fix(stability): エラーハンドリング強化・クラッシュ防止 (v1.0.45)

- backup_service: 復元ループを per-item try-catch に変更
  一件のJSONパース失敗でも他のアイテムが正常に復元されるよう修正
  rating/markup/score の num→double キャスト安全化も同時適用

- camera_analysis_mixin: cast<String>() を whereType<String>() に変更
  旧Hiveデータや型不一致でも新規登録がクラッシュしなくなる

- add_set_item_dialog: 空catchブロックにSnackBar通知を追加
  画像選択失敗時にユーザーへフィードバックを表示するよう修正

- Image.file() errorBuilder を6ファイルに追加
  sake_3d_carousel / sake_3d_carousel_with_reason / sake_search_delegate /
  sake_detail_sliver_app_bar (×2) / sake_photo_edit_modal /
  sakenowa_ranking_section — 画像ファイルが削除済みでも黒画面/クラッシュなし

- gemini_service: Device ID の debugPrint を kDebugMode ガードに変更

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

lib/screens/camera_analysis_mixin.dart

@@ -184,8 +184,10 @@ mixin CameraAnalysisMixin<T extends ConsumerStatefulWidget> on ConsumerState<T>
 
       // Prepend new item to sort order so it appears at the top
       final settingsBox = Hive.box('settings');
-      final List<String> currentOrder = (settingsBox.get('sake_sort_order') as List<dynamic>?)
+      final rawOrder = settingsBox.get('sake_sort_order');
-          ?.cast<String>() ?? [];
+      final List<String> currentOrder = (rawOrder is List)
+          ? rawOrder.whereType<String>().toList()
+          : [];
       currentOrder.insert(0, sakeItem.id);
       await settingsBox.put('sake_sort_order', currentOrder);
 

lib/screens/sake_detail/widgets/sake_detail_sliver_app_bar.dart

@@ -70,6 +70,10 @@ class SakeDetailSliverAppBar extends StatelessWidget {
                           final imageWidget = Image.file(
                             File(sake.displayData.imagePaths[index]),
                             fit: BoxFit.cover,
+                            errorBuilder: (context, error, stackTrace) => Container(
+                              color: Colors.grey[300],
+                              child: const Icon(Icons.broken_image, size: 60, color: Colors.grey),
+                            ),
                           );
 
                           // Apply Hero only to the first image for smooth transition from Grid/List
@@ -121,6 +125,10 @@ class SakeDetailSliverAppBar extends StatelessWidget {
                             ? Image.file(
                                 File(sake.displayData.imagePaths.first),
                                 fit: BoxFit.cover,
+                                errorBuilder: (context, error, stackTrace) => Container(
+                                  color: appColors.surfaceSubtle,
+                                  child: Icon(LucideIcons.imageOff, size: 80, color: appColors.iconSubtle),
+                                ),
                               )
                             : Container(
                                 color: appColors.surfaceSubtle,

lib/screens/sake_detail/widgets/sake_photo_edit_modal.dart

@@ -112,6 +112,12 @@ class _SakePhotoEditModalState extends State<SakePhotoEditModal> {
                               width: 60,
                               height: 60,
                               fit: BoxFit.cover,
+                              errorBuilder: (context, error, stackTrace) => Container(
+                                width: 60,
+                                height: 60,
+                                color: Colors.grey[200],
+                                child: const Icon(Icons.broken_image, size: 24, color: Colors.grey),
+                              ),
                             ),
                           ),
                           title: Text(

lib/services/backup_service.dart

@@ -455,7 +455,10 @@ class BackupService {
         final sakeBox = Hive.box<SakeItem>('sake_items');
 
         await sakeBox.clear();
+        int restoredCount = 0;
+        int skippedCount = 0;
         for (var itemData in sakeItemsJson) {
+          try {
             final data = itemData as Map<String, dynamic>;
 
             // JSONからSakeItemオブジェクトを再構築
@@ -467,21 +470,21 @@ class BackupService {
                 prefecture: data['displayData']['prefecture'] as String,
                 catchCopy: data['displayData']['catchCopy'] as String?,
                 imagePaths: List<String>.from(data['displayData']['imagePaths'] as List),
-              rating: data['displayData']['rating'] as double?,
+                rating: (data['displayData']['rating'] as num?)?.toDouble(),
               ),
               hiddenSpecs: HiddenSpecs(
                 description: data['hiddenSpecs']['description'] as String?,
                 tasteStats: Map<String, int>.from(data['hiddenSpecs']['tasteStats'] as Map),
                 flavorTags: List<String>.from(data['hiddenSpecs']['flavorTags'] as List),
-              sweetnessScore: data['hiddenSpecs']['sweetnessScore'] as double?,
+                sweetnessScore: (data['hiddenSpecs']['sweetnessScore'] as num?)?.toDouble(),
-              bodyScore: data['hiddenSpecs']['bodyScore'] as double?,
+                bodyScore: (data['hiddenSpecs']['bodyScore'] as num?)?.toDouble(),
               ),
               userData: UserData(
                 isFavorite: data['userData']['isFavorite'] as bool,
                 isUserEdited: data['userData']['isUserEdited'] as bool,
                 price: data['userData']['price'] as int?,
                 costPrice: data['userData']['costPrice'] as int?,
-              markup: data['userData']['markup'] as double,
+                markup: (data['userData']['markup'] as num).toDouble(),
                 priceVariants: data['userData']['priceVariants'] != null
                   ? Map<String, int>.from(data['userData']['priceVariants'] as Map)
                   : null,
@@ -498,8 +501,13 @@ class BackupService {
 
             // IDを保持するためにput()を使用（add()は新しいキーを生成してしまう）
             await sakeBox.put(item.id, item);
+            restoredCount++;
+          } catch (e) {
+            skippedCount++;
+            debugPrint('[RESTORE] Skipped malformed item: $e');
           }
-        debugPrint('[RESTORE] SakeItems restored (${sakeItemsJson.length} items)');
+        }
+        debugPrint('[RESTORE] SakeItems restored ($restoredCount items, $skippedCount skipped)');
         // UI更新のためにわずかに待機
         await Future.delayed(const Duration(milliseconds: 500));
       }

lib/services/gemini_service.dart

@@ -137,7 +137,7 @@ name・brand を出力する直前に以下を確認してください：
 
       // 3. デバイスID取得
       final deviceId = await DeviceService.getDeviceId();
-      debugPrint('Device ID: $deviceId');
+      if (kDebugMode) debugPrint('Device ID: $deviceId');
 
       // 4. リクエスト作成
       final requestBody = jsonEncode({

lib/widgets/add_set_item_dialog.dart

@@ -52,7 +52,12 @@ class _AddSetItemDialogState extends ConsumerState<AddSetItemDialog> {
         });
       }
     } catch (e) {
-      // Handle error
+      debugPrint('Image pick error: $e');
+      if (mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(content: Text('画像の選択に失敗しました。再度お試しください。')),
+        );
+      }
     }
   }
 

lib/widgets/sake_3d_carousel.dart

@@ -109,6 +109,10 @@ class _Sake3DCarouselState extends State<Sake3DCarousel> {
                   ? Image.file(
                       File(item.displayData.imagePaths.first),
                       fit: BoxFit.cover,
+                      errorBuilder: (context, error, stackTrace) => Container(
+                        color: Colors.grey[300],
+                        child: const Icon(Icons.broken_image, size: 50, color: Colors.grey),
+                      ),
                     )
                   : Container(
                       color: Colors.grey[300],

lib/widgets/sake_3d_carousel_with_reason.dart

@@ -164,6 +164,10 @@ class _Sake3DCarouselWithReasonState extends State<Sake3DCarouselWithReason> {
                   ? Image.file(
                       File(rec.item.displayData.imagePaths.first),
                       fit: BoxFit.cover,
+                      errorBuilder: (context, error, stackTrace) => Container(
+                        color: Colors.grey[300],
+                        child: Icon(LucideIcons.imageOff, size: 50, color: Colors.grey[600]),
+                      ),
                     )
                   : Container(
                       color: Colors.grey[300],

lib/widgets/sake_search_delegate.dart

@@ -70,7 +70,12 @@ class SakeSearchDelegate extends SearchDelegate {
                 width: 40, 
                 height: 40,
                 child: sake.displayData.imagePaths.isNotEmpty
-                  ? Image.file(File(sake.displayData.imagePaths.first), fit: BoxFit.cover)
+                  ? Image.file(
+                      File(sake.displayData.imagePaths.first),
+                      fit: BoxFit.cover,
+                      errorBuilder: (context, error, stackTrace) =>
+                          const Icon(LucideIcons.imageOff),
+                    )
                   : const Icon(LucideIcons.image),
               ),
               title: Text(sake.displayData.displayName),

lib/widgets/sakenowa/sakenowa_ranking_section.dart

@@ -286,6 +286,7 @@ class _SakenowaRankingSectionState extends ConsumerState<SakenowaRankingSection>
                 Image.file(
                   File(item.userImagePath!),
                   fit: BoxFit.cover,
+                  errorBuilder: (context, error, stackTrace) => const SizedBox.shrink(),
                 )
               else
                 Container(

pubspec.yaml

@@ -16,7 +16,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 1.0.44+51
+version: 1.0.45+52
 
 environment:
   sdk: ^3.10.1