Rename existing reminder channel on start

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app/lib/services/notification_backend_io.dart

@@ -24,6 +24,20 @@ class LocalNotificationsBackend implements NotificationBackend {
       android: AndroidInitializationSettings('@mipmap/ic_launcher'),
     );
     await plugin.initialize(settings: settings);
+
+    // Re-create the channel so Android renames it if an install still shows
+    // the old "Meal reminders" label.
+    await plugin
+        .resolvePlatformSpecificImplementation<
+          AndroidFlutterLocalNotificationsPlugin
+        >()
+        ?.createNotificationChannel(
+          const AndroidNotificationChannel(
+            _channelId,
+            _channelName,
+            importance: Importance.high,
+          ),
+        );
   }
 
   /// Requests Android 13+'s runtime `POST_NOTIFICATIONS` permission.

app/pubspec.yaml

@@ -2,7 +2,7 @@ name: diet_guard_app
 description: "Companion phone app for diet_guard: log meals on the go."
 publish_to: 'none'
 
-version: 1.0.150+1
+version: 1.0.151+1
 
 environment:
   sdk: ^3.12.2

app/test/services/notification_service_test.dart

@@ -34,6 +34,23 @@ void main() {
       expect(log.where((c) => c.method == 'initialize'), hasLength(1));
     });
 
+    test('init renames the reminder channel to the app name', () async {
+      final log = installFakeAndroidNotifications();
+      NotificationService.resetForTesting(
+        backend: LocalNotificationsBackend(FlutterLocalNotificationsPlugin()),
+      );
+
+      await NotificationService.init();
+
+      final createCall = log.firstWhere(
+        (c) => c.method == 'createNotificationChannel',
+        orElse: () => throw StateError('no createNotificationChannel call logged'),
+      );
+      final args = createCall.arguments as Map;
+      expect(args['id'], reminderChannelId);
+      expect(args['name'], 'DietGuard');
+    });
+
     test('requestPermission delegates to the Android implementation', () async {
       installFakeAndroidNotifications();
       NotificationService.resetForTesting(