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feat(shift): site-wide single-open shift + booth money-path gate

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A shift becomes a SITE-WIDE accountability period — at most one open at a
time — so every taking is unambiguously attributed to one operator. Login
stays decoupled from shifts (an operator can log in off-shift to review).

Backend:
- ShiftService.currentOpenShift()/requireOpenShift(); open() refuses when ANY
  shift is open and throws ShiftAlreadyOpenError{heldBy} (self vs. other).
- requireShift preHandler gates /api/pay, /api/exit, /api/voucher,
  /api/barrier/reopen → 409 {code:"no_shift"}; read-only lookups stay open.
- GET /api/shift/current returns site-wide {open:{startedAt,operator},isMine}.
- GET /api/events?since=<iso> for per-shift log scoping (db: re-export gte).

Frontend:
- Header shift button: open / close-mine / disabled-when-another-holds-it.
- Pay/exit modal gate banner (one-click open; "held by X" when another's);
  pay/exit/voucher disabled until this operator's shift is open.
- Active-Sessions barrier re-open gated the same way.
- Live feed scoped to the open shift's window; shared useShift() Query
  invalidated over the WS on shift_open/shift_z_report/cash_movement.
- sq/en strings for the control + gate.

Wiki: shift.md (site-wide single-open + gate; superseded per-operator note),
booth-console.md (header control + gate), log entry.

Verified: site-wide invariant + heldBy + handover + chain integrity on a
fresh migrated DB (11/11); db/server/web build clean.
This commit is contained in:
Julian Çuni
2026-06-18 12:13:17 +02:00
parent 48660d3ec8
commit 4e2e4feedb
19 changed files with 415 additions and 42 deletions
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wiki/log.md
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@@ -796,3 +796,7 @@ Two languages via react-i18next, Albanian default/fallback. Language is a per-us
## [2026-06-18] lint | Reconcile wiki with the session's work
Audited wiki vs. the session: three major builds (live WebSocket, frontend foundation, i18n) had NO log entry and NO concept page. Filed [[i18n]] (resolved a dangling code-comment link) and [[booth-console]] (operator-UI architecture: stack, /api/ws live feed, anti-CSWSH, booth screen). Updated stale [[react-vite-spa]] (the "plain React, no framework" claim is now qualified). Backfilled the three missing build log entries. Standing gaps flagged across pages: NO automated tests (front or back); ATECC608 not yet wired (software-HMAC signing is tamper-evident, not tamper-proof); pre-existing admin screens not on the terminal theme.
## [2026-06-18] ingest | Shift gating — site-wide single-open, booth money-path gate, per-shift logs
Built the shift-enforcement model. A shift is now **site-wide single-open** (was per-operator): `ShiftService.currentOpenShift()` reads the most recent shift event on the whole chain; `open()` refuses if ANY shift is open and throws `ShiftAlreadyOpenError{heldBy}`. Login stays decoupled from shifts (operator can log in off-shift to review). The booth money path is **gated**: `/api/pay`, `/api/exit`, `/api/voucher`, `/api/barrier/reopen` get a `requireShift` preHandler → 409 `{code:"no_shift"}`; read-only lookups stay open so the modal can display + prompt. `GET /api/shift/current` now returns the site-wide `{open:{startedAt,operator},isMine}`. Logs are **per-shift** via `GET /api/events?since=<shiftStart>`. UI: header shift button (open / close-mine / disabled-when-other), pay-modal gate banner with one-click open, gated Active-Sessions re-open, shift-scoped live feed; shared `useShift()` Query invalidated by the WS on shift/cash events. Updated [[shift]] (new "Site-wide single-open + booth gate" section; superseded the per-operator as-built note) and [[booth-console]] (header control + gate). Verified the invariant + chain integrity on a fresh migrated DB (11/11 assertions). Builds clean across db/server/web.