fix: audit fix pass #1 — all 19 verified HIGH findings + critical dep cleanup

Fixes every CRITICAL/HIGH finding from the 2026-06-09 full-codebase audit
(REVIEW_FINDINGS.md); each fix went through independent spec + code-quality
review. Plan and per-task log: docs/superpowers/plans/2026-06-10-audit-high-fix-pass.md

- attendance: schemas accept the combined local datetimes the forms/service
  use (new dateTimeString helpers in schemas/common.ts), breaks persist on
  create, AttendanceCreate submit rebuilt — every submit 400'd since 519edce
- 2fa: backup codes wired to /totp/backup-verify (+ remember-me parity),
  enrollment QR generated locally via qrcode (CSP-blocked external service
  also leaked the secret), dashboard shows per-user enrollment, not policy
- invoices/orders: per-line VAT survives re-saves (numberOr 0-respecting
  coercion in formatters.ts), billing_text persists on update, issued-order
  status transitions update UI gates
- trips: real pagination on all 3 pages, GET /trips/stats server aggregate
  (shared buildTripsWhere + legacy distance coalesce), vehicle_id applies on
  PUT with both-vehicle odometer recompute, print rebuilt (sync window.open,
  escaped template, server totals)
- orders api: attachment_data PDF blob excluded from all non-binary reads
- warehouse: unit field is a Select over UnitEnum, receipt attachments
  downloadable via new authenticated GET route
- downloads: shared RFC 5987 contentDisposition helper — Czech filenames no
  longer 500 (warehouse, received-invoices, orders endpoints)
- misc: block-env hook actually blocks (exit 2 + stderr), project create
  works with empty dates, NaN filter guards on trips endpoints
- deps: remove unused concurrently (clears both critical advisories), pin
  @hono/node-server >=1.19.13 via overrides (clears the 3 moderates without
  the Prisma 6 downgrade), drop deprecated @types stubs

Gates: tsc -b clean - vitest 30 files / 342 tests (31 new) - eslint 0 errors
- build OK

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

src/services/orders.service.ts

@@ -72,6 +72,10 @@ async function syncProjectStatus(
   });
 }
 
+// ⚠ Also called by getOrderTotals with a MINIMAL select (currency, apply_vat,
+// vat_rate, item quantity/unit_price/is_included_in_total). If you read a NEW
+// order/item field here, add it to that select — a field missing from the
+// select is silently 0 in the per-currency totals.
 function enrichOrder(o: any) {
   const subtotal = o.order_items
     .filter((i: any) => i.is_included_in_total !== false)
@@ -158,6 +162,11 @@ export async function listOrders(params: ListOrdersParams) {
       take: limit,
       // Tiebreak on id so same-second created_at rows sort deterministically.
       orderBy: [{ [sortField]: order }, { id: order }],
+      // The PO attachment blob is served ONLY by GET /:id/attachment. Never
+      // pull it into list payloads — a single 1MB PDF would serialize into
+      // megabytes of JSON per row. attachment_name stays as the existence
+      // signal the frontend uses.
+      omit: { attachment_data: true },
       include: {
         customers: { select: { id: true, name: true } },
         order_items: { orderBy: { position: "asc" } },
@@ -193,17 +202,21 @@ export async function getOrderTotals(
 ): Promise<{ totals: CurrencyAmount[] }> {
   const where = buildOrderWhere(params);
 
+  // Select ONLY what the math needs (currency + VAT flags + item numbers).
+  // This runs over the WHOLE filtered set, so pulling attachment blobs,
+  // sections HTML or relations here would multiply the query size for nothing.
   const orders = await prisma.orders.findMany({
     where,
-    include: {
-      customers: { select: { id: true, name: true } },
-      order_items: { orderBy: { position: "asc" } },
-      order_sections: { orderBy: { position: "asc" } },
-      quotations: { select: { quotation_number: true, project_code: true } },
-      invoices: {
-        select: { id: true, invoice_number: true },
-        take: 1,
-        orderBy: { id: "desc" },
+    select: {
+      currency: true,
+      apply_vat: true,
+      vat_rate: true,
+      order_items: {
+        select: {
+          quantity: true,
+          unit_price: true,
+          is_included_in_total: true,
+        },
       },
     },
   });
@@ -228,6 +241,9 @@ export async function getOrderTotals(
 export async function getOrder(id: number) {
   const order = await prisma.orders.findUnique({
     where: { id },
+    // The blob belongs only to GET /:id/attachment — the detail payload
+    // carries attachment_name as the existence signal.
+    omit: { attachment_data: true },
     include: {
       customers: true,
       order_items: { orderBy: { position: "asc" } },
@@ -567,7 +583,11 @@ interface UpdateOrderData {
 }
 
 export async function updateOrder(id: number, body: UpdateOrderData) {
-  const existing = await prisma.orders.findUnique({ where: { id } });
+  // Pre-read only the fields the guards below check — never the PDF blob.
+  const existing = await prisma.orders.findUnique({
+    where: { id },
+    select: { status: true, order_number: true },
+  });
   if (!existing)
     return { error: "Objednávka nenalezena", status: 404 } as const;
 
@@ -680,7 +700,11 @@ export async function updateOrder(id: number, body: UpdateOrderData) {
 }
 
 export async function deleteOrder(id: number, deleteFiles = false) {
-  const existing = await prisma.orders.findUnique({ where: { id } });
+  // Pre-read only what the delete needs (number release + year) — not the blob.
+  const existing = await prisma.orders.findUnique({
+    where: { id },
+    select: { order_number: true, created_at: true },
+  });
   if (!existing)
     return { error: "Objednávka nenalezena", status: 404 } as const;