Fix boundary bugs, route side effects through MoodLogger, add data listeners

- 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>

Shared/Views/InsightsView/InsightsViewModel.swift

@@ -51,6 +51,19 @@ class InsightsViewModel: ObservableObject {
 
     init() {
         isAIAvailable = insightService.isAvailable
+
+        DataController.shared.addNewDataListener { [weak self] in
+            self?.onDataChanged()
+        }
+    }
+
+    /// Called when mood data changes in another tab. Invalidates cached insights
+    /// so they are regenerated with fresh data on next view appearance.
+    private func onDataChanged() {
+        insightService.invalidateCache()
+        monthLoadingState = .idle
+        yearLoadingState = .idle
+        allTimeLoadingState = .idle
     }
 
     // MARK: - Public Methods