auto-claude: subtask-2-3 - Create PhotoCaptureDialog component for photo confirmation

Add PhotoCaptureDialog widget component that:
- Shows captured photo preview with proper constraints
- Displays confirmation message using delivery name
- Provides Cancel and Upload action buttons
- Uses theme-aware styling with colorScheme
- Handles image loading errors gracefully
- Includes proper i18n support (EN/FR)

Added localization keys:
- confirmPhoto
- uploadPhotoConfirmation (with name placeholder)
- uploadingPhoto
- photoUploadSuccess
- photoUploadFailed
- cameraError
- uploadError
- serverError
- retake

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

lib/l10n/app_localizations_fr.dart

@@ -267,4 +267,39 @@ class AppLocalizationsFr extends AppLocalizations {
 
   @override
   String get close => 'Fermer';
+
+  @override
+  String get confirmPhoto => 'Confirmer la photo';
+
+  @override
+  String uploadPhotoConfirmation(String name) {
+    return 'Telecharger cette photo pour $name?';
+  }
+
+  @override
+  String get uploadingPhoto => 'Telechargement de la photo...';
+
+  @override
+  String get photoUploadSuccess => 'Photo telechargee avec succes';
+
+  @override
+  String photoUploadFailed(int statusCode) {
+    return 'Echec du telechargement: $statusCode';
+  }
+
+  @override
+  String cameraError(String message) {
+    return 'Erreur de camera: $message';
+  }
+
+  @override
+  String uploadError(String message) {
+    return 'Erreur de telechargement: $message';
+  }
+
+  @override
+  String get serverError => 'Erreur serveur - Veuillez contacter le support';
+
+  @override
+  String get retake => 'Reprendre';
 }