- eslint.config.js: disable React Compiler rules (v7 flat.recommended enables
them; codebase does not use the Compiler); add e2e/ to disableTypeChecked
block; promote exhaustive-deps to error
- API broker: remove redundant as-casts (outboxWorker, poller, reminderScheduler,
expand, sync, vevent, spike); add targeted ical.js no-unsafe-assignment/argument
disables with justifying comments inside try blocks
- API routes/sse.ts: fix no-misused-promises on async writeSSE callback with
void+IIFE+catch pattern
- API routes/lists.ts: let → const for updateValues
- API tests: remove unused imports (beforeEach, eq, vi); rename unused vars
with _ prefix; remove unused lastActiveId assignment
- PWA components: void navigate() and void queryClient.invalidateQueries() on
all fire-and-forget call sites; fix CalendarShell explicit-type-casts;
Couldn't → HTML entity
- PWA test files: as unknown as Response for partial mock objects; string | null
type annotation on mockLastSyncedUid; remove async from test callbacks without
await; act(() => {}) not await act(async () => {}) for sync ops
- sw.ts: restructure Notification.data?.url access as let+if so disable
comments land on the exact violation lines; void self.skipWaiting()
- Wire publishListEvent fan-out in lists.ts after every write mutation (item:added/updated/deleted, list:updated/deleted)
- Add GET /api/sse/lists scoped endpoint in sse.ts: resolveUserId → 401 on null; getAccessibleListIds → subscribe only to accessible channels; 30s heartbeat; cleanup on disconnect (D-04/T-04-01/T-04-02)
- Create useListSSE.ts: bounded-backoff EventSource wrapper (250ms→500ms→1s→2s→4s→cap 8s); MAX_ATTEMPTS=6; withCredentials:true; close-before-retry prevents reconnect storm (Pitfall 3); invalidates ['list', listId] on open (D-10) and on each event; onStateChange('disconnected') after exhaustion (D-11)
- Create LiveSyncIndicator.tsx: connected=green dot; reconnecting=pulsing muted dot + label; disconnected=red dot + 'Updates paused' (role=alert); correct ARIA per UI-SPEC
- Wire useListSSE + LiveSyncIndicator into ListDetail header; retain refetchInterval:30000 polling fallback (D-12)
- All 8 useListSSE tests pass; all 54 API tests pass; both typechecks pass
- playwright-cli: live update confirmed (eggs item added via API appeared in browser without manual refresh)
Lucas Berger