- Fix ExtensionDataProvider <= boundary to < in date queries (prevented cross-day leaks)
- Replace force-unwraps with guards and add error logging in DataControllerGET and ExtensionDataProvider
- Route DayViewViewModel update/delete through MoodLogger.shared (was duplicating side effects)
- Add data listeners to InsightsViewModel and YearViewModel for cross-tab refresh
- Add HealthKitManager.deleteMood(for:) for single-date cleanup
- Add SharedModelContainer.isUsingInMemoryFallback flag with critical logging
- Add analytics events: entryDeleted, allDataCleared, duplicatesRemoved, storageFallbackActivated
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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