- Lazy-init sfTracking to avoid touching Firebase at import time
- DRY SfTrackingRepository with a single _broadcast helper
- Drop empty DashboardTracking, fix double step_completed in device_setup
- Move yearsBetween to packages/utils
- Add 5 unit tests for SfTrackingRepository
- Strip noisy comments from mixins and view models
Introduces packages/sf_tracking — a multi-client, GDPR-first analytics layer with feature mixins, a GoRouter listener for automatic screen views, and a user properties helper that runs on login.
Wires the package into the legacy module 61 events
