v1.1 polish: accessibility, error logging, localization, and code quality sweep

- Wrap 30+ production print() statements in #if DEBUG guards across 18 files
- Add VoiceOver labels, hints, and traits to Watch app, Live Activities, widgets
- Add .accessibilityAddTraits(.isButton) to 15+ onTapGesture views
- Add text alternatives for color-only indicators (progress dots, mood circles)
- Localize raw string literals in NoteEditorView, EntryDetailView, widgets
- Replace 25+ silent try? with do/catch + AppLogger error logging
- Replace hardcoded font sizes with semantic Dynamic Type fonts
- Fix FIXME in IconPickerView (log icon change errors)
- Extract magic animation delays to named constants across 8 files
- Add widget empty state "Log your first mood!" messaging
- Hide decorative images from VoiceOver, add labels to ColorPickers
- Remove stale TODO in Color+Codable (alpha change deferred for migration)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Shared/Views/InsightsView/InsightsView.swift

@@ -13,6 +13,10 @@ enum InsightsTab: String, CaseIterable {
 }
 
 struct InsightsView: View {
+    private enum AnimationConstants {
+        static let refreshDelay: UInt64 = 500_000_000 // 0.5 seconds in nanoseconds
+    }
+
     @AppStorage(UserDefaultsStore.Keys.theme.rawValue, store: GroupUserDefaults.groupDefaults) private var theme: Theme = .system
     @AppStorage(UserDefaultsStore.Keys.moodTint.rawValue, store: GroupUserDefaults.groupDefaults) private var moodTint: MoodTints = .Default
     @AppStorage(UserDefaultsStore.Keys.moodImages.rawValue, store: GroupUserDefaults.groupDefaults) private var imagePack: MoodImages = .FontAwesome
@@ -40,6 +44,7 @@ struct InsightsView: View {
                     HStack(spacing: 4) {
                         Image(systemName: "sparkles")
                             .font(.caption.weight(.medium))
+                            .accessibilityHidden(true)
                         Text("AI")
                             .font(.caption.weight(.semibold))
                     }
@@ -148,7 +153,7 @@ struct InsightsView: View {
         .refreshable {
             viewModel.refreshInsights()
             // Small delay to show refresh animation
-            try? await Task.sleep(nanoseconds: 500_000_000)
+            try? await Task.sleep(nanoseconds: AnimationConstants.refreshDelay)
         }
         .disabled(iapManager.shouldShowPaywall)
     }
@@ -173,6 +178,7 @@ struct InsightsView: View {
 
                 Image(systemName: "sparkles")
                     .font(.largeTitle)
+                    .accessibilityHidden(true)
                     .foregroundStyle(
                         LinearGradient(
                             colors: [.purple, .blue],
@@ -202,6 +208,7 @@ struct InsightsView: View {
             } label: {
                 HStack {
                     Image(systemName: "sparkles")
+                        .accessibilityHidden(true)
                     Text("Get Personal Insights")
                 }
                 .font(.headline.weight(.bold))