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.
- ListDetailScreen: hide Share action icon when not connected to a server (isLoggedIn == false)
- ListsScreen: show informative prompt dialog if user attempts to join a list without active server connection
- ListDetailViewModel: expose sessionManager to check auth state cleanly
- ADB reinstall & launch verified ✅
- Generate high-res 3D shopping bag icon with checkmark badge
- Populate mipmap densities (mdpi, hdpi, xhdpi, xxhdpi, xxxhdpi)
- Configure adaptive icon XML & dark blue background color
- Re-install via ADB verified ✅
- SessionManager: return stable local_user ID when not logged in
- Navigation: start directly at ListsNavKey without requiring login
- ListsScreen: add 'Sync / Account' chip in top bar; lists work 100% locally by default
- AuthScreen: update text & add 'Zurück zu meinen Listen' button for returning to local mode
- ADB reinstall & launch verified ✅
Argon2id password hashing (PHC format, self-encoded/decoded without an
external lib) with constant-time verification, UserStore (create/get by
email and id) and SessionStore (opaque crypto/rand tokens, SHA-256 hashed
in DB, create/lookup/revoke, last_seen_at bump on lookup).
HTTP layer: Register/Login/Logout handlers + RequireAuth middleware.
Login uses a dummy-hash path so unknown-email and wrong-password yield the
same timing/shape, narrowing user enumeration. Tokens accepted via Bearer
header (native clients) or session cookie (HttpOnly, SameSite=Lax).
Routes wired in api.go: POST /auth/register, /auth/login, /auth/logout.
Verified with go test, go vet and an end-to-end smoke test against a real
PostgreSQL container (register/login/logout/duplicate/short-pw/wrong-pw).
OIDC (Phase B part 2) follows next; the issueSession helper is reused.
