Add comprehensive WCAG 2.1 AA accessibility support

- Add VoiceOver labels and hints to all voting layouts, settings, widgets,
  onboarding screens, and entry cells
- Add Reduce Motion support to button animations throughout the app
- Ensure 44x44pt minimum touch targets on widget mood buttons
- Enhance AccessibilityHelpers with Dynamic Type support, ScaledValue wrapper,
  and VoiceOver detection utilities
- Gate premium features (Insights, Month/Year views) behind subscription
- Update widgets to show subscription prompts for non-subscribers

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Shared/MoodLogger.swift

@@ -64,10 +64,11 @@ final class MoodLogger {
 
         Self.logger.info("Applying side effects for mood \(mood.rawValue) on \(date)")
 
-        // 1. Sync to HealthKit if enabled and requested
+        // 1. Sync to HealthKit if enabled, requested, and user has full access
         if syncHealthKit {
             let healthKitEnabled = GroupUserDefaults.groupDefaults.bool(forKey: UserDefaultsStore.Keys.healthKitEnabled.rawValue)
-            if healthKitEnabled {
+            let hasAccess = !IAPManager.shared.shouldShowPaywall
+            if healthKitEnabled && hasAccess {
                 Task {
                     try? await HealthKitManager.shared.saveMood(mood, for: date)
                 }