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.dart

@@ -577,6 +577,60 @@ abstract class AppLocalizations {
   /// In en, this message translates to:
   /// **'Close'**
   String get close;
+
+  /// No description provided for @confirmPhoto.
+  ///
+  /// In en, this message translates to:
+  /// **'Confirm Photo'**
+  String get confirmPhoto;
+
+  /// No description provided for @uploadPhotoConfirmation.
+  ///
+  /// In en, this message translates to:
+  /// **'Upload this photo for {name}?'**
+  String uploadPhotoConfirmation(String name);
+
+  /// No description provided for @uploadingPhoto.
+  ///
+  /// In en, this message translates to:
+  /// **'Uploading photo...'**
+  String get uploadingPhoto;
+
+  /// No description provided for @photoUploadSuccess.
+  ///
+  /// In en, this message translates to:
+  /// **'Photo uploaded successfully'**
+  String get photoUploadSuccess;
+
+  /// No description provided for @photoUploadFailed.
+  ///
+  /// In en, this message translates to:
+  /// **'Upload failed: {statusCode}'**
+  String photoUploadFailed(int statusCode);
+
+  /// No description provided for @cameraError.
+  ///
+  /// In en, this message translates to:
+  /// **'Camera error: {message}'**
+  String cameraError(String message);
+
+  /// No description provided for @uploadError.
+  ///
+  /// In en, this message translates to:
+  /// **'Upload error: {message}'**
+  String uploadError(String message);
+
+  /// No description provided for @serverError.
+  ///
+  /// In en, this message translates to:
+  /// **'Server error - Please contact support'**
+  String get serverError;
+
+  /// No description provided for @retake.
+  ///
+  /// In en, this message translates to:
+  /// **'Retake'**
+  String get retake;
 }
 
 class _AppLocalizationsDelegate