f3213c080e
Phase 3 core (verifiable): WorkoutAnalyticsAdapter (app data → DaySample), AnalyticsCoordinator (idempotent backfill of missing weekly/monthly reports + retention prune, injectable providers), AnalyticsDeepLink (wenza://analytics report routing). Fixed a reconcile bug caught by tests: a retention-boundary week was generated then immediately pruned, regenerating every run — aligned completedWeekStartKeys to the prune cutoff → idempotent. Tests: AnalyticsAdapterTests + AnalyticsCoordinatorTests. Verified standalone via swiftc (~90 analytics assertions total across engine/store/adapter/coordinator). Remaining (app wiring, notifications, UI) requires an Xcode build — logged in ISSUES.md as device-only. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>