docs(wiki): reconcile with session — booth console, i18n, live WS

File concept pages for the operator-UI architecture ([[booth-console]]: stack,
/api/ws live feed, anti-CSWSH) and [[i18n]] (per-user server-stored language;
resolves a dangling code-comment link). Qualify the stale 'plain React' note on
react-vite-spa. Backfill log entries for the live WebSocket, frontend foundation,
and i18n builds (which had none), plus a reconciliation lint entry. Catalog
booth-exit-flow + the two new pages in index; fix the concept count (27→41).

wiki/log.md

@@ -780,3 +780,19 @@ Operator escape hatch for stuck cars (damaged ticket / dead scanner / phantom ba
 ## [2026-06-18] build | Drawer balance — opening float carry-over + admin cash movements
 
 Cash drawer that carries across shifts. New signed `cash_movement` ledger event type (shared); admin-only POST /api/cash-movement {amountMinor signed +load/-remove, reason}. ShiftService: #drawerBalanceAt(time) folds cash payments + cash_movements BY TIME (not operator — the movement is the admin's); open() auto-inherits openingFloat = drawerBalanceAt(start) and records it on shift_open; close() Z-report adds openingFloat/cashAdded/cashRemoved/expectedDrawer (= opening + taken + added − removed = next shift's opening float). Card payments excluded (settle to bank). GET /api/shift/current returns live drawerMinor. Frontend: ShiftControl shows live drawer + admin Load/Remove form + full Z-report drawer block (admin gate via router context). Verified the canonical scenario on a FRESH DB: load 5000 → shift1 takes 6500 → expected 11500 → shift2 inherits 11500, admin removes 5000, takes 4500 → expected 11000 → shift3 inherits 11000; chain ok. Also verified through the real UI (load/remove → Z-report opening 11200 removed 5000 expected 6200; both cash_movements signed+attributed; chain ok). Decision + worked example in [[shift]] (Drawer balance section). Standing gap: still no automated tests.
+
+## [2026-06-17] build | Live booth WebSocket feed (/api/ws)
+
+Added @fastify/websocket. EventLog.append fires a read-side onAppended callback after each durable insert (never touching the sign/chain path); device-events gained a `ledger` channel (emitLedger). New GET /api/ws fans out ledger + recomputed occupancy + printer-status to authenticated booth clients. Auth: JWT cookie (same as REST) + an Origin allowlist (WS_ALLOWED_ORIGINS) that REPLACES CSRF — a browser WebSocket can't send the double-submit header, so without an Origin check the read-only feed is open to Cross-Site WebSocket Hijacking (found + fixed by automated security review). See [[booth-console]], [[append-only-event-chain]].
+
+## [2026-06-17] build | Frontend foundation — Tailwind terminal theme, Query/Router/Zustand, live booth screen
+
+Operator UI outgrew plain React. Added TanStack Query (server state, wraps apiFetch), TanStack Router (role-guarded routes), Zustand (small client state: WS status + live feed), Tailwind v4 with a Bloomberg-terminal theme + Radix primitives. A /api/ws client invalidates Query caches on ledger pushes. Built the live /booth screen (occupancy gauge + streaming entry/exit/payment ticker). Vite proxies the WS upgrade. SUPERSEDES the "plain React, no framework" note on [[react-vite-spa]]. See [[booth-console]].
+
+## [2026-06-18] build | i18n — Albanian default + English, per-user server-stored preference
+
+Two languages via react-i18next, Albanian default/fallback. Language is a per-user preference: users.language (migration 0003), returned from login/me, changed via PUT /api/auth/language (NOT in the JWT — no re-login). Loaded on login, restored from any booth; SQ/EN header toggle persists. Type-safe key parity (en mirrors sq or the build fails). Translated booth + Login/Shift/Site/Permits/Tariff. SetupWizard deferred (server-provided catalog strings need backend i18n). Printed tickets stay Albanian (customer-facing). See [[i18n]], [[booth-console]].
+
+## [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.