6b90c7b255
refactor: make syncAll manual-only via offline settings tab
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Remove automatic syncAll() calls on login, MFA login, register, and the
window 'online' event. Background bundle sync was the primary cause of
request storms that slowed down initial page loads. Mutation flushing on
reconnect is preserved — only the expensive trip-bundle sync is removed
from auto-triggers.
2026-05-05 20:08:02 +02:00
b194e8317d
feat(pwa): implement real offline mode with IndexedDB sync
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Add genuine offline read/write capability for trips:
- Dexie IndexedDB schema (trips, places, packing, todo, budget,
reservations, files, mutationQueue, syncMeta, blobCache)
- Repo layer for all domains: offline reads from Dexie, writes
optimistically to Dexie and enqueue mutations for later replay
- Mutation queue with UUID idempotency keys (X-Idempotency-Key),
FIFO flush, temp-ID reconciliation on 2xx, fail-and-continue on 4xx
- Trip sync manager: caches all trips with end_date >= today or null,
auto-evicts 7d after end_date, fetches bundle endpoint in one request
- Map tile prefetcher: bbox from place coords, zooms 10-16, 50MB cap,
warms SW cache via fetch
- Sync triggers: network online → flush + syncAll; WS reconnect →
flush only (rate-limiter safe); visibilitychange/30s → flush only
- WS remoteEventHandler writes through to Dexie on every event
- Server idempotency middleware + idempotency_keys table (migration 100,
24h TTL nightly cleanup)
- GET /api/trips/:id/bundle endpoint for efficient single-request sync
- OfflineBanner component: amber (offline) / blue (syncing) / hidden
- OfflineTab in Settings: cached trip list, re-sync and clear actions
- usePendingMutations hook for per-item pending indicators
Closes #505 #541
2026-04-14 23:04:25 +02:00
jubnl