fix(apps): 修复通知点击不显示ReminderOverlay和日历编辑后不刷新问题

- AppDelegate: 只存储payload字段而非整个userInfo字典
- LocalNotificationService: 移除旧的取消/稍后提醒action按钮配置
- ReminderNotificationCallbacks: 添加onNotificationPayloadReceived静态回调
- IOSNotificationPayloadBridge: 添加setPendingPayload方法
- main.dart: 设置onNotificationPayloadReceived触发ReminderOverlay显示，添加WidgetsBindingObserver处理后台恢复
- CalendarEventDetailScreen: 编辑保存后正确传递刷新信号给日视图

apps/lib/main.dart

@@ -18,7 +18,6 @@ import 'features/auth/presentation/bloc/auth_event.dart';
 import 'features/auth/presentation/bloc/auth_state.dart';
 import 'features/calendar/data/services/calendar_service.dart';
 import 'features/calendar/data/services/calendar_repository.dart';
-import 'features/calendar/reminders/reminder_action_executor.dart';
 import 'features/calendar/reminders/reminder_queue_manager.dart';
 import 'features/calendar/reminders/ui/reminder_overlay.dart';
 import 'features/calendar/ui/calendar_state_manager.dart';
@@ -32,15 +31,6 @@ void main() async {
   await AppConstants.init();
 
   final rootNavigatorKey = GlobalKey<NavigatorState>();
-  sl<LocalNotificationService>().bindActionHandler(({
-    required action,
-    required payload,
-  }) {
-    return sl<ReminderActionExecutor>().handleAction(
-      action: action,
-      payload: payload,
-    );
-  });
   await sl<LocalNotificationService>().initialize();
 
   final authBloc = sl<AuthBloc>();
@@ -74,8 +64,23 @@ void main() async {
     await payloadBridge.clearPendingPayload();
   }
 
+  final linksyAppKey = GlobalKey();
+
+  ReminderNotificationCallbacks.onNotificationPayloadReceived =
+      (payload) async {
+        await payloadBridge.setPendingPayload(payload);
+        queueManager.enqueueFromClick(payload);
+        WidgetsBinding.instance.addPostFrameCallback((_) {
+          final state = linksyAppKey.currentState;
+          if (state != null && state is _LinksyAppState) {
+            state.showReminderOverlayFromNotification();
+          }
+        });
+      };
+
   runApp(
     LinksyApp(
+      key: linksyAppKey,
       authBloc: authBloc,
       rootNavigatorKey: rootNavigatorKey,
       sessionBootstrapper: AuthSessionBootstrapper(
@@ -116,18 +121,39 @@ class LinksyApp extends StatefulWidget {
   State<LinksyApp> createState() => _LinksyAppState();
 }
 
-class _LinksyAppState extends State<LinksyApp> {
+class _LinksyAppState extends State<LinksyApp> with WidgetsBindingObserver {
   OverlayEntry? _reminderOverlay;
 
   @override
   void initState() {
     super.initState();
+    WidgetsBinding.instance.addObserver(this);
     _checkAndShowReminderOverlay();
   }
 
+  @override
+  void dispose() {
+    WidgetsBinding.instance.removeObserver(this);
+    super.dispose();
+  }
+
+  @override
+  void didChangeAppLifecycleState(AppLifecycleState state) {
+    if (state == AppLifecycleState.resumed) {
+      _checkAndShowReminderOverlay();
+    }
+  }
+
   Future<void> _checkAndShowReminderOverlay() async {
     if (widget.queueManager.currentPayload != null) {
       _showReminderOverlay();
+      return;
+    }
+    final pendingPayload = await widget.payloadBridge.getPendingPayload();
+    if (pendingPayload != null) {
+      widget.queueManager.enqueueFromClick(pendingPayload);
+      await widget.payloadBridge.clearPendingPayload();
+      _showReminderOverlay();
     }
   }
 
@@ -147,10 +173,15 @@ class _LinksyAppState extends State<LinksyApp> {
         ),
       ),
     );
-
     Overlay.of(context).insert(_reminderOverlay!);
   }
 
+  void showReminderOverlayFromNotification() {
+    if (widget.queueManager.currentPayload != null) {
+      _showReminderOverlay();
+    }
+  }
+
   void _onReminderComplete() {
     _reminderOverlay?.remove();
     _reminderOverlay = null;