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2 commits

Author SHA1 Message Date
b44bc8c3af
Fix: Critical sync, build and data-safety bugs in Android app
Sync engine (critical):
- SyncWorker now pulls server ops for EVERY tracked list, not just
  lists with pending local outbox ops. Previously remote edits on
  'quiet' lists (incl. shared/joined lists) never arrived.
- SyncWorker advances the local HLC with each incoming server op
  (tick(op.hlcTs)) so LWW is correct across devices with skewed
  clocks; previously a fast-clock device permanently won conflicts
  and a slow-clock device's own edits were silently rejected.
- Added missing 'list_create' branch in applyServerOpProjection.
- Use server hlc_ts for createdAt/updatedAt in projections so lists
  and items keep a stable order instead of jumping by sync time.
- Prune old synced op_log rows (deleteOldSynced) to bound growth.
- Added ListDao.getAllListIds() one-shot query for the pull loop.

Build / runtime (critical):
- Added proguard-rules.pro with keep rules for kotlinx.serialization
  serializers and Retrofit interfaces; release builds with R8 would
  otherwise crash with SerializationException on the first API call.
- Added network_security_config.xml allowing cleartext only to
  10.0.2.2/localhost so the debug build can reach the local backend
  (blocked by default on Android 9+).
- Manifest: disable default WorkManager initializer so Hilt's
  HiltWorkerFactory is used (otherwise SyncWorker can fail to
  instantiate); added ACCESS_NETWORK_STATE permission.

Data safety (critical/major):
- Removed fallbackToDestructiveMigration from DatabaseModule: in a
  local-first app a destructive migration on schema bump would wipe
  the source of truth. Provide explicit Migrations instead.
- ShoppingRepository: wrap every local projection write + op_log
  insert in db.withTransaction{} so a crash between them can no
  longer silently lose a pending sync op.
- ShoppingRepository: replace manual JSON string concatenation with
  kotlinx.serialization buildJsonObject; the old escapeJson did not
  handle tab/CR/control chars, producing malformed op payloads.
- Persist device clientId and clientSeq counter in SessionManager so
  they survive process restarts (idempotency stays stable per device).
- Trigger immediate + periodic sync after login/register/OIDC so
  users see their lists without waiting up to 15 minutes.

.gitignore: ignore desktop.ini and backend/.testbin.
2026-08-06 10:01:57 +02:00
2899eb205b
Backend Phase A: foundation, migrations, Docker setup
- Go backend skeleton: config (caarlos0/env), slog JSON logging,
  pgxpool store, HTTP server with graceful shutdown.
- httpapi: render helpers, Problem errors, middleware chain
  (requestID / logging / recover / CORS), /healthz and /readyz.
- Migrations: full initial schema (users, sessions, lists,
  list_members, items, op_log SOURCE OF TRUTH, item_names) +
  golang-migrate runner binary using source/iofs (embedded).
- Docker: multi-stage Dockerfile (Go 1.26 -> distroless nonroot),
  builds both server and migrate binaries.
- deploy: docker-compose (caddy + backend + migrate + postgres:16),
  Caddyfile (auto-HTTPS), .env.example, pg extensions init script.
- AGENTS.md: project context + roadmap for AI agents.

Verified: image builds, both binaries run in container (smoke test).
2026-08-05 15:14:37 +02:00