feat: 实现日历提醒 in-app fallback 机制及通知服务重构

apps/lib/features/settings/ui/screens/edit_profile_screen.dart

@@ -6,6 +6,7 @@ import '../../../../shared/widgets/app_button.dart';
 import '../../../../shared/widgets/app_loading_indicator.dart';
 import '../../../../shared/widgets/toast/toast.dart';
 import '../../../../shared/widgets/toast/toast_type.dart';
+import '../../data/services/settings_user_cache.dart';
 import '../../../users/data/models/user_response.dart';
 import '../../../users/data/users_api.dart';
 import '../widgets/account_section_card.dart';
@@ -22,6 +23,7 @@ class _EditProfileScreenState extends State<EditProfileScreen> {
   final _usernameController = TextEditingController();
   final _bioController = TextEditingController();
   final _usersApi = sl<UsersApi>();
+  final _userCache = sl<SettingsUserCache>();
 
   UserResponse? _user;
   bool _isLoading = true;
@@ -35,9 +37,21 @@ class _EditProfileScreenState extends State<EditProfileScreen> {
   }
 
   Future<void> _loadUser() async {
+    final cached = _userCache.cachedUser;
+    if (cached != null) {
+      setState(() {
+        _user = cached;
+        _usernameController.text = cached.username;
+        _bioController.text = cached.bio ?? '';
+        _isLoading = false;
+      });
+      return;
+    }
+
     try {
       final user = await _usersApi.getMe();
       if (mounted) {
+        _userCache.set(user);
         setState(() {
           _user = user;
           _usernameController.text = user.username;
@@ -91,7 +105,8 @@ class _EditProfileScreenState extends State<EditProfileScreen> {
         username: newUsername,
         bio: newBio.isEmpty ? null : newBio,
       );
-      await _usersApi.updateMe(request);
+      final updatedUser = await _usersApi.updateMe(request);
+      _userCache.set(updatedUser);
 
       if (mounted) {
         Toast.show(context, '保存成功', type: ToastType.success);