feat: request notifications access only AFTER user action

lib/main.dart

@@ -6,11 +6,7 @@ import 'services/notification_service.dart';
 
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
-  await Firebase.initializeApp(
-    options: DefaultFirebaseOptions.currentPlatform,
-  );
-  
-  NotificationService().initialize();
+  await Firebase.initializeApp(options: DefaultFirebaseOptions.currentPlatform);
 
   runApp(MyApp());
 }
@@ -61,6 +57,9 @@ class _LandingPageState extends State<LandingPage>
       _showBottomSheet = true;
     });
     _animationController.forward();
+
+    // Request notification permissions on user action
+    NotificationService().requestPermissionAndSetup();
   }
 
   void _hideBottomSheet() {
@@ -78,6 +77,9 @@ class _LandingPageState extends State<LandingPage>
   }
 
   void _navigateToHome() {
+    // Request notification permissions on user action
+    NotificationService().requestPermissionAndSetup();
+
     Navigator.of(
       context,
     ).push(MaterialPageRoute(builder: (context) => HomeScreen()));

lib/services/notification_service.dart

@@ -31,15 +31,36 @@ class NotificationService {
       }
 
       _messaging = FirebaseMessaging.instance;
-      
-      await _requestPermission();
-      await _subscribeToTopics();
       await _setupMessageHandlers();
     } catch (e) {
       print('Error initializing notifications: $e');
     }
   }
 
+  Future<void> requestPermissionAndSetup() async {
+    try {
+      if (!kIsWeb) {
+        print('Notifications are only supported on web platform');
+        return;
+      }
+
+      if (!_isNotificationSupported()) {
+        print('Notifications are not supported in this browser');
+        return;
+      }
+
+      if (_messaging == null) {
+        _messaging = FirebaseMessaging.instance;
+        await _setupMessageHandlers();
+      }
+      
+      await _requestPermission();
+      await _subscribeToTopics();
+    } catch (e) {
+      print('Error requesting notification permission: $e');
+    }
+  }
+
   bool _isNotificationSupported() {
     if (!kIsWeb) return false;