONLY by GET /:id/attachment —
+  // list/detail payloads carry attachment_name as the existence signal.
+  const PDF_BYTES = Buffer.from("%PDF-1.4 orders-list-test-attachment-bytes");
+  const TEST_ADMIN = "orders_list_test_admin";
+
+  let app: Awaited<ReturnType<typeof buildOrdersApp>>;
+  let adminToken: string;
+  let adminUserId: number;
+
+  async function buildOrdersApp() {
+    const fastify = Fastify({ logger: false });
+    await fastify.register(cookie);
+    await fastify.register(rateLimit, { max: 1000, timeWindow: "1 minute" });
+    // multipart is registered inside ordersRoutes itself
+    await fastify.register(ordersRoutes, { prefix: "/api/admin/orders" });
+    return fastify;
+  }
+
+  beforeAll(async () => {
+    app = await buildOrdersApp();
+
+    // Clean up any leftover test user from a previous failed run
+    await prisma.users.deleteMany({ where: { username: TEST_ADMIN } });
+
+    const adminRole = await prisma.roles.findFirst({
+      where: { name: "admin" },
+    });
+    if (!adminRole)
+      throw new Error("Admin role not found — seed the database first");
+
+    const adminUser = await prisma.users.create({
+      data: {
+        username: TEST_ADMIN,
+        email: `${TEST_ADMIN}@test.local`,
+        password_hash:
+          "$2a$12$LJ3m4ys3Lg4oLBFnYP2amuPBzJnJBbGzCl5Y6X9Y8r0q5.s3L6OyO",
+        first_name: "Orders",
+        last_name: "ListTest",
+        is_active: true,
+        role_id: adminRole.id,
+      },
+    });
+    adminUserId = adminUser.id;
+    adminToken = jwt.sign(
+      { sub: adminUser.id, username: adminUser.username, role: "admin" },
+      config.jwt.secret,
+      { expiresIn: "15m" },
+    );
+  });
+
+  afterAll(async () => {
+    await prisma.users.deleteMany({ where: { id: adminUserId } });
+    await app.close();
+  });
+
+  /** One order WITH a stored PO attachment, one WITHOUT. */
+  async function makeOrderPair() {
+    const customer = await makeCustomer();
+    const withRes = await createOrder(
+      { ...baseOrder, customer_id: customer.id, create_project: false },
+      PDF_BYTES,
+      "po-test.pdf",
+    );
+    if (!("id" in withRes)) failResult(withRes);
+    createdOrderIds.push(withRes.id!);
+
+    const withoutRes = await createOrder({
+      ...baseOrder,
+      customer_id: customer.id,
+      create_project: false,
+    });
+    if (!("id" in withoutRes)) failResult(withoutRes);
+    createdOrderIds.push(withoutRes.id!);
+
+    return { withId: withRes.id!, withoutId: withoutRes.id! };
+  }
+
+  it("listOrders rows never contain attachment_data; attachment_name signals existence", async () => {
+    const { withId, withoutId } = await makeOrderPair();
+
+    const list = await listOrders(baseListParams);
+    const withRow = list.data.find((o) => o.id === withId);
+    const withoutRow = list.data.find((o) => o.id === withoutId);
+    expect(withRow).toBeTruthy();
+    expect(withoutRow).toBeTruthy();
+
+    expect("attachment_data" in withRow!).toBe(false);
+    expect("attachment_data" in withoutRow!).toBe(false);
+    expect(withRow!.attachment_name).toBe("po-test.pdf");
+    expect(withoutRow!.attachment_name).toBeNull();
+  });
+
+  it("getOrder detail never contains attachment_data but keeps attachment_name", async () => {
+    const { withId, withoutId } = await makeOrderPair();
+
+    const withDetail = await getOrder(withId);
+    const withoutDetail = await getOrder(withoutId);
+    expect(withDetail).toBeTruthy();
+    expect(withoutDetail).toBeTruthy();
+
+    expect("attachment_data" in withDetail!).toBe(false);
+    expect("attachment_data" in withoutDetail!).toBe(false);
+    expect(withDetail!.attachment_name).toBe("po-test.pdf");
+    expect(withoutDetail!.attachment_name).toBeNull();
+  });
+
+  it("HTTP list/detail JSON carries no attachment_data; /attachment still serves the binary", async () => {
+    const { withId, withoutId } = await makeOrderPair();
+    const headers = { authorization: `Bearer ${adminToken}` };
+
+    const listRes = await app.inject({
+      method: "GET",
+      url: "/api/admin/orders?sort=id&order=desc&per_page=100",
+      headers,
+    });
+    expect(listRes.statusCode).toBe(200);
+    const listJson = JSON.parse(listRes.body);
+    expect(listJson.data.map((o: { id: number }) => o.id)).toContain(withId);
+    expect(listRes.body).not.toContain("attachment_data");
+
+    const detailRes = await app.inject({
+      method: "GET",
+      url: `/api/admin/orders/${withId}`,
+      headers,
+    });
+    expect(detailRes.statusCode).toBe(200);
+    expect(detailRes.body).not.toContain("attachment_data");
+    expect(JSON.parse(detailRes.body).data.attachment_name).toBe("po-test.pdf");
+
+    // The dedicated endpoint is the ONE place the blob is served — byte-exact.
+    const attRes = await app.inject({
+      method: "GET",
+      url: `/api/admin/orders/${withId}/attachment`,
+      headers,
+    });
+    expect(attRes.statusCode).toBe(200);
+    expect(attRes.headers["content-type"]).toContain("application/pdf");
+    expect(Buffer.from(attRes.rawPayload).equals(PDF_BYTES)).toBe(true);
+
+    const noAttRes = await app.inject({
+      method: "GET",
+      url: `/api/admin/orders/${withoutId}/attachment`,
+      headers,
+    });
+    expect(noAttRes.statusCode).toBe(404);
+  });
+
+  it("getOrderAttachment round-trips the stored bytes (and null without one)", async () => {
+    const { withId, withoutId } = await makeOrderPair();
+
+    const att = await getOrderAttachment(withId);
+    expect(att).toBeTruthy();
+    expect(att!.filename).toBe("po-test.pdf");
+    expect(att!.data.equals(PDF_BYTES)).toBe(true);
+
+    expect(await getOrderAttachment(withoutId)).toBeNull();
+  });
+});
+
+describe("listOrders month filter", () => {
+  it("returns only orders whose created_at is in the given month", async () => {
+    const customer = await makeCustomer();
+    const res = await createOrder({
+      ...baseOrder,
+      customer_id: customer.id,
+      create_project: false,
+    });
+    if (!("id" in res)) failResult(res);
+    createdOrderIds.push(res.id!);
+
+    // Pin created_at to a known month so the range filter is deterministic.
+    await prisma.orders.update({
+      where: { id: res.id },
+      data: { created_at: new Date(2026, 2, 15, 12, 0, 0) },
+    });
+
+    const inMonth = await listOrders({
+      ...baseListParams,
+      month: 3,
+      year: 2026,
+    });
+    expect(inMonth.data.map((o) => o.id)).toContain(res.id);
+
+    const otherMonth = await listOrders({
+      ...baseListParams,
+      month: 4,
+      year: 2026,
+    });
+    expect(otherMonth.data.map((o) => o.id)).not.toContain(res.id);
+  });
+});

src/__tests__/pagination-tiebreak.test.ts

@@ -0,0 +1,126 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import Fastify from "fastify";
+import jwt from "jsonwebtoken";
+import prisma from "../config/database";
+import { config } from "../config/env";
+import customersRoutes from "../routes/admin/customers";
+import receivedInvoicesRoutes from "../routes/admin/received-invoices";
+
+/**
+ * Pinning tests for audit finding L3: offset pagination over a non-unique
+ * sort column needs an `{ id }` tiebreak, or rows sharing the sort value can
+ * reorder between page queries — duplicating one row and skipping another.
+ * (Documented determinism convention; siblings issued-orders/trips already
+ * use compound orderings.)
+ *
+ * NOTE: without the tiebreak the misbehavior is probabilistic (MySQL may
+ * return a stable order by luck), so the paging assertion is primarily a
+ * REGRESSION GUARD pinning the exactly-once contract.
+ */
+
+const N = "tiebreak_test_";
+
+let app: ReturnType<typeof Fastify>;
+let adminToken: string;
+let customerIds: number[] = [];
+let invoiceIds: number[] = [];
+
+async function cleanup() {
+  await prisma.customers.deleteMany({ where: { name: { startsWith: N } } });
+  await prisma.received_invoices.deleteMany({
+    where: { supplier_name: { startsWith: N } },
+  });
+}
+
+beforeAll(async () => {
+  await cleanup();
+
+  app = Fastify({ logger: false });
+  await app.register(customersRoutes, { prefix: "/api/admin/customers" });
+  await app.register(receivedInvoicesRoutes, {
+    prefix: "/api/admin/received-invoices",
+  });
+
+  const admin = await prisma.users.findFirst({
+    where: { roles: { name: "admin" } },
+  });
+  if (!admin) throw new Error("Test setup: admin user not found");
+  adminToken = jwt.sign(
+    { sub: admin.id, username: admin.username, role: "admin" },
+    config.jwt.secret,
+    { expiresIn: "15m" },
+  );
+
+  // 5 customers sharing one city (the sort key) so every page boundary
+  // falls inside a duplicate-key run.
+  customerIds = [];
+  for (let i = 0; i < 5; i++) {
+    const c = await prisma.customers.create({
+      data: { name: `${N}c${i}`, city: "Tiebreakov" },
+    });
+    customerIds.push(c.id);
+  }
+
+  // 5 received invoices sharing supplier_name in one far-future month.
+  invoiceIds = [];
+  for (let i = 0; i < 5; i++) {
+    const inv = await prisma.received_invoices.create({
+      data: {
+        supplier_name: `${N}supplier`,
+        month: 7,
+        year: 2098,
+        amount: 100 + i,
+        currency: "CZK",
+        vat_rate: 21,
+        vat_amount: 17.36,
+        status: "unpaid",
+      },
+    });
+    invoiceIds.push(inv.id);
+  }
+});
+
+afterAll(async () => {
+  if (app) await app.close();
+  await cleanup();
+  await prisma.$disconnect();
+});
+
+async function collectPages(urlBase: string, pages: number) {
+  const seen: number[] = [];
+  for (let page = 1; page <= pages; page++) {
+    const res = await app.inject({
+      method: "GET",
+      url: `${urlBase}&page=${page}&limit=2`,
+      headers: { Authorization: `Bearer ${adminToken}` },
+    });
+    expect(res.statusCode).toBe(200);
+    for (const row of res.json().data as Array<{ id: number }>) {
+      seen.push(row.id);
+    }
+  }
+  return seen;
+}
+
+describe("offset pagination exactly-once (audit L3)", () => {
+  it("customers sorted by a duplicate city appear exactly once across pages", async () => {
+    const seen = (
+      await collectPages("/api/admin/customers?sort=city&search=" + N, 3)
+    ).filter((id) => customerIds.includes(id));
+
+    expect([...new Set(seen)].sort()).toEqual([...customerIds].sort());
+    expect(seen.length).toBe(customerIds.length);
+  });
+
+  it("received invoices sorted by a duplicate supplier appear exactly once across pages", async () => {
+    const seen = (
+      await collectPages(
+        "/api/admin/received-invoices?sort=supplier_name&month=7&year=2098",
+        3,
+      )
+    ).filter((id) => invoiceIds.includes(id));
+
+    expect([...new Set(seen)].sort()).toEqual([...invoiceIds].sort());
+    expect(seen.length).toBe(invoiceIds.length);
+  });
+});

src/__tests__/pdf-no-vat.test.ts

@@ -0,0 +1,247 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import Fastify from "fastify";
+import jwt from "jsonwebtoken";
+import prisma from "../config/database";
+import { config } from "../config/env";
+import { renderOrderConfirmationHtml } from "../routes/admin/orders-pdf";
+import offersPdfRoutes from "../routes/admin/offers-pdf";
+import invoicesPdfRoutes from "../routes/admin/invoices-pdf";
+import { createInvoice } from "../services/invoices.service";
+
+// Offers, received orders (their confirmation PDF) and issued orders are NOT
+// tax documents — VAT must never appear on them. These tests pin that contract
+// for the confirmation and offer PDFs: no VAT columns/rows/notices, and the
+// grand total is "Celkem bez DPH" / "Total excl. VAT". (The issued-order PDF
+// is covered in issued-orders.test.ts.)
+
+// The explanatory prices-excl.-VAT notice was removed at user request — the
+// total label alone carries the information. Pin its absence too.
+const CS_NOTE = "Ceny jsou uvedeny bez DPH";
+const EN_NOTE = "Prices are exclusive of VAT";
+
+describe("renderOrderConfirmationHtml (order confirmation PDF)", () => {
+  const order = {
+    order_number: "26730042",
+    customer_order_number: "PO-XYZ",
+    created_at: new Date("2026-06-09T12:00:00"),
+    currency: "CZK",
+    notes: null,
+    customers: null,
+  };
+  const items = [
+    {
+      description: "Materiál",
+      quantity: 2,
+      unit: "ks",
+      unit_price: 100,
+      is_included_in_total: true,
+    },
+  ];
+
+  it("cs: NET total labeled 'Celkem bez DPH', no VAT columns or notice", () => {
+    const html = renderOrderConfirmationHtml(order, items, null, "cs", "Jan");
+    expect(html).not.toContain("%DPH");
+    expect(html).not.toContain(">DPH<");
+    expect(html).not.toContain("Mezisoučet");
+    // Line total = netto (2 × 100), no VAT-on-top anywhere.
+    expect(html).toContain('<td class="right total-cell">200,00</td>');
+    expect(html).toContain("Celkem bez DPH");
+    expect(html).not.toContain(CS_NOTE);
+  });
+
+  it("en: 'Total excl. VAT', no VAT columns or notice", () => {
+    const html = renderOrderConfirmationHtml(order, items, null, "en", "Jan");
+    expect(html).not.toContain("VAT%");
+    expect(html).toContain("Total excl. VAT");
+    expect(html).not.toContain(EN_NOTE);
+  });
+
+  it("excludes not-included lines from the NET total", () => {
+    const html = renderOrderConfirmationHtml(
+      order,
+      [
+        ...items,
+        {
+          description: "Mimo cenu",
+          quantity: 1,
+          unit: "ks",
+          unit_price: 999,
+          is_included_in_total: false,
+        },
+      ],
+      null,
+      "cs",
+      "Jan",
+    );
+    // Grand total stays 200,00 — the excluded line doesn't count.
+    expect(html).toContain("200,00 CZK");
+  });
+
+  it("uses the shared NBSP-thousands formatter (pdf-shared extraction marker)", () => {
+    const html = renderOrderConfirmationHtml(
+      order,
+      [
+        {
+          description: "Velká položka",
+          quantity: 2,
+          unit: "ks",
+          unit_price: 1000,
+          is_included_in_total: true,
+        },
+      ],
+      null,
+      "cs",
+      "Jan",
+    );
+    // 2 × 1000 = 2 000,00 with the NBSP (U+00A0) thousands separator.
+    expect(html).toContain("2 000,00 CZK");
+    expect(html).not.toContain("1 199,00 CZK");
+  });
+});
+
+/* -------------------------------------------------------------------------- */
+/* Offer PDF route (returns the HTML for the print view)                      */
+/* -------------------------------------------------------------------------- */
+
+let app: ReturnType<typeof Fastify> | null = null;
+let adminToken = "";
+const createdQuotationIds: number[] = [];
+const createdInvoiceIds: number[] = [];
+
+beforeAll(async () => {
+  app = Fastify({ logger: false });
+  await app.register(offersPdfRoutes, { prefix: "/api/admin/offers-pdf" });
+  await app.register(invoicesPdfRoutes, { prefix: "/api/admin/invoices-pdf" });
+
+  const admin = await prisma.users.findFirst({
+    where: { roles: { name: "admin" } },
+  });
+  if (!admin) throw new Error("Test setup: admin user not found");
+  adminToken = jwt.sign(
+    { sub: admin.id, username: admin.username, role: "admin" },
+    config.jwt.secret,
+    { expiresIn: "15m" },
+  );
+});
+
+afterAll(async () => {
+  for (const id of createdQuotationIds)
+    await prisma.quotations.deleteMany({ where: { id } });
+  for (const id of createdInvoiceIds)
+    await prisma.invoices.deleteMany({ where: { id } });
+  if (app) await app.close();
+});
+
+describe("GET /api/admin/offers-pdf/:id (offer PDF html)", () => {
+  it("renders NET-only totals with 'Celkem bez DPH', no notice", async () => {
+    // Direct prisma insert (explicit number → no sequence consumed).
+    const quotation = await prisma.quotations.create({
+      data: {
+        quotation_number: `Q-VATNOTE-${Date.now()}`,
+        status: "active",
+        currency: "CZK",
+        language: "cs",
+        quotation_items: {
+          create: [
+            {
+              description: "Položka",
+              quantity: 2,
+              unit: "ks",
+              unit_price: 1000,
+              is_included_in_total: true,
+              position: 0,
+            },
+          ],
+        },
+      },
+    });
+    createdQuotationIds.push(quotation.id);
+
+    const res = await app!.inject({
+      method: "GET",
+      url: `/api/admin/offers-pdf/${quotation.id}`,
+      headers: { Authorization: `Bearer ${adminToken}` },
+    });
+    expect(res.statusCode).toBe(200);
+    const html = res.body;
+    expect(html).toContain("Celkem bez DPH");
+    expect(html).not.toContain(CS_NOTE);
+    expect(html).not.toContain("%DPH");
+    expect(html).not.toContain("Mezisoučet");
+    expect(html).not.toContain("Celkem k úhradě");
+  });
+
+  it("renders a fractional quantity as '1,50', not rounded to '2'", async () => {
+    const quotation = await prisma.quotations.create({
+      data: {
+        quotation_number: `Q-FRACQTY-${Date.now()}`,
+        status: "active",
+        currency: "CZK",
+        language: "cs",
+        quotation_items: {
+          create: [
+            {
+              description: "Půldenní sazba",
+              quantity: 1.5,
+              unit: "ks",
+              unit_price: 1000,
+              is_included_in_total: true,
+              position: 0,
+            },
+          ],
+        },
+      },
+    });
+    createdQuotationIds.push(quotation.id);
+
+    const res = await app!.inject({
+      method: "GET",
+      url: `/api/admin/offers-pdf/${quotation.id}`,
+      headers: { Authorization: `Bearer ${adminToken}` },
+    });
+    expect(res.statusCode).toBe(200);
+    const html = res.body;
+    // The old toFixed(0) ROUNDED 1.5 → "2"; integers still render without
+    // decimals elsewhere (covered by the previous test's qty 2).
+    expect(html).toContain("1,50 / ks");
+    expect(html).not.toContain(">2 / ks<");
+  });
+});
+
+/* -------------------------------------------------------------------------- */
+/* Invoice PDF route — post-pdf-shared-extraction render marker               */
+/* -------------------------------------------------------------------------- */
+
+describe("GET /api/admin/invoices-pdf/:id (invoice PDF html)", () => {
+  it("still renders the invoice HTML after the shared-helper extraction", async () => {
+    // Draft → no number consumed; CZK → no CNB exchange-rate lookup.
+    const invoice = await createInvoice({
+      status: "draft",
+      currency: "CZK",
+      apply_vat: true,
+      vat_rate: 21,
+      items: [
+        {
+          description: "PDF-SHARED-MARKER",
+          quantity: 2,
+          unit_price: 1000,
+          vat_rate: 21,
+        },
+      ],
+    });
+    createdInvoiceIds.push(invoice.id);
+
+    const res = await app!.inject({
+      method: "GET",
+      url: `/api/admin/invoices-pdf/${invoice.id}`,
+      headers: { Authorization: `Bearer ${adminToken}` },
+    });
+    expect(res.statusCode).toBe(200);
+    const html = res.body;
+    expect(html).toContain("FAKTURA - DAŇOVÝ DOKLAD");
+    expect(html).toContain("PDF-SHARED-MARKER");
+    // Shared NBSP formatNum: 2 × 1000 = 2 000,00 base.
+    expect(html).toContain("2 000,00");
+    expect(html).toContain("Celkem k úhradě");
+  });
+});

src/__tests__/pdf-shared.test.ts

@@ -0,0 +1,55 @@
+import { describe, it, expect } from "vitest";
+import { cleanQuillHtml } from "../utils/pdf-shared";
+
+describe("cleanQuillHtml — inline-style whitelist", () => {
+  it("keeps Quill text and background colors", () => {
+    const html =
+      '<p><span style="color: rgb(230, 0, 0);">červeně</span> ' +
+      '<span style="background-color: #ffff00;">zvýrazněně</span> ' +
+      '<span style="color: #06c;">modře</span></p>';
+    const out = cleanQuillHtml(html);
+    expect(out).toContain('style="color: rgb(230, 0, 0)"');
+    expect(out).toContain('style="background-color: #ffff00"');
+    expect(out).toContain('style="color: #06c"');
+  });
+
+  it("drops every non-color style declaration", () => {
+    const out = cleanQuillHtml(
+      '<span style="position: fixed; color: red; font-size: 99px;">x</span>',
+    );
+    expect(out).toBe('<span style="color: red">x</span>');
+  });
+
+  it("drops unsafe color values (url, expression, quotes)", () => {
+    expect(
+      cleanQuillHtml('<span style="color: url(javascript:alert(1))">x</span>'),
+    ).toBe("<span>x</span>");
+    expect(
+      cleanQuillHtml('<span style="color: expression(alert(1))">x</span>'),
+    ).toBe("<span>x</span>");
+    expect(cleanQuillHtml("<span style='color: \"red\"'>x</span>")).toBe(
+      "<span>x</span>",
+    );
+  });
+
+  it("restores Quill 2's empty <p></p> blank lines to <p><br></p>", () => {
+    // Quill 2's semantic HTML drops the <br> placeholder from blank lines.
+    expect(cleanQuillHtml("<p>A</p><p></p><p>B</p>")).toBe(
+      "<p>A</p><p><br></p><p>B</p>",
+    );
+    // Attribute-carrying and whitespace-only empties too.
+    expect(cleanQuillHtml('<p class="ql-align-center"> </p>')).toBe(
+      '<p class="ql-align-center"><br></p>',
+    );
+  });
+
+  it("keeps stripping scripts, event handlers and js: URLs", () => {
+    const out = cleanQuillHtml(
+      '<p onclick="alert(1)"><script>alert(1)</script>' +
+        '<a href="javascript:alert(1)">x</a></p>',
+    );
+    expect(out).not.toContain("script");
+    expect(out).not.toContain("onclick");
+    expect(out).not.toContain("javascript:");
+  });
+});

src/__tests__/plan-update-cap.test.ts

@@ -0,0 +1,106 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import prisma from "../config/database";
+import { updateEntry } from "../services/plan.service";
+
+/**
+ * Pinning tests for audit finding M9: updateEntry must re-check the per-cell
+ * cap (MAX_RECORDS_PER_CELL = 3) when the date range changes — expanding an
+ * entry onto a day that already holds 3 active entries used to succeed,
+ * producing a 4th that the grid (capped at 3) silently hides.
+ *
+ * The re-check must EXCLUDE the updated entry itself, so editing an at-cap
+ * entry without moving it stays allowed.
+ */
+
+const NOTE = "plan_updcap_test";
+
+let userId: number;
+let cappedEntryIds: number[] = [];
+let fourthId: number;
+
+const D = (day: number) => new Date(Date.UTC(2099, 6, day)); // July 2099, UTC
+
+async function cleanup() {
+  await prisma.work_plan_entries.deleteMany({ where: { note: NOTE } });
+}
+
+beforeAll(async () => {
+  await cleanup();
+  const user = await prisma.users.findFirst({ select: { id: true } });
+  if (!user) throw new Error("Test setup: no users — seed the database");
+  userId = user.id;
+
+  cappedEntryIds = [];
+  for (let i = 0; i < 3; i++) {
+    const entry = await prisma.work_plan_entries.create({
+      data: {
+        user_id: userId,
+        date_from: D(1),
+        date_to: D(1),
+        category: "work",
+        note: NOTE,
+        created_by: userId,
+      },
+    });
+    cappedEntryIds.push(entry.id);
+  }
+  const fourth = await prisma.work_plan_entries.create({
+    data: {
+      user_id: userId,
+      date_from: D(2),
+      date_to: D(2),
+      category: "work",
+      note: NOTE,
+      created_by: userId,
+    },
+  });
+  fourthId = fourth.id;
+});
+
+afterAll(async () => {
+  await cleanup();
+  await prisma.$disconnect();
+});
+
+describe("updateEntry per-cell cap (audit M9)", () => {
+  it("rejects expanding an entry onto a day already at the cap", async () => {
+    const result = await updateEntry(
+      fourthId,
+      { date_from: "2099-07-01", date_to: "2099-07-01" },
+      userId,
+      false,
+    );
+
+    expect("error" in result).toBe(true);
+    if ("error" in result) expect(result.status).toBe(400);
+
+    // The entry must not have moved.
+    const fresh = await prisma.work_plan_entries.findUnique({
+      where: { id: fourthId },
+    });
+    expect(fresh?.date_from.toISOString().slice(0, 10)).toBe("2099-07-02");
+  });
+
+  it("still allows editing an at-cap entry without moving it (self-exclusion)", async () => {
+    const result = await updateEntry(
+      cappedEntryIds[0],
+      { date_from: "2099-07-01", date_to: "2099-07-01", note: NOTE },
+      userId,
+      false,
+    );
+    expect("error" in result).toBe(false);
+  });
+
+  it("still allows a note-only edit and a move to a free day", async () => {
+    const noteOnly = await updateEntry(fourthId, { note: NOTE }, userId, false);
+    expect("error" in noteOnly).toBe(false);
+
+    const move = await updateEntry(
+      fourthId,
+      { date_from: "2099-07-03", date_to: "2099-07-03" },
+      userId,
+      false,
+    );
+    expect("error" in move).toBe(false);
+  });
+});

src/__tests__/plan.test.ts

@@ -7,6 +7,7 @@ import prisma from "../config/database";
 import { config } from "../config/env";
 import { securityHeaders } from "../middleware/security";
 import planRoutes from "../routes/admin/plan";
+import { localDateStr } from "../utils/date";
 import {
   resolveCell,
   resolveGrid,
@@ -31,6 +32,14 @@ import {
 const N = "wh_plan_";
 
 let adminUserId: number;
+// A DEDICATED, distinct non-admin user for the service-level employee-scoping
+// tests (and as the second employee in the multi-user bulk test). Creating our
+// own user — instead of grabbing "the second user in the DB" — guarantees it is
+// never accidentally the admin (which would make `toEqual([])` pass for the
+// wrong reason on a single-user DB), and that it is genuinely distinct so the
+// 2-employee aggregate assertion can't collapse to 1.
+let scopeUserId: number;
+let scopeRoleId: number;
 let noPermUserId: number;
 
 beforeAll(async () => {
@@ -43,11 +52,44 @@ beforeAll(async () => {
   if (!admin) throw new Error("Test setup: admin user not found");
   adminUserId = admin.id;
 
-  // For list-scoping tests: any non-admin user that is NOT the admin we use
+  // Dedicated non-admin user + role for scoping/multi-user tests.
-  // for create tests. Just pick the second user.
+  const stamp = Date.now();
-  const allUsers = await prisma.users.findMany({ take: 2 });
+  const role = await prisma.roles.create({
-  noPermUserId =
+    data: {
-    allUsers.find((u) => u.id !== adminUserId)?.id ?? allUsers[0].id;
+      name: `scope_plan_${stamp}`,
+      display_name: "Plan Scope Test",
+    },
+  });
+  scopeRoleId = role.id;
+  const user = await prisma.users.create({
+    data: {
+      username: `scope_plan_${stamp}`,
+      first_name: "Scope",
+      last_name: "User",
+      email: `scope_plan_${stamp}@test.local`,
+      password_hash:
+        "$2a$10$invalidinvalidinvalidinvalidinvalidinvalidinvalidinvali",
+      role_id: role.id,
+      is_active: true,
+    },
+  });
+  scopeUserId = user.id;
+  if (scopeUserId === adminUserId)
+    throw new Error("scope user must be distinct from admin");
+});
+
+afterAll(async () => {
+  // Clean up the dedicated scope user/role created above. Wrapped in catch so a
+  // leftover FK (none expected — its rows are note-prefixed and removed) can't
+  // mask real failures.
+  if (scopeUserId)
+    await prisma.users
+      .deleteMany({ where: { id: scopeUserId } })
+      .catch(() => {});
+  if (scopeRoleId)
+    await prisma.roles
+      .deleteMany({ where: { id: scopeRoleId } })
+      .catch(() => {});
 });
 
 beforeEach(async () => {
@@ -355,6 +397,24 @@ describe("plan.service.assertNotPastDate", () => {
     const result = assertNotPastDate("2000-01-01", true);
     expect(result).toBeNull();
   });
+
+  it("treats TODAY (local Prague date) as allowed — the boundary is inclusive", () => {
+    // Deterministic without mocking the clock: compute "today" exactly the way
+    // the service does (local-time YYYY-MM-DD; TZ is pinned to Europe/Prague in
+    // config/env.ts). The boundary is the bug-prone path — an off-by-one here
+    // would wrongly reject editing today's plan.
+    const today = localDateStr(new Date());
+    expect(assertNotPastDate(today, false)).toBeNull();
+  });
+
+  it("rejects YESTERDAY (local Prague date) as a past date", () => {
+    const d = new Date();
+    d.setDate(d.getDate() - 1); // local-time yesterday
+    const yesterday = localDateStr(d);
+    const result = assertNotPastDate(yesterday, false);
+    expect(result).not.toBeNull();
+    expect(result?.status).toBe(403);
+  });
 });
 
 // ---------------------------------------------------------------------------
@@ -521,7 +581,7 @@ describe("plan.service.updateEntry", () => {
     );
     expect("data" in updated).toBe(true);
     if ("data" in updated) {
-      expect(updated.data.note).toBe(`${N}updated`);
+      expect((updated.data as any).note).toBe(`${N}updated`);
       expect((updated.oldData as any).note).toBe(`${N}original`);
     }
   });
@@ -686,7 +746,7 @@ describe("plan.service.updateOverride", () => {
     );
     expect("data" in updated).toBe(true);
     if ("data" in updated) {
-      expect(updated.data.note).toBe(`${N}updated`);
+      expect((updated.data as any).note).toBe(`${N}updated`);
       expect((updated.oldData as any).note).toBe(`${N}original`);
     }
   });
@@ -761,9 +821,13 @@ describe("plan.service.listEntries (employee scoping)", () => {
     );
     const rows = await listEntries(
       { user_id: adminUserId, date_from: "2098-02-01", date_to: "2098-02-28" },
-      noPermUserId,
+      scopeUserId, // dedicated distinct non-admin actor (never the admin)
       false, // not admin
     );
+    // A non-admin actor querying ANOTHER user's data is scoped to its own
+    // user_id, so it sees none of the admin's entries. This can only be
+    // [] for the right reason because scopeUserId !== adminUserId (asserted
+    // in beforeAll).
     expect(rows).toEqual([]);
   });
 });
@@ -782,7 +846,7 @@ describe("plan.service.listOverrides (employee scoping)", () => {
     );
     const rows = await listOverrides(
       { user_id: adminUserId, date_from: "2098-03-01", date_to: "2098-03-31" },
-      noPermUserId,
+      scopeUserId, // dedicated distinct non-admin actor (never the admin)
       false,
     );
     expect(rows).toEqual([]);
@@ -875,9 +939,11 @@ describe("plan.service.bulkCreateEntries", () => {
   });
 
   it("aggregates across multiple employees", async () => {
+    // Two genuinely distinct employees (admin + the dedicated scope user) so
+    // `users` can't collapse to 1 if the DB happened to have a single user.
     const res = await bulkCreateEntries(
       {
-        user_ids: [adminUserId, noPermUserId],
+        user_ids: [adminUserId, scopeUserId],
         date_from: "2096-08-03", // Friday
         date_to: "2096-08-03",
         include_weekends: true,

src/__tests__/planCategory.test.ts

@@ -1,4 +1,4 @@
-import { describe, it, expect, afterAll } from "vitest";
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
 import prisma from "../config/database";
 import {
   listPlanCategories,
@@ -12,10 +12,28 @@ import {
 
 const created: number[] = [];
 
+// Every test category's slug starts with "test_" AND contains "_zz" (labels all
+// read "Test … ZZ"). Cleaning by this pattern — not just by in-memory ids —
+// means a previous crashed run can't leave a `test_kategorie_zz` row behind that
+// makes the dedupe test wrongly assert `_3`/`_4` instead of `_2`. The narrow
+// pattern avoids touching real seed categories (work/other/…).
+async function cleanupByPrefix() {
+  await prisma.plan_categories.deleteMany({
+    where: { key: { startsWith: "test_", contains: "_zz" } },
+  });
+}
+
+beforeAll(async () => {
+  await cleanupByPrefix();
+});
+
 afterAll(async () => {
   if (created.length) {
     await prisma.plan_categories.deleteMany({ where: { id: { in: created } } });
   }
+  // Belt-and-suspenders: also remove anything matching the slug prefix in case
+  // a test threw before pushing its id into `created`.
+  await cleanupByPrefix();
   await prisma.$disconnect();
 });
 
@@ -24,6 +42,13 @@ describe("slugifyCategory", () => {
     expect(slugifyCategory("Cesta / Montáž")).toBe("cesta_montaz");
     expect(slugifyCategory("Příprava")).toBe("priprava");
   });
+
+  it("collapses an all-symbol label to an empty slug", () => {
+    // No alphanumerics survive → empty string. createPlanCategory's uniqueKey
+    // then falls back to "kategorie" so the row is still creatable.
+    expect(slugifyCategory("***")).toBe("");
+    expect(slugifyCategory("  /  ")).toBe("");
+  });
 });
 
 describe("plan category service", () => {

src/__tests__/project-notes.test.ts

@@ -0,0 +1,227 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import Fastify from "fastify";
+import cookie from "@fastify/cookie";
+import rateLimit from "@fastify/rate-limit";
+import jwt from "jsonwebtoken";
+import prisma from "../config/database";
+import { config } from "../config/env";
+import { securityHeaders } from "../middleware/security";
+import projectsRoutes from "../routes/admin/projects";
+
+// ---------------------------------------------------------------------------
+// Project notes: author-only editing with a visible edited_at stamp, and
+// admin-only deletion (a projects.edit holder may add + edit their own notes
+// but never delete — user decision 2026-06-12).
+// ---------------------------------------------------------------------------
+
+const N = "projnotes_test_";
+
+let app: Awaited<ReturnType<typeof buildApp>>;
+let adminToken: string;
+let userAId: number;
+let userAToken: string;
+let userBToken: string;
+let roleId: number;
+let projectId: number;
+let noteId: number;
+
+async function buildApp() {
+  const a = Fastify({ logger: false });
+  await a.register(cookie);
+  await a.register(rateLimit, { max: 1000, timeWindow: "1 minute" });
+  a.addHook("onRequest", securityHeaders);
+  await a.register(projectsRoutes, { prefix: "/api/admin/projects" });
+  return a;
+}
+
+function generateToken(user: {
+  id: number;
+  username: string;
+  roleName: string | null;
+}): string {
+  return jwt.sign(
+    { sub: user.id, username: user.username, role: user.roleName },
+    config.jwt.secret,
+    { expiresIn: "15m" },
+  );
+}
+
+function inject(
+  method: "POST" | "PUT" | "DELETE",
+  path: string,
+  token: string,
+  body?: unknown,
+) {
+  return app.inject({
+    method,
+    url: path,
+    headers: {
+      Authorization: `Bearer ${token}`,
+      // Content-Type only with a body — Fastify 400s an empty JSON body.
+      ...(body !== undefined ? { "Content-Type": "application/json" } : {}),
+    },
+    ...(body !== undefined ? { payload: body as object } : {}),
+  });
+}
+
+beforeAll(async () => {
+  app = await buildApp();
+
+  // Defensive pre-clean of a previously failed run.
+  await prisma.project_notes.deleteMany({
+    where: { content: { contains: N } },
+  });
+  await prisma.projects.deleteMany({ where: { name: { startsWith: N } } });
+  await prisma.users.deleteMany({ where: { username: { startsWith: N } } });
+  await prisma.roles.deleteMany({ where: { name: `${N}role` } });
+
+  const admin = await prisma.users.findFirst({
+    where: { roles: { name: "admin" } },
+    include: { roles: true },
+  });
+  if (!admin) throw new Error("Test setup: admin user not found");
+  adminToken = generateToken({
+    id: admin.id,
+    username: admin.username,
+    roleName: admin.roles?.name ?? null,
+  });
+
+  // Non-admin role with projects.view + projects.edit.
+  const role = await prisma.roles.create({
+    data: { name: `${N}role`, display_name: "ProjNotes test role" },
+  });
+  roleId = role.id;
+  const perms = await prisma.permissions.findMany({
+    where: { name: { in: ["projects.view", "projects.edit"] } },
+    select: { id: true },
+  });
+  if (perms.length !== 2) {
+    throw new Error("Test setup: projects.view/projects.edit missing");
+  }
+  await prisma.role_permissions.createMany({
+    data: perms.map((p) => ({ role_id: roleId, permission_id: p.id })),
+  });
+
+  const mkUser = async (suffix: string) =>
+    prisma.users.create({
+      data: {
+        username: `${N}${suffix}`,
+        email: `${N}${suffix}@test.local`,
+        password_hash: "x",
+        first_name: "Projnotes",
+        last_name: suffix.toUpperCase(),
+        is_active: true,
+        role_id: roleId,
+      },
+    });
+  const userA = await mkUser("a");
+  const userB = await mkUser("b");
+  userAId = userA.id;
+  userAToken = generateToken({
+    id: userA.id,
+    username: userA.username,
+    roleName: `${N}role`,
+  });
+  userBToken = generateToken({
+    id: userB.id,
+    username: userB.username,
+    roleName: `${N}role`,
+  });
+
+  const project = await prisma.projects.create({
+    data: { name: `${N}project`, status: "aktivni" },
+  });
+  projectId = project.id;
+
+  // Note authored by user A (through the route, like the UI does).
+  const res = await inject(
+    "POST",
+    `/api/admin/projects/${projectId}/notes`,
+    userAToken,
+    { content: `${N}original` },
+  );
+  expect(res.statusCode).toBe(201);
+  noteId = res.json().data.note.id;
+});
+
+afterAll(async () => {
+  await prisma.project_notes.deleteMany({ where: { project_id: projectId } });
+  await prisma.projects.deleteMany({ where: { id: projectId } });
+  await prisma.users.deleteMany({ where: { username: { startsWith: N } } });
+  await prisma.roles.deleteMany({ where: { id: roleId } });
+  await app.close();
+});
+
+describe("project notes — author-only edit with edited_at stamp", () => {
+  it("the author edits their own note and the edit is stamped", async () => {
+    const res = await inject(
+      "PUT",
+      `/api/admin/projects/${projectId}/notes/${noteId}`,
+      userAToken,
+      { content: `${N}edited` },
+    );
+    expect(res.statusCode).toBe(200);
+    const row = await prisma.project_notes.findUnique({
+      where: { id: noteId },
+    });
+    expect(row?.content).toBe(`${N}edited`);
+    expect(row?.user_id).toBe(userAId);
+    expect(row?.edited_at).not.toBeNull();
+  });
+
+  it("another user cannot edit someone else's note", async () => {
+    const res = await inject(
+      "PUT",
+      `/api/admin/projects/${projectId}/notes/${noteId}`,
+      userBToken,
+      { content: `${N}hijack` },
+    );
+    expect(res.statusCode).toBe(403);
+    const row = await prisma.project_notes.findUnique({
+      where: { id: noteId },
+    });
+    expect(row?.content).toBe(`${N}edited`); // unchanged
+  });
+
+  it("rejects empty content and unknown note ids", async () => {
+    const empty = await inject(
+      "PUT",
+      `/api/admin/projects/${projectId}/notes/${noteId}`,
+      userAToken,
+      { content: "   " },
+    );
+    expect(empty.statusCode).toBe(400);
+
+    const missing = await inject(
+      "PUT",
+      `/api/admin/projects/${projectId}/notes/999999999`,
+      userAToken,
+      { content: "x" },
+    );
+    expect(missing.statusCode).toBe(404);
+  });
+});
+
+describe("project notes — admin-only deletion", () => {
+  it("a projects.edit holder cannot delete (even their own note)", async () => {
+    const res = await inject(
+      "DELETE",
+      `/api/admin/projects/${projectId}/notes/${noteId}`,
+      userAToken,
+    );
+    expect(res.statusCode).toBe(403);
+  });
+
+  it("an admin deletes anybody's note", async () => {
+    const res = await inject(
+      "DELETE",
+      `/api/admin/projects/${projectId}/notes/${noteId}`,
+      adminToken,
+    );
+    expect(res.statusCode).toBe(200);
+    const row = await prisma.project_notes.findUnique({
+      where: { id: noteId },
+    });
+    expect(row).toBeNull();
+  });
+});

src/__tests__/projects-update-fk.test.ts

@@ -0,0 +1,76 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import prisma from "../config/database";
+import { updateProject } from "../services/projects.service";
+
+/**
+ * Pinning tests for audit finding M6: updateProject must pre-validate FK ids
+ * (customer_id, responsible_user_id, quotation_id, order_id) and return clean
+ * Czech 400s like createProject does — a dangling id otherwise raises P2003
+ * at Prisma and surfaces as a generic 500.
+ */
+
+const N = "prj_fk_";
+
+let projectId: number;
+
+async function cleanup() {
+  await prisma.projects.deleteMany({ where: { name: { startsWith: N } } });
+}
+
+beforeAll(async () => {
+  await cleanup();
+  const project = await prisma.projects.create({
+    data: { name: `${N}project`, status: "active" },
+  });
+  projectId = project.id;
+});
+
+afterAll(async () => {
+  await cleanup();
+  await prisma.$disconnect();
+});
+
+function isError(r: unknown): r is { error: string; status: number } {
+  return typeof r === "object" && r !== null && "error" in r;
+}
+
+describe("updateProject FK existence checks (audit M6)", () => {
+  it.each([
+    ["customer_id", "Zákazník nenalezen"],
+    ["responsible_user_id", "Zodpovědná osoba nenalezena"],
+    ["quotation_id", "Nabídka nenalezena"],
+    ["order_id", "Zakázka nenalezena"],
+  ])("returns a Czech 400 for a dangling %s", async (field, message) => {
+    const result = await updateProject(projectId, { [field]: 99999999 });
+
+    expect(isError(result)).toBe(true);
+    if (isError(result)) {
+      expect(result.status).toBe(400);
+      expect(result.error).toBe(message);
+    }
+
+    // Nothing was written.
+    const fresh = await prisma.projects.findUnique({
+      where: { id: projectId },
+    });
+    expect(fresh?.[field as "customer_id"]).toBeNull();
+  });
+
+  it("still allows clearing an FK with null", async () => {
+    const result = await updateProject(projectId, { customer_id: null });
+    expect(isError(result)).toBe(false);
+  });
+
+  it("still allows setting a valid FK", async () => {
+    const user = await prisma.users.findFirst({ select: { id: true } });
+    expect(user).not.toBeNull();
+    const result = await updateProject(projectId, {
+      responsible_user_id: user!.id,
+    });
+    expect(isError(result)).toBe(false);
+    const fresh = await prisma.projects.findUnique({
+      where: { id: projectId },
+    });
+    expect(fresh?.responsible_user_id).toBe(user!.id);
+  });
+});

src/__tests__/received-invoice-dates.test.ts

@@ -0,0 +1,115 @@
+import { describe, it, expect, beforeAll, afterAll } from "vitest";
+import { z } from "zod";
+import Fastify from "fastify";
+import jwt from "jsonwebtoken";
+import prisma from "../config/database";
+import { config } from "../config/env";
+import receivedInvoicesRoutes from "../routes/admin/received-invoices";
+import { CreateReceivedInvoiceSchema } from "../schemas/received-invoices.schema";
+
+/**
+ * Pinning tests for audit finding H5: Czech-format dates in the received-
+ * invoice upload metadata must be rejected with a clean Czech 400 BEFORE any
+ * NAS side effect — "15.03.2026" used to parse to Invalid Date (NaN
+ * month/year written after the NAS save → 500 + orphaned file) and
+ * "12.6.2026" silently filed under December (US month-first parsing).
+ */
+
+let app: ReturnType<typeof Fastify>;
+let adminToken: string;
+
+beforeAll(async () => {
+  app = Fastify({ logger: false });
+  await app.register(receivedInvoicesRoutes, {
+    prefix: "/api/admin/received-invoices",
+  });
+
+  const admin = await prisma.users.findFirst({
+    where: { roles: { name: "admin" } },
+  });
+  if (!admin) throw new Error("Test setup: admin user not found");
+  adminToken = jwt.sign(
+    { sub: admin.id, username: admin.username, role: "admin" },
+    config.jwt.secret,
+    { expiresIn: "15m" },
+  );
+});
+
+afterAll(async () => {
+  if (app) await app.close();
+  await prisma.$disconnect();
+});
+
+function multipartUpload(meta: Record<string, unknown>) {
+  const boundary = "----vitestboundary";
+  const payload = [
+    `--${boundary}`,
+    'Content-Disposition: form-data; name="invoices"',
+    "",
+    JSON.stringify([meta]),
+    `--${boundary}`,
+    'Content-Disposition: form-data; name="files"; filename="test.pdf"',
+    "Content-Type: application/pdf",
+    "",
+    "%PDF-1.4 test",
+    `--${boundary}--`,
+    "",
+  ].join("\r\n");
+  return app.inject({
+    method: "POST",
+    url: "/api/admin/received-invoices",
+    headers: {
+      Authorization: `Bearer ${adminToken}`,
+      "content-type": `multipart/form-data; boundary=${boundary}`,
+    },
+    payload,
+  });
+}
+
+describe("received-invoice date handling (audit H5)", () => {
+  const partialSchema = z.array(CreateReceivedInvoiceSchema.partial());
+
+  it("schema rejects Czech-format dates", () => {
+    expect(
+      partialSchema.safeParse([{ issue_date: "15.03.2026" }]).success,
+    ).toBe(false);
+    expect(partialSchema.safeParse([{ issue_date: "12.6.2026" }]).success).toBe(
+      false,
+    );
+  });
+
+  it("schema strips a trailing time part and normalizes '' to null", () => {
+    const withTime = partialSchema.safeParse([
+      { issue_date: "2098-05-03T00:00:00" },
+    ]);
+    expect(withTime.success).toBe(true);
+    if (withTime.success)
+      expect(withTime.data[0].issue_date).toBe("2098-05-03");
+
+    const empty = partialSchema.safeParse([{ issue_date: "" }]);
+    expect(empty.success).toBe(true);
+    if (empty.success) expect(empty.data[0].issue_date).toBeNull();
+  });
+
+  it("upload with a Czech-format issue_date returns 400 before any NAS write", async () => {
+    const res = await multipartUpload({
+      supplier_name: "Test s.r.o.",
+      amount: 121,
+      vat_rate: 21,
+      issue_date: "15.03.2026",
+    });
+    expect(res.statusCode).toBe(400);
+    expect(res.json().error).toContain("Datum");
+  });
+
+  it("upload with an impossible regex-passing date returns 400, not NaN month", async () => {
+    const res = await multipartUpload({
+      supplier_name: "Test s.r.o.",
+      amount: 121,
+      vat_rate: 21,
+      issue_date: "2098-99-99",
+    });
+    expect(res.statusCode).toBe(400);
+    expect(res.json().error).toContain("datum");
+  });
+});

src/__tests__/received-invoices-vat.test.ts

@@ -0,0 +1,51 @@
+import { describe, it, expect } from "vitest";
+import { vatFromGross } from "../routes/admin/received-invoices";
+
+// `amount` on a received invoice is the GROSS total (VAT included). The VAT is
+// the portion contained within it: gross * rate / (100 + rate).
+describe("vatFromGross (VAT contained in a gross total)", () => {
+  it("derives VAT from a real gross total at 21%", () => {
+    // 22 542,91 @ 21% → 3 912,41 (base 18 630,50). User-confirmed figures.
+    expect(vatFromGross(22542.91, 21)).toBeCloseTo(3912.41, 2);
+    expect(22542.91 - vatFromGross(22542.91, 21)).toBeCloseTo(18630.5, 2);
+  });
+
+  it("derives VAT at other rates", () => {
+    expect(vatFromGross(1210, 21)).toBeCloseTo(210, 2); // base 1000
+    expect(vatFromGross(1100, 10)).toBeCloseTo(100, 2); // base 1000
+    expect(vatFromGross(1150, 15)).toBeCloseTo(150, 2); // base 1000
+  });
+
+  it("returns 0 when there is no VAT", () => {
+    expect(vatFromGross(5000, 0)).toBe(0);
+  });
+
+  it("returns 0 for a zero amount", () => {
+    expect(vatFromGross(0, 21)).toBe(0);
+  });
+
+  it("rounds the cent UP when the raw VAT's third decimal forces a carry", () => {
+    // 115.50 @ 21% -> raw 20.045454...  the third decimal (5) rounds the cent
+    // up to 20.05. Pinned EXACTLY (not toBeCloseTo) so a truncate-instead-of-
+    // round regression (which would yield 20.04) fails.
+    expect(vatFromGross(115.5, 21)).toBe(20.05);
+    // 95.70 @ 21% -> raw 16.609090...  rounds up to 16.61.
+    expect(vatFromGross(95.7, 21)).toBe(16.61);
+  });
+
+  it("rounds the cent DOWN when below the half-cent", () => {
+    // 100.40 @ 21% -> raw 17.424793...  rounds down to 17.42.
+    expect(vatFromGross(100.4, 21)).toBe(17.42);
+  });
+
+  it("pins the result to the exact stored 2-dp value (not just close)", () => {
+    // The DB column is Decimal(_, 2). vatFromGross must already return a value
+    // with no third-decimal float drift. Strict equality + a 2-dp self-check,
+    // NOT toBeCloseTo, so a 3-dp regression (e.g. 210.0000001) would fail.
+    const v = vatFromGross(1210, 21);
+    expect(v).toBe(210); // exact, not ~210
+    expect(v).toBe(Math.round(v * 100) / 100); // genuinely 2-dp clean
+    // The real-world figure too: pinned exactly, replacing the toBeCloseTo above.
+    expect(vatFromGross(22542.91, 21)).toBe(3912.41);
+  });
+});

src/__tests__/schema-caps.test.ts

@@ -0,0 +1,394 @@
+import { describe, it, expect } from "vitest";
+import type { z } from "zod";
+import {
+  CreateOrderSchema,
+  UpdateOrderSchema,
+  CreateOrderFromQuotationSchema,
+} from "../schemas/orders.schema";
+import {
+  CreateInvoiceSchema,
+  UpdateInvoiceSchema,
+} from "../schemas/invoices.schema";
+import { CreateTripSchema, UpdateTripSchema } from "../schemas/trips.schema";
+import { TotpEnableSchema } from "../schemas/auth.schema";
+import {
+  CreateReceivedInvoiceSchema,
+  UpdateReceivedInvoiceSchema,
+} from "../schemas/received-invoices.schema";
+import {
+  CreateSupplierSchema,
+  UpdateSupplierSchema,
+} from "../schemas/warehouse.schema";
+import {
+  CreateCustomerSchema,
+  UpdateCustomerSchema,
+} from "../schemas/customers.schema";
+
+/**
+ * Pinning tests for the Zod-cap-vs-DB-column class (audit H2, M2, M4, M11,
+ * L1, L8d, L8e + adjacent invoice item/bank caps): every form-facing string
+ * cap must fit its DB column width, or an over-width value passes Zod and
+ * dies at Prisma as a 500 (P2000) instead of a clean Czech 400.
+ *
+ * Each case asserts BOTH directions: width+1 chars must FAIL the schema, and
+ * exactly width chars must PASS (guards against over-tightening — stored
+ * values can never exceed the column width, so re-submitted edit forms stay
+ * valid).
+ */
+
+interface CapCase {
+  name: string;
+  schema: z.ZodTypeAny;
+  /** DB column width from prisma/schema.prisma */
+  width: number;
+  build: (value: string) => unknown;
+}
+
+const tripBase = {
+  vehicle_id: 1,
+  trip_date: "2098-03-02",
+  start_km: 0,
+  end_km: 1,
+  route_from: "A",
+  route_to: "B",
+};
+const receivedBase = { supplier_name: "X", month: 6, year: 2026 };
+
+const CASES: CapCase[] = [
+  // ── orders.schema.ts vs order_items / orders ──
+  {
+    name: "CreateOrderSchema items.description",
+    schema: CreateOrderSchema,
+    width: 500,
+    build: (v) => ({ items: [{ description: v }] }),
+  },
+  {
+    name: "CreateOrderSchema items.unit",
+    schema: CreateOrderSchema,
+    width: 20,
+    build: (v) => ({ items: [{ unit: v }] }),
+  },
+  {
+    name: "CreateOrderSchema order_number",
+    schema: CreateOrderSchema,
+    width: 50,
+    build: (v) => ({ order_number: v }),
+  },
+  {
+    name: "CreateOrderSchema customer_order_number",
+    schema: CreateOrderSchema,
+    width: 100,
+    build: (v) => ({ customer_order_number: v }),
+  },
+  {
+    name: "CreateOrderSchema currency",
+    schema: CreateOrderSchema,
+    width: 10,
+    build: (v) => ({ currency: v }),
+  },
+  {
+    name: "CreateOrderSchema language",
+    schema: CreateOrderSchema,
+    width: 5,
+    build: (v) => ({ language: v }),
+  },
+  {
+    name: "UpdateOrderSchema customer_order_number",
+    schema: UpdateOrderSchema,
+    width: 100,
+    build: (v) => ({ customer_order_number: v }),
+  },
+  {
+    name: "UpdateOrderSchema currency",
+    schema: UpdateOrderSchema,
+    width: 10,
+    build: (v) => ({ currency: v }),
+  },
+  {
+    name: "UpdateOrderSchema language",
+    schema: UpdateOrderSchema,
+    width: 5,
+    build: (v) => ({ language: v }),
+  },
+  {
+    name: "CreateOrderFromQuotationSchema customerOrderNumber",
+    schema: CreateOrderFromQuotationSchema,
+    width: 100,
+    build: (v) => ({ quotationId: 1, customerOrderNumber: v }),
+  },
+  // ── invoices.schema.ts vs invoice_items / invoices ──
+  {
+    name: "CreateInvoiceSchema items.description",
+    schema: CreateInvoiceSchema,
+    width: 500,
+    build: (v) => ({ items: [{ description: v }] }),
+  },
+  {
+    name: "CreateInvoiceSchema items.unit",
+    schema: CreateInvoiceSchema,
+    width: 20,
+    build: (v) => ({ items: [{ unit: v }] }),
+  },
+  {
+    name: "CreateInvoiceSchema invoice_number",
+    schema: CreateInvoiceSchema,
+    width: 50,
+    build: (v) => ({ invoice_number: v }),
+  },
+  {
+    name: "CreateInvoiceSchema currency",
+    schema: CreateInvoiceSchema,
+    width: 10,
+    build: (v) => ({ currency: v }),
+  },
+  {
+    name: "CreateInvoiceSchema language",
+    schema: CreateInvoiceSchema,
+    width: 5,
+    build: (v) => ({ language: v }),
+  },
+  {
+    name: "CreateInvoiceSchema payment_method",
+    schema: CreateInvoiceSchema,
+    width: 50,
+    build: (v) => ({ payment_method: v }),
+  },
+  {
+    name: "CreateInvoiceSchema constant_symbol",
+    schema: CreateInvoiceSchema,
+    width: 20,
+    build: (v) => ({ constant_symbol: v }),
+  },
+  {
+    name: "CreateInvoiceSchema bank_swift",
+    schema: CreateInvoiceSchema,
+    width: 20,
+    build: (v) => ({ bank_swift: v }),
+  },
+  {
+    name: "CreateInvoiceSchema bank_iban",
+    schema: CreateInvoiceSchema,
+    width: 50,
+    build: (v) => ({ bank_iban: v }),
+  },
+  {
+    name: "CreateInvoiceSchema bank_account",
+    schema: CreateInvoiceSchema,
+    width: 50,
+    build: (v) => ({ bank_account: v }),
+  },
+  {
+    name: "CreateInvoiceSchema billing_text",
+    schema: CreateInvoiceSchema,
+    width: 500,
+    build: (v) => ({ billing_text: v }),
+  },
+  {
+    name: "UpdateInvoiceSchema currency",
+    schema: UpdateInvoiceSchema,
+    width: 10,
+    build: (v) => ({ currency: v }),
+  },
+  {
+    name: "UpdateInvoiceSchema language",
+    schema: UpdateInvoiceSchema,
+    width: 5,
+    build: (v) => ({ language: v }),
+  },
+  {
+    name: "UpdateInvoiceSchema payment_method",
+    schema: UpdateInvoiceSchema,
+    width: 50,
+    build: (v) => ({ payment_method: v }),
+  },
+  {
+    name: "UpdateInvoiceSchema constant_symbol",
+    schema: UpdateInvoiceSchema,
+    width: 20,
+    build: (v) => ({ constant_symbol: v }),
+  },
+  {
+    name: "UpdateInvoiceSchema bank_swift",
+    schema: UpdateInvoiceSchema,
+    width: 20,
+    build: (v) => ({ bank_swift: v }),
+  },
+  {
+    name: "UpdateInvoiceSchema bank_iban",
+    schema: UpdateInvoiceSchema,
+    width: 50,
+    build: (v) => ({ bank_iban: v }),
+  },
+  {
+    name: "UpdateInvoiceSchema bank_account",
+    schema: UpdateInvoiceSchema,
+    width: 50,
+    build: (v) => ({ bank_account: v }),
+  },
+  {
+    name: "UpdateInvoiceSchema billing_text",
+    schema: UpdateInvoiceSchema,
+    width: 500,
+    build: (v) => ({ billing_text: v }),
+  },
+  // ── trips.schema.ts vs trips ──
+  {
+    name: "CreateTripSchema route_from",
+    schema: CreateTripSchema,
+    width: 100,
+    build: (v) => ({ ...tripBase, route_from: v }),
+  },
+  {
+    name: "CreateTripSchema route_to",
+    schema: CreateTripSchema,
+    width: 100,
+    build: (v) => ({ ...tripBase, route_to: v }),
+  },
+  {
+    name: "UpdateTripSchema route_from",
+    schema: UpdateTripSchema,
+    width: 100,
+    build: (v) => ({ route_from: v }),
+  },
+  {
+    name: "UpdateTripSchema route_to",
+    schema: UpdateTripSchema,
+    width: 100,
+    build: (v) => ({ route_to: v }),
+  },
+  // ── auth.schema.ts vs users.totp_secret ──
+  // The stored value is AES-256-GCM ciphertext (base64(IV+ct+tag)) of the
+  // plaintext secret in a VarChar(255) column: a plaintext over ~164 chars
+  // overflows after encryption. Real TOTP secrets are 16-32 chars; cap 64.
+  {
+    name: "TotpEnableSchema secret",
+    schema: TotpEnableSchema,
+    width: 64,
+    build: (v) => ({ secret: v, code: "123456" }),
+  },
+  // ── received-invoices.schema.ts vs received_invoices ──
+  {
+    name: "CreateReceivedInvoiceSchema description",
+    schema: CreateReceivedInvoiceSchema,
+    width: 500,
+    build: (v) => ({ ...receivedBase, description: v }),
+  },
+  {
+    name: "CreateReceivedInvoiceSchema invoice_number",
+    schema: CreateReceivedInvoiceSchema,
+    width: 100,
+    build: (v) => ({ ...receivedBase, invoice_number: v }),
+  },
+  {
+    name: "CreateReceivedInvoiceSchema currency",
+    schema: CreateReceivedInvoiceSchema,
+    width: 3,
+    build: (v) => ({ ...receivedBase, currency: v }),
+  },
+  {
+    name: "UpdateReceivedInvoiceSchema description",
+    schema: UpdateReceivedInvoiceSchema,
+    width: 500,
+    build: (v) => ({ description: v }),
+  },
+  {
+    name: "UpdateReceivedInvoiceSchema invoice_number",
+    schema: UpdateReceivedInvoiceSchema,
+    width: 100,
+    build: (v) => ({ invoice_number: v }),
+  },
+  {
+    name: "UpdateReceivedInvoiceSchema currency",
+    schema: UpdateReceivedInvoiceSchema,
+    width: 3,
+    build: (v) => ({ currency: v }),
+  },
+  // ── warehouse.schema.ts (suppliers) vs sklad_suppliers ──
+  {
+    name: "CreateSupplierSchema ico",
+    schema: CreateSupplierSchema,
+    width: 20,
+    build: (v) => ({ name: "X", ico: v }),
+  },
+  {
+    name: "CreateSupplierSchema dic",
+    schema: CreateSupplierSchema,
+    width: 20,
+    build: (v) => ({ name: "X", dic: v }),
+  },
+  {
+    name: "UpdateSupplierSchema ico",
+    schema: UpdateSupplierSchema,
+    width: 20,
+    build: (v) => ({ ico: v }),
+  },
+  {
+    name: "UpdateSupplierSchema dic",
+    schema: UpdateSupplierSchema,
+    width: 20,
+    build: (v) => ({ dic: v }),
+  },
+  // ── customers.schema.ts vs customers ──
+  {
+    name: "CreateCustomerSchema company_id",
+    schema: CreateCustomerSchema,
+    width: 50,
+    build: (v) => ({ name: "X", company_id: v }),
+  },
+  {
+    name: "CreateCustomerSchema vat_id",
+    schema: CreateCustomerSchema,
+    width: 50,
+    build: (v) => ({ name: "X", vat_id: v }),
+  },
+  {
+    name: "CreateCustomerSchema postal_code",
+    schema: CreateCustomerSchema,
+    width: 20,
+    build: (v) => ({ name: "X", postal_code: v }),
+  },
+  {
+    name: "CreateCustomerSchema country",
+    schema: CreateCustomerSchema,
+    width: 100,
+    build: (v) => ({ name: "X", country: v }),
+  },
+  {
+    name: "UpdateCustomerSchema company_id",
+    schema: UpdateCustomerSchema,
+    width: 50,
+    build: (v) => ({ company_id: v }),
+  },
+  {
+    name: "UpdateCustomerSchema vat_id",
+    schema: UpdateCustomerSchema,
+    width: 50,
+    build: (v) => ({ vat_id: v }),
+  },
+  {
+    name: "UpdateCustomerSchema postal_code",
+    schema: UpdateCustomerSchema,
+    width: 20,
+    build: (v) => ({ postal_code: v }),
+  },
+  {
+    name: "UpdateCustomerSchema country",
+    schema: UpdateCustomerSchema,
+    width: 100,
+    build: (v) => ({ country: v }),
+  },
+];
+
+describe("Zod caps fit DB column widths (audit H2/M2/M4/M11/L1/L8d/L8e + adjacent)", () => {
+  for (const c of CASES) {
+    it(`${c.name} rejects ${c.width + 1} chars`, () => {
+      const result = c.schema.safeParse(c.build("x".repeat(c.width + 1)));
+      expect(result.success).toBe(false);
+    });
+
+    it(`${c.name} accepts ${c.width} chars`, () => {
+      const result = c.schema.safeParse(c.build("x".repeat(c.width)));
+      expect(result.success).toBe(true);
+    });
+  }
+});