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/features/calendar/ui/screens/calendar_event_detail_screen.dart

@@ -218,15 +218,19 @@ class _CalendarEventDetailScreenState extends State<CalendarEventDetailScreen> {
     return event.startAt.isBefore(now);
   }
 
-  void _handleHeaderAction(
+  Future<void> _handleHeaderAction(
     _CalendarHeaderAction action,
     ScheduleItemModel event,
-  ) {
+  ) async {
     switch (action) {
       case _CalendarHeaderAction.edit:
-        context.push(AppRoutes.calendarEventEdit(event.id)).then((_) {
+        final changed = await context.push<bool>(
+          AppRoutes.calendarEventEdit(event.id),
+        );
+        if (changed == true) {
           _loadEvent();
-        });
+          if (mounted) context.pop(true);
+        }
         return;
       case _CalendarHeaderAction.delete:
         _showDeleteConfirmation();