Implement the missing Flutter data layer so release builds compile: Dio ApiClient for /api/v1 (timer, time entries, projects, tasks, finance, time-off, users/me), JSON models, Hive LocalStorage, and offline SyncService queue.
Add OpenTelemetry (opentelemetry package) with initMobileOpenTelemetry() reading OTEL_EXPORTER_OTLP_ENDPOINT and OTEL_EXPORTER_OTLP_TOKEN via --dart-define, matching server OTLP base URL and Basic auth behavior. Instrument login token validation, timer start/stop, and sync pending.
Fix SyncUseCase to import storage SyncService, use trusted insecure hosts, and call syncAll().
GitHub Actions (build-mobile.yml, cd-release.yml): run flutter test; pass OTLP secrets into flutter build apk/appbundle/ios; switch iOS CI to release simulator builds and package build/ios/iphonesimulator/Runner.app to avoid requiring an Apple Development Team for generic device builds.
.gitignore: allow tracking mobile/lib/data/ despite the repo-wide data/ ignore rule.
Remove from index (keep on disk): .cursor/plans, logs/.gitkeep, logs/app.jsonl,
mobile lib files, tests/__pycache__/*.pyc. These are already in .gitignore;
stopping tracking so future changes are ignored.
Dries Peeters