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/Services/PhotoManager.swift

@@ -92,7 +92,11 @@ class PhotoManager: ObservableObject {
         let thumbnailURL = thumbnailsDir.appendingPathComponent(filename)
         if let thumbnail = createThumbnail(from: image),
            let thumbnailData = thumbnail.jpegData(compressionQuality: 0.6) {
-            try? thumbnailData.write(to: thumbnailURL)
+            do {
+                try thumbnailData.write(to: thumbnailURL)
+            } catch {
+                AppLogger.photos.error("Failed to save thumbnail: \(error)")
+            }
         }
 
         AnalyticsManager.shared.track(.photoAdded)
@@ -107,13 +111,21 @@ class PhotoManager: ObservableObject {
         let filename = "\(id.uuidString).jpg"
         let fullURL = photosDir.appendingPathComponent(filename)
 
-        guard FileManager.default.fileExists(atPath: fullURL.path),
-              let data = try? Data(contentsOf: fullURL),
-              let image = UIImage(data: data) else {
+        guard FileManager.default.fileExists(atPath: fullURL.path) else {
             return nil
         }
 
-        return image
+        do {
+            let data = try Data(contentsOf: fullURL)
+            guard let image = UIImage(data: data) else {
+                AppLogger.photos.error("Failed to create UIImage from photo data: \(id)")
+                return nil
+            }
+            return image
+        } catch {
+            AppLogger.photos.error("Failed to read photo data for \(id): \(error)")
+            return nil
+        }
     }
 
     func loadThumbnail(id: UUID) -> UIImage? {
@@ -123,10 +135,15 @@ class PhotoManager: ObservableObject {
         let thumbnailURL = thumbnailsDir.appendingPathComponent(filename)
 
         // Try thumbnail first
-        if FileManager.default.fileExists(atPath: thumbnailURL.path),
-           let data = try? Data(contentsOf: thumbnailURL),
-           let image = UIImage(data: data) {
-            return image
+        if FileManager.default.fileExists(atPath: thumbnailURL.path) {
+            do {
+                let data = try Data(contentsOf: thumbnailURL)
+                if let image = UIImage(data: data) {
+                    return image
+                }
+            } catch {
+                AppLogger.photos.error("Failed to read thumbnail data for \(id): \(error)")
+            }
         }
 
         // Fall back to full image if thumbnail doesn't exist
@@ -159,7 +176,11 @@ class PhotoManager: ObservableObject {
 
         // Delete thumbnail
         if FileManager.default.fileExists(atPath: thumbnailURL.path) {
-            try? FileManager.default.removeItem(at: thumbnailURL)
+            do {
+                try FileManager.default.removeItem(at: thumbnailURL)
+            } catch {
+                AppLogger.photos.error("Failed to delete thumbnail: \(error)")
+            }
         }
 
         if success {
@@ -197,8 +218,13 @@ class PhotoManager: ObservableObject {
     var totalPhotoCount: Int {
         guard let photosDir = photosDirectory else { return 0 }
 
-        let files = try? FileManager.default.contentsOfDirectory(atPath: photosDir.path)
-        return files?.filter { $0.hasSuffix(".jpg") }.count ?? 0
+        do {
+            let files = try FileManager.default.contentsOfDirectory(atPath: photosDir.path)
+            return files.filter { $0.hasSuffix(".jpg") }.count
+        } catch {
+            AppLogger.photos.error("Failed to list photos directory: \(error)")
+            return 0
+        }
     }
 
     var totalStorageUsed: Int64 {