Remove single-thread getChatHistory/appendChatMessages/clearChatHistory and the
three /history routes; add listConversations, createConversation, getConversation-
Messages, appendConversationMessages, renameConversation, deleteConversation with
ownership checks and auto-title; wire six /conversations[/:id] routes.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
The amount on a received invoice is the GROSS total the user pays (VAT
included), and VAT is the portion contained within it — not a net base with
VAT added on top. Switch the formula from amount*rate/100 to the
VAT-inclusive amount*rate/(100+rate) via a shared, tested vatFromGross()
helper used by both the create (manual upload + AI import share this
endpoint) and edit paths. Rate 0 → no VAT.
- AI extraction now asks Claude for the total INCLUDING VAT (was "základ bez
DPH"), reinforced in the structured-output schema description.
- Label the amount field "Částka s DPH" in the AI review card and the manual
upload/edit forms so the gross convention is explicit.
- Add unit tests with the user-confirmed figures (22 542,91 @ 21% → 3 912,41,
base 18 630,50) plus other rates and the no-VAT case.
Existing rows keep their stored (gross) amounts; their vat_amount recomputes
on next edit. A one-shot backfill can correct historical vat_amount if wanted.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Server-side, per-user chat history (the thread now survives reload):
- new ai_chat_messages table + migration; getChatHistory/appendChatMessages/
clearChatHistory; GET/POST/DELETE /api/admin/ai/history (ai.use-guarded);
service + HTTP tests (isolation, ordering, clear, perm, validation).
- DashAssistant loads the thread on mount and persists each turn; "Vymazat"
clears it. gcTime:0 so each mount re-reads the DB (no stale-cache resurrection);
composer gated until history settles + seed flag flipped on submit (no
seed/submit race clobbering a freshly-sent turn).
UX + correctness fixes from review/feedback:
- review cards moved OUT of the scrollable thread into a "Faktury k potvrzení"
section so Uložit is always reachable; chat auto-scroll no longer fires on
field edits.
- chat bubble text colour set on the Typography (GlobalStyles pins `p` to
text.secondary, which was overriding the inherited bubble colour → unreadable).
- never clear input/staged PDFs on a failed submit (rollback + keep), so a
budget error can't wipe staged invoices; roll back the optimistic user turn.
- stable attachment ids (no crypto.randomUUID — undefined over plain HTTP).
- editable Datum splatnosti + Popis fields; client-side extraction summary.
Security: DashProfile clipboard copy now uses an execCommand fallback (works
over plain HTTP) and only shows the success toast when the copy actually
succeeded — previously it falsely claimed to copy 2FA codes / the TOTP secret.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
