feat: 实现日历提醒完整功能（操作执行、通知服务重构、归档）

- 新增 ReminderActionExecutor 处理取消/稍后提醒操作
- 新增 ReminderOutboxStore 本地存储待处理操作
- 重构 LocalNotificationService 支持聚合提醒和交互操作
- 新增 event_color_resolver 工具类统一颜色解析
- 新增 CalendarService.archiveEvent 归档方法
- 增强 ModelTracking 支持缓存命中、推理token和成本追踪
- 添加 qwen3.5-35b-a3b 模型配置
- 更新 AndroidManifest 全屏intent权限
- 补充相关单元测试和文档

apps/android/app/src/main/AndroidManifest.xml

@@ -3,6 +3,7 @@
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
     <uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM" />
+    <uses-permission android:name="android.permission.USE_FULL_SCREEN_INTENT" />
     <uses-permission android:name="android.permission.RECORD_AUDIO" />
     <uses-permission android:name="android.permission.CAMERA" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" android:maxSdkVersion="32" />
@@ -34,6 +35,8 @@
             android:launchMode="singleTop"
             android:taskAffinity=""
             android:theme="@style/LaunchTheme"
+            android:showWhenLocked="true"
+            android:turnScreenOn="true"
             android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
             android:hardwareAccelerated="true"
             android:windowSoftInputMode="adjustResize">

apps/lib/core/di/injection.dart

@@ -1,6 +1,7 @@
 import 'package:dio/dio.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:get_it/get_it.dart';
+import 'package:shared_preferences/shared_preferences.dart';
 import '../api/api_client.dart';
 import '../api/i_api_client.dart';
 import '../storage/token_storage.dart';
@@ -13,6 +14,8 @@ import '../../features/auth/presentation/bloc/auth_bloc.dart';
 import '../../features/auth/presentation/bloc/auth_event.dart';
 import '../../features/calendar/data/calendar_api.dart';
 import '../../features/calendar/data/services/calendar_service.dart';
+import '../../features/calendar/reminders/reminder_action_executor.dart';
+import '../../features/calendar/reminders/reminder_outbox_store.dart';
 import '../../features/calendar/ui/calendar_state_manager.dart';
 import '../../features/friends/data/friends_api.dart';
 import '../../features/messages/data/inbox_api.dart';
@@ -49,6 +52,9 @@ Future<void> configureDependencies() async {
   final authApi = AuthApi(apiClient);
   sl.registerSingleton<AuthApi>(authApi);
 
+  final sharedPreferences = await SharedPreferences.getInstance();
+  sl.registerSingleton<SharedPreferences>(sharedPreferences);
+
   final usersApi = UsersApi(apiClient);
   sl.registerSingleton<UsersApi>(usersApi);
 
@@ -58,8 +64,18 @@ Future<void> configureDependencies() async {
   final calendarService = CalendarService(apiClient: apiClient);
   sl.registerSingleton<CalendarService>(calendarService);
 
+  final reminderOutboxStore = ReminderOutboxStore(sharedPreferences);
+  sl.registerSingleton<ReminderOutboxStore>(reminderOutboxStore);
+
   sl.registerSingleton<LocalNotificationService>(LocalNotificationService());
 
+  final reminderActionExecutor = ReminderActionExecutor(
+    calendarService: calendarService,
+    notificationService: sl<LocalNotificationService>(),
+    outboxStore: reminderOutboxStore,
+  );
+  sl.registerSingleton<ReminderActionExecutor>(reminderActionExecutor);
+
   final friendsApi = FriendsApi(apiClient);
   sl.registerSingleton<FriendsApi>(friendsApi);
 

apps/lib/core/notifications/local_notification_service.dart

@@ -1,26 +1,40 @@
-import 'package:flutter_local_notifications/flutter_local_notifications.dart';
+import 'dart:convert';
+
 import 'package:flutter/foundation.dart';
+import 'package:flutter_local_notifications/flutter_local_notifications.dart';
 import 'package:timezone/data/latest.dart' as tz_data;
 import 'package:timezone/timezone.dart' as tz;
 
 import '../../features/calendar/data/models/schedule_item_model.dart';
+import '../../features/calendar/reminders/models/reminder_action.dart';
+import '../../features/calendar/reminders/models/reminder_payload.dart';
+import '../../features/calendar/reminders/reminder_overlap_policy.dart';
 
-class NotificationScheduleException implements Exception {
-  final String message;
-
-  NotificationScheduleException(this.message);
-
-  @override
-  String toString() => message;
-}
+typedef ReminderNotificationActionHandler =
+    Future<void> Function({
+      required ReminderAction action,
+      required ReminderPayload payload,
+    });
 
 class LocalNotificationService {
-  final FlutterLocalNotificationsPlugin _plugin;
-  bool _initialized = false;
-  bool _exactAlarmPermissionRequested = false;
+  static const String _iosCategoryId = 'calendar_reminder_actions_v1';
+  static const String _actionCancel = 'cancel';
+  static const String _actionSnooze = 'snooze_10m';
 
-  LocalNotificationService({FlutterLocalNotificationsPlugin? plugin})
-    : _plugin = plugin ?? FlutterLocalNotificationsPlugin();
+  final FlutterLocalNotificationsPlugin _plugin;
+  final ReminderOverlapPolicy _overlapPolicy;
+  bool _initialized = false;
+  ReminderNotificationActionHandler? _actionHandler;
+
+  LocalNotificationService({
+    FlutterLocalNotificationsPlugin? plugin,
+    ReminderOverlapPolicy? overlapPolicy,
+  }) : _plugin = plugin ?? FlutterLocalNotificationsPlugin(),
+       _overlapPolicy = overlapPolicy ?? const ReminderOverlapPolicy();
+
+  void bindActionHandler(ReminderNotificationActionHandler handler) {
+    _actionHandler = handler;
+  }
 
   Future<void> initialize() async {
     if (_initialized) {
@@ -29,20 +43,40 @@ class LocalNotificationService {
     tz_data.initializeTimeZones();
 
     const android = AndroidInitializationSettings('@mipmap/ic_launcher');
-    const ios = DarwinInitializationSettings(
+    final ios = DarwinInitializationSettings(
       requestAlertPermission: false,
       requestBadgePermission: false,
       requestSoundPermission: false,
+      notificationCategories: [
+        DarwinNotificationCategory(
+          _iosCategoryId,
+          actions: <DarwinNotificationAction>[
+            DarwinNotificationAction.plain(_actionCancel, '取消'),
+            DarwinNotificationAction.plain(
+              _actionSnooze,
+              '稍后提醒',
+              options: <DarwinNotificationActionOption>{
+                DarwinNotificationActionOption.foreground,
+              },
+            ),
+          ],
+        ),
+      ],
     );
-    const settings = InitializationSettings(android: android, iOS: ios);
+    final settings = InitializationSettings(android: android, iOS: ios);
 
-    await _plugin.initialize(settings);
+    await _plugin.initialize(
+      settings,
+      onDidReceiveNotificationResponse: _onNotificationResponse,
+    );
 
     final androidImpl = _plugin
         .resolvePlatformSpecificImplementation<
           AndroidFlutterLocalNotificationsPlugin
         >();
     await androidImpl?.requestNotificationsPermission();
+    await androidImpl?.requestExactAlarmsPermission();
+    await androidImpl?.requestFullScreenIntentPermission();
 
     final iosImpl = _plugin
         .resolvePlatformSpecificImplementation<
@@ -55,115 +89,46 @@ class LocalNotificationService {
 
   Future<void> upsertEventReminder(ScheduleItemModel event) async {
     await initialize();
-
-    final reminderMinutes = event.metadata?.reminderMinutes;
-    if (reminderMinutes == null) {
+    if (event.status != ScheduleStatus.active ||
+        event.metadata?.reminderMinutes == null) {
       await cancelEventReminder(event.id);
       return;
     }
 
-    final fireAt = event.startAt.subtract(Duration(minutes: reminderMinutes));
-    if (!fireAt.isAfter(DateTime.now())) {
+    final now = DateTime.now();
+    final fireAt = _overlapPolicy.resolveFirstFireAt(event, now: now);
+    if (fireAt == null) {
       await cancelEventReminder(event.id);
       return;
     }
 
-    final notificationId = _notificationIdForEvent(event.id);
-    final scheduledAt = tz.TZDateTime.from(fireAt, tz.local);
-    final androidImpl = _plugin
-        .resolvePlatformSpecificImplementation<
-          AndroidFlutterLocalNotificationsPlugin
-        >();
+    await cancelEventReminder(event.id);
+    await _scheduleRemindersFrom(event: event, firstFireAt: fireAt);
+  }
 
-    var androidScheduleMode = AndroidScheduleMode.exactAllowWhileIdle;
-    if (defaultTargetPlatform == TargetPlatform.android &&
-        androidImpl != null) {
-      var notificationsEnabled =
-          await androidImpl.areNotificationsEnabled() ?? false;
-      if (!notificationsEnabled) {
-        await androidImpl.requestNotificationsPermission();
-        notificationsEnabled =
-            await androidImpl.areNotificationsEnabled() ?? false;
-      }
-      if (!notificationsEnabled) {
-        throw NotificationScheduleException('系统通知权限未开启，无法创建提醒');
-      }
-
-      try {
-        var canScheduleExact =
-            await androidImpl.canScheduleExactNotifications() ?? false;
-        if (!canScheduleExact && !_exactAlarmPermissionRequested) {
-          _exactAlarmPermissionRequested = true;
-          await androidImpl.requestExactAlarmsPermission();
-          canScheduleExact =
-              await androidImpl.canScheduleExactNotifications() ?? false;
-        }
-        if (!canScheduleExact) {
-          androidScheduleMode = AndroidScheduleMode.inexactAllowWhileIdle;
-        }
-      } catch (_) {
-        androidScheduleMode = AndroidScheduleMode.inexactAllowWhileIdle;
-      }
-    }
-
-    final details = NotificationDetails(
-      android: AndroidNotificationDetails(
-        'calendar_reminder_channel',
-        '日历提醒',
-        channelDescription: '日历事件提醒通知',
-        importance: Importance.max,
-        priority: Priority.high,
-        enableVibration: true,
-      ),
-      iOS: const DarwinNotificationDetails(
-        presentAlert: true,
-        presentSound: true,
-        presentBadge: true,
-      ),
-    );
-
-    try {
-      await _plugin.zonedSchedule(
-        notificationId,
-        event.title,
-        _buildReminderBody(event, reminderMinutes),
-        scheduledAt,
-        details,
-        androidScheduleMode: androidScheduleMode,
-        uiLocalNotificationDateInterpretation:
-            UILocalNotificationDateInterpretation.absoluteTime,
-      );
-
-      final pending = await _plugin.pendingNotificationRequests();
-      final scheduled = pending.any((item) => item.id == notificationId);
-      if (!scheduled) {
-        throw NotificationScheduleException('提醒未被系统接受，请检查系统通知和电池优化设置');
-      }
-    } catch (error) {
-      if (error is NotificationScheduleException) {
-        rethrow;
-      }
-      await _plugin.zonedSchedule(
-        notificationId,
-        event.title,
-        _buildReminderBody(event, reminderMinutes),
-        scheduledAt,
-        details,
-        androidScheduleMode: AndroidScheduleMode.inexactAllowWhileIdle,
-        uiLocalNotificationDateInterpretation:
-            UILocalNotificationDateInterpretation.absoluteTime,
-      );
-
-      final pending = await _plugin.pendingNotificationRequests();
-      final scheduled = pending.any((item) => item.id == notificationId);
-      if (!scheduled) {
-        throw NotificationScheduleException('提醒创建失败，请检查系统设置后重试');
-      }
-    }
+  Future<void> scheduleReminderAt(
+    ScheduleItemModel event,
+    DateTime fireAt,
+  ) async {
+    await initialize();
+    await cancelEventReminder(event.id);
+    await _scheduleRemindersFrom(event: event, firstFireAt: fireAt);
   }
 
   Future<void> cancelEventReminder(String eventId) async {
     await initialize();
+    final pending = await _plugin.pendingNotificationRequests();
+    for (final request in pending) {
+      final payload = _decodePayload(request.payload);
+      if (payload == null) {
+        continue;
+      }
+      if (payload.eventId == eventId ||
+          payload.aggregateIds.contains(eventId)) {
+        await _plugin.cancel(request.id);
+      }
+    }
+
     await _plugin.cancel(_notificationIdForEvent(eventId));
   }
 
@@ -171,8 +136,15 @@ class LocalNotificationService {
     Iterable<ScheduleItemModel> events,
   ) async {
     await initialize();
-    for (final event in events) {
-      await upsertEventReminder(event);
+
+    final now = DateTime.now();
+    final groups = _overlapPolicy.groupByMinute(events, now: now);
+    for (final group in groups) {
+      if (group.isAggregate) {
+        await _scheduleAggregateReminder(group.events, group.fireAt);
+        continue;
+      }
+      await upsertEventReminder(group.events.first);
     }
   }
 
@@ -180,10 +152,243 @@ class LocalNotificationService {
     return eventId.hashCode & 0x7fffffff;
   }
 
-  String _buildReminderBody(ScheduleItemModel event, int reminderMinutes) {
-    if (reminderMinutes == 0) {
-      return '日程现在开始：${event.title}';
+  int _notificationIdForEventCycle(
+    String eventId,
+    DateTime fireAt,
+    ReminderPayloadMode mode,
+  ) {
+    final cycleMinute =
+        fireAt.millisecondsSinceEpoch ~/
+        const Duration(minutes: 1).inMilliseconds;
+    return '$eventId|$cycleMinute|${mode.value}'.hashCode & 0x7fffffff;
+  }
+
+  Future<AndroidScheduleMode> _resolveAndroidScheduleMode() async {
+    if (defaultTargetPlatform != TargetPlatform.android) {
+      return AndroidScheduleMode.exactAllowWhileIdle;
+    }
+
+    final androidImpl = _plugin
+        .resolvePlatformSpecificImplementation<
+          AndroidFlutterLocalNotificationsPlugin
+        >();
+    if (androidImpl == null) {
+      return AndroidScheduleMode.exactAllowWhileIdle;
+    }
+
+    final canScheduleExact =
+        await androidImpl.canScheduleExactNotifications() ?? false;
+    return canScheduleExact
+        ? AndroidScheduleMode.exactAllowWhileIdle
+        : AndroidScheduleMode.inexactAllowWhileIdle;
+  }
+
+  NotificationDetails _buildNotificationDetails() {
+    return NotificationDetails(
+      android: AndroidNotificationDetails(
+        'calendar_alarm_channel_v2',
+        '日程闹钟提醒',
+        channelDescription: '日程到点闹钟式提醒通知',
+        importance: Importance.max,
+        priority: Priority.max,
+        category: AndroidNotificationCategory.alarm,
+        audioAttributesUsage: AudioAttributesUsage.alarm,
+        fullScreenIntent: true,
+        playSound: true,
+        enableVibration: true,
+        vibrationPattern: Int64List.fromList([0, 1000, 500, 1200]),
+        timeoutAfter: 30000,
+        autoCancel: true,
+        actions: <AndroidNotificationAction>[
+          AndroidNotificationAction(_actionCancel, '取消'),
+          AndroidNotificationAction(
+            _actionSnooze,
+            '稍后提醒',
+            showsUserInterface: true,
+          ),
+        ],
+      ),
+      iOS: const DarwinNotificationDetails(
+        presentAlert: true,
+        presentSound: true,
+        presentBadge: true,
+        categoryIdentifier: _iosCategoryId,
+      ),
+    );
+  }
+
+  Future<void> _scheduleSingleReminder({
+    required ScheduleItemModel event,
+    required DateTime fireAt,
+  }) async {
+    final notificationId = _notificationIdForEventCycle(
+      event.id,
+      fireAt,
+      ReminderPayloadMode.single,
+    );
+    final payload = ReminderPayload(
+      eventId: event.id,
+      title: event.title,
+      startAt: event.startAt,
+      endAt: event.endAt,
+      timezone: event.timezone,
+      location: event.metadata?.location,
+      notes: event.metadata?.notes,
+      color: event.metadata?.color,
+      mode: ReminderPayloadMode.single,
+      version: 1,
+    );
+
+    final details = _buildNotificationDetails();
+    final scheduledAt = tz.TZDateTime.from(fireAt, tz.local);
+    final mode = await _resolveAndroidScheduleMode();
+
+    try {
+      await _plugin.zonedSchedule(
+        notificationId,
+        event.title,
+        _buildReminderBody(event, event.metadata?.reminderMinutes ?? 0),
+        scheduledAt,
+        details,
+        payload: jsonEncode(payload.toJson()),
+        androidScheduleMode: mode,
+        uiLocalNotificationDateInterpretation:
+            UILocalNotificationDateInterpretation.absoluteTime,
+      );
+    } catch (_) {
+      await _plugin.zonedSchedule(
+        notificationId,
+        event.title,
+        _buildReminderBody(event, event.metadata?.reminderMinutes ?? 0),
+        scheduledAt,
+        details,
+        payload: jsonEncode(payload.toJson()),
+        androidScheduleMode: AndroidScheduleMode.inexactAllowWhileIdle,
+        uiLocalNotificationDateInterpretation:
+            UILocalNotificationDateInterpretation.absoluteTime,
+      );
+    }
+  }
+
+  Future<void> _scheduleRemindersFrom({
+    required ScheduleItemModel event,
+    required DateTime firstFireAt,
+  }) async {
+    final endAt = event.endAt;
+    var cursor = firstFireAt;
+    if (endAt == null) {
+      await _scheduleSingleReminder(event: event, fireAt: cursor);
+      return;
+    }
+
+    while (cursor.isBefore(endAt)) {
+      await _scheduleSingleReminder(event: event, fireAt: cursor);
+      cursor = cursor.add(const Duration(minutes: 10));
+    }
+  }
+
+  Future<void> _scheduleAggregateReminder(
+    List<ScheduleItemModel> events,
+    DateTime fireAt,
+  ) async {
+    if (events.isEmpty) {
+      return;
+    }
+
+    final first = events.first;
+    final aggregateIds = events.map((event) => event.id).toList();
+    for (final id in aggregateIds) {
+      await cancelEventReminder(id);
+    }
+
+    final payload = ReminderPayload(
+      eventId: first.id,
+      title: '你有${events.length}个日程提醒',
+      startAt: first.startAt,
+      endAt: first.endAt,
+      timezone: first.timezone,
+      mode: ReminderPayloadMode.aggregate,
+      aggregateIds: aggregateIds,
+      version: 1,
+    );
+
+    final details = _buildNotificationDetails();
+    final scheduledAt = tz.TZDateTime.from(fireAt, tz.local);
+    final mode = await _resolveAndroidScheduleMode();
+    final preview = events.take(3).map((item) => item.title).join('、');
+
+    await _plugin.zonedSchedule(
+      _notificationIdForEventCycle(
+        first.id,
+        fireAt,
+        ReminderPayloadMode.aggregate,
+      ),
+      '你有${events.length}个日程提醒',
+      preview,
+      scheduledAt,
+      details,
+      payload: jsonEncode(payload.toJson()),
+      androidScheduleMode: mode,
+      uiLocalNotificationDateInterpretation:
+          UILocalNotificationDateInterpretation.absoluteTime,
+    );
+  }
+
+  ReminderPayload? _decodePayload(String? raw) {
+    if (raw == null || raw.isEmpty) {
+      return null;
+    }
+    try {
+      final json = Map<String, dynamic>.from(jsonDecode(raw) as Map);
+      return ReminderPayload.fromJson(json);
+    } catch (_) {
+      return null;
+    }
+  }
+
+  String _buildReminderBody(ScheduleItemModel event, int reminderMinutes) {
+    final when = reminderMinutes == 0
+        ? '日程现在开始'
+        : '日程即将开始（提前$reminderMinutes分钟）';
+    final location = event.metadata?.location;
+    final notes = event.metadata?.notes;
+    final buffer = StringBuffer(when);
+    if (location != null && location.isNotEmpty) {
+      buffer.write('\n地点：$location');
+    }
+    if (notes != null && notes.isNotEmpty) {
+      buffer.write(
+        '\n备注：${notes.length > 30 ? '${notes.substring(0, 30)}...' : notes}',
+      );
+    }
+    return buffer.toString();
+  }
+
+  Future<void> _onNotificationResponse(NotificationResponse response) async {
+    final payloadRaw = response.payload;
+    if (payloadRaw == null || payloadRaw.isEmpty) {
+      return;
+    }
+    final handler = _actionHandler;
+    if (handler == null) {
+      return;
+    }
+
+    try {
+      final payload = ReminderPayload.fromJson(
+        Map<String, dynamic>.from(jsonDecode(payloadRaw) as Map),
+      );
+      final actionId = response.actionId;
+      if (actionId == _actionCancel) {
+        await handler(action: ReminderAction.cancel, payload: payload);
+        return;
+      }
+      if (actionId == _actionSnooze) {
+        await handler(action: ReminderAction.snooze10m, payload: payload);
+      }
+    } catch (_) {
+      debugPrint('failed to handle reminder notification response');
+      return;
     }
-    return '日程即将开始（提前$reminderMinutes分钟）：${event.title}';
   }
 }

apps/lib/core/startup/auth_session_bootstrapper.dart

@@ -1,16 +1,20 @@
 import '../../features/auth/presentation/bloc/auth_state.dart';
 import '../../features/calendar/data/services/calendar_service.dart';
+import '../../features/calendar/reminders/reminder_action_executor.dart';
 import '../notifications/local_notification_service.dart';
 
 class AuthSessionBootstrapper {
   AuthSessionBootstrapper({
     required CalendarService calendarService,
     required LocalNotificationService notificationService,
+    required ReminderActionExecutor reminderActionExecutor,
   }) : _calendarService = calendarService,
-       _notificationService = notificationService;
+       _notificationService = notificationService,
+       _reminderActionExecutor = reminderActionExecutor;
 
   final CalendarService _calendarService;
   final LocalNotificationService _notificationService;
+  final ReminderActionExecutor _reminderActionExecutor;
 
   String? _syncedUserId;
 
@@ -24,13 +28,15 @@ class AuthSessionBootstrapper {
       return;
     }
 
-    _syncedUserId = state.user.id;
-
     try {
+      await _reminderActionExecutor.replayPendingActions();
+
       final now = DateTime.now();
+      final start = now.subtract(const Duration(days: 90));
       final end = now.add(const Duration(days: 90));
-      final events = await _calendarService.getEventsForRange(now, end);
+      final events = await _calendarService.getEventsForRange(start, end);
       await _notificationService.rebuildUpcomingReminders(events);
+      _syncedUserId = state.user.id;
     } catch (_) {
       // ignore reminder bootstrap failures
     }

apps/lib/features/calendar/data/services/calendar_service.dart

@@ -44,6 +44,14 @@ class CalendarService {
     return _api.update(event);
   }
 
+  Future<ScheduleItemModel?> archiveEvent(String id) async {
+    final event = await getEventById(id);
+    if (event == null) {
+      return null;
+    }
+    return updateEvent(event.copyWith(status: ScheduleStatus.archived));
+  }
+
   Future<void> deleteEvent(String id) async {
     await _api.delete(id);
   }

apps/lib/features/calendar/reminders/models/reminder_action.dart

@@ -0,0 +1,17 @@
+enum ReminderAction {
+  cancel('cancel'),
+  snooze10m('snooze_10m'),
+  timeout30s('timeout_30s'),
+  autoArchive('auto_archive');
+
+  const ReminderAction(this.value);
+
+  final String value;
+
+  static ReminderAction fromValue(String raw) {
+    return ReminderAction.values.firstWhere(
+      (item) => item.value == raw,
+      orElse: () => ReminderAction.timeout30s,
+    );
+  }
+}

apps/lib/features/calendar/reminders/models/reminder_payload.dart

@@ -0,0 +1,174 @@
+class ReminderPayload {
+  final String eventId;
+  final String title;
+  final DateTime startAt;
+  final DateTime? endAt;
+  final String timezone;
+  final String? location;
+  final String? notes;
+  final String? color;
+  final ReminderPayloadMode mode;
+  final List<String> aggregateIds;
+  final int version;
+
+  const ReminderPayload({
+    required this.eventId,
+    required this.title,
+    required this.startAt,
+    required this.timezone,
+    this.endAt,
+    this.location,
+    this.notes,
+    this.color,
+    this.mode = ReminderPayloadMode.single,
+    this.aggregateIds = const [],
+    this.version = 1,
+  });
+
+  ReminderPayload copyWith({
+    String? eventId,
+    String? title,
+    DateTime? startAt,
+    DateTime? endAt,
+    String? timezone,
+    String? location,
+    String? notes,
+    String? color,
+    ReminderPayloadMode? mode,
+    List<String>? aggregateIds,
+    int? version,
+  }) {
+    return ReminderPayload(
+      eventId: eventId ?? this.eventId,
+      title: title ?? this.title,
+      startAt: startAt ?? this.startAt,
+      endAt: endAt ?? this.endAt,
+      timezone: timezone ?? this.timezone,
+      location: location ?? this.location,
+      notes: notes ?? this.notes,
+      color: color ?? this.color,
+      mode: mode ?? this.mode,
+      aggregateIds: aggregateIds ?? this.aggregateIds,
+      version: version ?? this.version,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'eventId': eventId,
+      'title': title,
+      'startAt': startAt.toIso8601String(),
+      'endAt': endAt?.toIso8601String(),
+      'timezone': timezone,
+      'location': location,
+      'notes': notes,
+      'color': color,
+      'mode': mode.value,
+      'aggregateIds': aggregateIds,
+      'version': version,
+    };
+  }
+
+  factory ReminderPayload.fromJson(Map<String, dynamic> json) {
+    final eventId = (json['eventId'] as String?) ?? '';
+    if (eventId.isEmpty) {
+      throw const FormatException('eventId is required');
+    }
+
+    final startAtRaw = json['startAt'] as String?;
+    if (startAtRaw == null || startAtRaw.isEmpty) {
+      throw const FormatException('startAt is required');
+    }
+    final parsedStartAt = DateTime.parse(startAtRaw);
+
+    final mode = ReminderPayloadMode.fromValue(
+      (json['mode'] as String?) ?? 'single',
+    );
+    final aggregateIds = (json['aggregateIds'] as List<dynamic>? ?? const [])
+        .map((item) => item.toString())
+        .toList();
+    if (mode == ReminderPayloadMode.aggregate && aggregateIds.length < 2) {
+      throw const FormatException('aggregateIds must contain at least 2 items');
+    }
+
+    return ReminderPayload(
+      eventId: eventId,
+      title: (json['title'] as String?) ?? '',
+      startAt: parsedStartAt,
+      endAt: json['endAt'] != null
+          ? DateTime.parse(json['endAt'] as String)
+          : null,
+      timezone: (json['timezone'] as String?) ?? 'UTC',
+      location: json['location'] as String?,
+      notes: json['notes'] as String?,
+      color: json['color'] as String?,
+      mode: mode,
+      aggregateIds: aggregateIds,
+      version: (json['version'] as int?) ?? 1,
+    );
+  }
+
+  @override
+  bool operator ==(Object other) {
+    if (identical(this, other)) {
+      return true;
+    }
+    return other is ReminderPayload &&
+        other.eventId == eventId &&
+        other.title == title &&
+        other.startAt == startAt &&
+        other.endAt == endAt &&
+        other.timezone == timezone &&
+        other.location == location &&
+        other.notes == notes &&
+        other.color == color &&
+        other.mode == mode &&
+        _listEquals(other.aggregateIds, aggregateIds) &&
+        other.version == version;
+  }
+
+  @override
+  int get hashCode {
+    return Object.hash(
+      eventId,
+      title,
+      startAt,
+      endAt,
+      timezone,
+      location,
+      notes,
+      color,
+      mode,
+      Object.hashAll(aggregateIds),
+      version,
+    );
+  }
+}
+
+enum ReminderPayloadMode {
+  single('single'),
+  aggregate('aggregate');
+
+  const ReminderPayloadMode(this.value);
+
+  final String value;
+
+  static ReminderPayloadMode fromValue(String raw) {
+    return ReminderPayloadMode.values.firstWhere(
+      (item) => item.value == raw,
+      orElse: () => ReminderPayloadMode.single,
+    );
+  }
+}
+
+bool _listEquals(List<String> left, List<String> right) {
+  if (left.length != right.length) {
+    return false;
+  }
+  for (var i = 0; i < left.length; i++) {
+    if (left[i] != right[i]) {
+      return false;
+    }
+  }
+  return true;
+}

apps/lib/features/calendar/reminders/reminder_action_executor.dart

@@ -0,0 +1,106 @@
+import 'dart:math';
+
+import '../data/services/calendar_service.dart';
+import '../../../core/notifications/local_notification_service.dart';
+import 'models/reminder_action.dart';
+import 'models/reminder_payload.dart';
+import 'reminder_outbox_store.dart';
+
+class ReminderActionExecutor {
+  final CalendarService _calendarService;
+  final LocalNotificationService _notificationService;
+  final ReminderOutboxStore _outboxStore;
+  final Random _random;
+
+  ReminderActionExecutor({
+    required CalendarService calendarService,
+    required LocalNotificationService notificationService,
+    required ReminderOutboxStore outboxStore,
+    Random? random,
+  }) : _calendarService = calendarService,
+       _notificationService = notificationService,
+       _outboxStore = outboxStore,
+       _random = random ?? Random();
+
+  Future<void> handleAction({
+    required ReminderAction action,
+    required ReminderPayload payload,
+  }) async {
+    final ids = payload.mode == ReminderPayloadMode.aggregate
+        ? payload.aggregateIds
+        : <String>[payload.eventId];
+
+    if (action == ReminderAction.cancel) {
+      for (final id in ids) {
+        await _notificationService.cancelEventReminder(id);
+        await _archiveEvent(id, ReminderAction.cancel);
+      }
+      return;
+    }
+
+    if (action == ReminderAction.snooze10m ||
+        action == ReminderAction.timeout30s) {
+      for (final id in ids) {
+        await _snoozeEvent(id);
+      }
+    }
+  }
+
+  Future<void> replayPendingActions() async {
+    final pending = await _outboxStore.listPending();
+    for (final item in pending) {
+      if (item.targetStatus != 'archived') {
+        await _outboxStore.markDone(item.opId);
+        continue;
+      }
+      try {
+        await _calendarService.archiveEvent(item.eventId);
+        await _outboxStore.markDone(item.opId);
+      } catch (error) {
+        await _outboxStore.markRetry(item.opId, error.toString());
+      }
+    }
+  }
+
+  Future<void> _snoozeEvent(String eventId) async {
+    final event = await _calendarService.getEventById(eventId);
+    if (event == null) {
+      return;
+    }
+    final now = DateTime.now();
+    final endAt = event.endAt;
+    if (endAt != null && !now.isBefore(endAt)) {
+      await _notificationService.cancelEventReminder(eventId);
+      await _archiveEvent(eventId, ReminderAction.autoArchive);
+      return;
+    }
+
+    final nextAt = now.add(const Duration(minutes: 10));
+    if (endAt != null && !nextAt.isBefore(endAt)) {
+      await _notificationService.cancelEventReminder(eventId);
+      await _archiveEvent(eventId, ReminderAction.autoArchive);
+      return;
+    }
+
+    await _notificationService.scheduleReminderAt(event, nextAt);
+  }
+
+  Future<void> _archiveEvent(String eventId, ReminderAction action) async {
+    final opId =
+        '${DateTime.now().millisecondsSinceEpoch}-${_random.nextInt(1 << 32)}';
+    final outboxItem = ReminderOutboxItem(
+      opId: opId,
+      eventId: eventId,
+      action: action,
+      targetStatus: 'archived',
+      occurredAt: DateTime.now(),
+    );
+    await _outboxStore.enqueue(outboxItem);
+    try {
+      await _calendarService.archiveEvent(eventId);
+      await _outboxStore.markDone(opId);
+    } catch (error) {
+      await _outboxStore.markRetry(opId, error.toString());
+    }
+  }
+}

apps/lib/features/calendar/reminders/reminder_outbox_store.dart

@@ -0,0 +1,202 @@
+import 'dart:convert';
+
+import 'package:shared_preferences/shared_preferences.dart';
+
+import 'models/reminder_action.dart';
+
+class ReminderOutboxItem {
+  final String opId;
+  final String eventId;
+  final ReminderAction action;
+  final String? targetStatus;
+  final DateTime occurredAt;
+  final int retryCount;
+  final DateTime? nextRetryAt;
+  final ReminderOutboxState state;
+  final String? lastError;
+
+  const ReminderOutboxItem({
+    required this.opId,
+    required this.eventId,
+    required this.action,
+    required this.occurredAt,
+    this.targetStatus,
+    this.retryCount = 0,
+    this.nextRetryAt,
+    this.state = ReminderOutboxState.pending,
+    this.lastError,
+  });
+
+  String get idempotencyBucket {
+    final bucket =
+        occurredAt.millisecondsSinceEpoch ~/
+        const Duration(minutes: 1).inMilliseconds;
+    return '$eventId|${action.value}|$bucket';
+  }
+
+  ReminderOutboxItem copyWith({
+    int? retryCount,
+    DateTime? nextRetryAt,
+    ReminderOutboxState? state,
+    String? lastError,
+  }) {
+    return ReminderOutboxItem(
+      opId: opId,
+      eventId: eventId,
+      action: action,
+      targetStatus: targetStatus,
+      occurredAt: occurredAt,
+      retryCount: retryCount ?? this.retryCount,
+      nextRetryAt: nextRetryAt ?? this.nextRetryAt,
+      state: state ?? this.state,
+      lastError: lastError ?? this.lastError,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'opId': opId,
+      'eventId': eventId,
+      'action': action.value,
+      'targetStatus': targetStatus,
+      'occurredAt': occurredAt.toIso8601String(),
+      'retryCount': retryCount,
+      'nextRetryAt': nextRetryAt?.toIso8601String(),
+      'state': state.value,
+      'lastError': lastError,
+    };
+  }
+
+  factory ReminderOutboxItem.fromJson(Map<String, dynamic> json) {
+    return ReminderOutboxItem(
+      opId: (json['opId'] as String?) ?? '',
+      eventId: (json['eventId'] as String?) ?? '',
+      action: ReminderAction.fromValue(
+        (json['action'] as String?) ?? 'timeout_30s',
+      ),
+      targetStatus: json['targetStatus'] as String?,
+      occurredAt: DateTime.parse(json['occurredAt'] as String),
+      retryCount: (json['retryCount'] as int?) ?? 0,
+      nextRetryAt: json['nextRetryAt'] != null
+          ? DateTime.parse(json['nextRetryAt'] as String)
+          : null,
+      state: ReminderOutboxState.fromValue(
+        (json['state'] as String?) ?? 'pending',
+      ),
+      lastError: json['lastError'] as String?,
+    );
+  }
+}
+
+enum ReminderOutboxState {
+  pending('pending'),
+  done('done'),
+  dead('dead');
+
+  const ReminderOutboxState(this.value);
+  final String value;
+
+  static ReminderOutboxState fromValue(String raw) {
+    return ReminderOutboxState.values.firstWhere(
+      (item) => item.value == raw,
+      orElse: () => ReminderOutboxState.pending,
+    );
+  }
+}
+
+class ReminderOutboxStore {
+  static const String _key = 'calendar_reminder_outbox_v1';
+  final SharedPreferences _prefs;
+
+  ReminderOutboxStore(this._prefs);
+
+  Future<void> enqueue(ReminderOutboxItem item) async {
+    final current = await _readAll();
+    final duplicated = current.any(
+      (existing) =>
+          existing.state == ReminderOutboxState.pending &&
+          existing.idempotencyBucket == item.idempotencyBucket,
+    );
+    if (duplicated) {
+      return;
+    }
+    current.add(item);
+    await _writeAll(current);
+  }
+
+  Future<List<ReminderOutboxItem>> listPending() async {
+    final all = await _readAll();
+    final now = DateTime.now();
+    return all
+        .where((item) => item.state == ReminderOutboxState.pending)
+        .where(
+          (item) => item.nextRetryAt == null || !item.nextRetryAt!.isAfter(now),
+        )
+        .toList();
+  }
+
+  Future<void> markDone(String opId) async {
+    final all = await _readAll();
+    final updated = all
+        .map(
+          (item) => item.opId == opId
+              ? item.copyWith(
+                  state: ReminderOutboxState.done,
+                  nextRetryAt: null,
+                )
+              : item,
+        )
+        .toList();
+    await _writeAll(updated);
+  }
+
+  Future<void> markRetry(String opId, String error) async {
+    final all = await _readAll();
+    final updated = all.map((item) {
+      if (item.opId != opId) {
+        return item;
+      }
+      final nextRetryCount = item.retryCount + 1;
+      if (nextRetryCount >= 8) {
+        return item.copyWith(
+          retryCount: nextRetryCount,
+          state: ReminderOutboxState.dead,
+          lastError: error,
+          nextRetryAt: null,
+        );
+      }
+      final delayMinutes = nextRetryCount == 1 ? 0 : 1 << (nextRetryCount - 1);
+      return item.copyWith(
+        retryCount: nextRetryCount,
+        lastError: error,
+        nextRetryAt: DateTime.now().add(Duration(minutes: delayMinutes)),
+      );
+    }).toList();
+    await _writeAll(updated);
+  }
+
+  Future<List<ReminderOutboxItem>> _readAll() async {
+    try {
+      final raw = _prefs.getString(_key);
+      if (raw == null || raw.isEmpty) {
+        return [];
+      }
+      final list = jsonDecode(raw) as List<dynamic>;
+      return list
+          .whereType<Map>()
+          .map(
+            (item) =>
+                ReminderOutboxItem.fromJson(Map<String, dynamic>.from(item)),
+          )
+          .toList();
+    } catch (_) {
+      await _prefs.remove(_key);
+      return [];
+    }
+  }
+
+  Future<void> _writeAll(List<ReminderOutboxItem> items) async {
+    final raw = jsonEncode(items.map((item) => item.toJson()).toList());
+    await _prefs.setString(_key, raw);
+  }
+}

apps/lib/features/calendar/reminders/reminder_overlap_policy.dart

@@ -0,0 +1,80 @@
+import '../data/models/schedule_item_model.dart';
+
+class ReminderOverlapGroup {
+  final DateTime fireAt;
+  final List<ScheduleItemModel> events;
+
+  const ReminderOverlapGroup({required this.fireAt, required this.events});
+
+  bool get isAggregate => events.length > 1;
+}
+
+class ReminderOverlapPolicy {
+  const ReminderOverlapPolicy();
+
+  List<ReminderOverlapGroup> groupByMinute(
+    Iterable<ScheduleItemModel> events, {
+    required DateTime now,
+  }) {
+    final buckets = <String, List<ScheduleItemModel>>{};
+    final minuteToFireAt = <String, DateTime>{};
+
+    for (final event in events) {
+      final fireAt = resolveFirstFireAt(event, now: now);
+      if (fireAt == null) {
+        continue;
+      }
+      final minute = DateTime(
+        fireAt.year,
+        fireAt.month,
+        fireAt.day,
+        fireAt.hour,
+        fireAt.minute,
+      );
+      final key = minute.toIso8601String();
+      buckets.putIfAbsent(key, () => <ScheduleItemModel>[]).add(event);
+      minuteToFireAt[key] = minuteToFireAt[key] ?? fireAt;
+    }
+
+    final groups = buckets.entries
+        .map(
+          (entry) => ReminderOverlapGroup(
+            fireAt: minuteToFireAt[entry.key]!,
+            events: entry.value,
+          ),
+        )
+        .toList();
+
+    groups.sort((left, right) => left.fireAt.compareTo(right.fireAt));
+    return groups;
+  }
+
+  DateTime? resolveFirstFireAt(
+    ScheduleItemModel event, {
+    required DateTime now,
+  }) {
+    if (event.status != ScheduleStatus.active) {
+      return null;
+    }
+    final reminderMinutes = event.metadata?.reminderMinutes;
+    if (reminderMinutes == null) {
+      return null;
+    }
+    final remindAt = event.startAt.subtract(Duration(minutes: reminderMinutes));
+    final endAt = event.endAt;
+
+    if (endAt != null && !now.isBefore(endAt)) {
+      return null;
+    }
+
+    if (now.isBefore(remindAt)) {
+      return remindAt;
+    }
+
+    if (endAt != null && now.isBefore(endAt)) {
+      return now.add(const Duration(seconds: 5));
+    }
+
+    return null;
+  }
+}

apps/lib/features/calendar/ui/screens/calendar_dayweek_screen.dart

@@ -9,6 +9,7 @@ import '../../data/models/schedule_item_model.dart';
 import '../../data/services/calendar_service.dart';
 import '../calendar_state_manager.dart';
 import '../calendar_time_utils.dart';
+import '../utils/event_color_resolver.dart';
 import '../dayweek/day_event_layout_engine.dart';
 import '../dayweek/day_timeline_metrics.dart';
 import '../dayweek/day_view_scale.dart';
@@ -614,7 +615,10 @@ class _CalendarDayWeekScreenState extends State<CalendarDayWeekScreen>
     required DayEventLayout layout,
     required double boardHeight,
   }) {
-    final eventColor = _parseColor(layout.event.metadata?.color);
+    final eventColor = resolveEventColor(
+      status: layout.event.status,
+      colorHex: layout.event.metadata?.color,
+    );
     final isCompact = layout.visualHeight < 20;
     final tapHeight = layout.visualHeight < _minEventTapHeight
         ? _minEventTapHeight
@@ -687,17 +691,6 @@ class _CalendarDayWeekScreenState extends State<CalendarDayWeekScreen>
     );
   }
 
-  Color _parseColor(String? hex) {
-    if (hex == null || hex.isEmpty) {
-      return AppColors.blue600;
-    }
-    try {
-      return Color(int.parse(hex.replaceFirst('#', '0xFF')));
-    } catch (_) {
-      return AppColors.blue600;
-    }
-  }
-
   Widget _buildBottomDock() {
     return BottomDock(
       activeTab: DockTab.calendar,

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

@@ -10,6 +10,7 @@ import '../../../../shared/widgets/detail_header_action_menu.dart';
 import '../../../../shared/widgets/destructive_action_sheet.dart';
 import '../../data/services/calendar_service.dart';
 import '../../data/models/schedule_item_model.dart';
+import '../utils/event_color_resolver.dart';
 import '../widgets/create_event_sheet.dart';
 import '../widgets/calendar_share_dialog.dart';
 
@@ -223,7 +224,7 @@ class _CalendarEventDetailScreenState extends State<CalendarEventDetailScreen> {
                   _formatReminderText(event.metadata?.reminderMinutes),
                 ),
                 const SizedBox(height: 14),
-                _buildColorField(event.metadata?.color),
+                _buildColorField(event),
                 const SizedBox(height: 14),
                 if (event.metadata?.location != null) ...[
                   _buildDetailField('地点', event.metadata!.location!),
@@ -275,7 +276,10 @@ class _CalendarEventDetailScreenState extends State<CalendarEventDetailScreen> {
                 width: 4,
                 height: 20,
                 decoration: BoxDecoration(
-                  color: _parseColor(event.metadata?.color),
+                  color: resolveEventColor(
+                    status: event.status,
+                    colorHex: event.metadata?.color,
+                  ),
                   borderRadius: BorderRadius.circular(2),
                 ),
               ),
@@ -343,8 +347,11 @@ class _CalendarEventDetailScreenState extends State<CalendarEventDetailScreen> {
     );
   }
 
-  Widget _buildColorField(String? colorHex) {
-    final color = _parseColor(colorHex);
+  Widget _buildColorField(ScheduleItemModel event) {
+    final color = resolveEventColor(
+      status: event.status,
+      colorHex: event.metadata?.color,
+    );
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
@@ -400,15 +407,6 @@ class _CalendarEventDetailScreenState extends State<CalendarEventDetailScreen> {
     );
   }
 
-  Color _parseColor(String? hex) {
-    if (hex == null || hex.isEmpty) return AppColors.blue600;
-    try {
-      return Color(int.parse(hex.replaceFirst('#', '0xFF')));
-    } catch (_) {
-      return AppColors.blue600;
-    }
-  }
-
   Widget _buildInputContainer() {
     return Container(
       height: 80,

apps/lib/features/calendar/ui/screens/calendar_month_screen.dart

@@ -7,6 +7,7 @@ import '../../../../core/theme/design_tokens.dart';
 import '../../../../shared/widgets/app_pressable.dart';
 import '../calendar_state_manager.dart';
 import '../calendar_time_utils.dart';
+import '../utils/event_color_resolver.dart';
 import '../widgets/bottom_dock.dart';
 import '../widgets/create_event_sheet.dart';
 import '../../data/models/schedule_item_model.dart';
@@ -360,7 +361,10 @@ class _CalendarMonthScreenState extends State<CalendarMonthScreen>
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
                 ...displayEvents.map((event) {
-                  final color = _parseColor(event.metadata?.color);
+                  final color = resolveEventColor(
+                    status: event.status,
+                    colorHex: event.metadata?.color,
+                  );
                   return AppPressable(
                     borderRadius: BorderRadius.circular(AppRadius.sm),
                     onTap: () {
@@ -415,15 +419,6 @@ class _CalendarMonthScreenState extends State<CalendarMonthScreen>
     );
   }
 
-  Color _parseColor(String? hex) {
-    if (hex == null || hex.isEmpty) return AppColors.blue600;
-    try {
-      return Color(int.parse(hex.replaceFirst('#', '0xFF')));
-    } catch (_) {
-      return AppColors.blue600;
-    }
-  }
-
   void _showMonthPicker() {
     var selectedYear = _currentMonth.year;
     var selectedMonth = _currentMonth.month;

apps/lib/features/calendar/ui/utils/event_color_resolver.dart

@@ -0,0 +1,23 @@
+import 'package:flutter/material.dart';
+
+import '../../../../core/theme/design_tokens.dart';
+import '../../data/models/schedule_item_model.dart';
+
+Color resolveEventColor({
+  required ScheduleStatus status,
+  required String? colorHex,
+}) {
+  if (status == ScheduleStatus.archived) {
+    return AppColors.slate400;
+  }
+
+  if (colorHex == null || colorHex.isEmpty) {
+    return AppColors.blue600;
+  }
+
+  try {
+    return Color(int.parse(colorHex.replaceFirst('#', '0xFF')));
+  } catch (_) {
+    return AppColors.blue600;
+  }
+}

apps/lib/features/calendar/ui/widgets/create_event_sheet.dart

@@ -669,9 +669,9 @@ class _CreateEventSheetState extends State<CreateEventSheet>
       try {
         final notificationService = sl<LocalNotificationService>();
         await notificationService.upsertEventReminder(saved);
-      } catch (e) {
+      } catch (_) {
         if (mounted) {
-          Toast.show(context, '提醒创建失败：$e', type: ToastType.warning);
+          Toast.show(context, '提醒创建失败，请检查通知权限', type: ToastType.warning);
         }
       }
 

apps/lib/main.dart

@@ -13,12 +13,23 @@ import 'features/auth/presentation/bloc/auth_bloc.dart';
 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/reminders/reminder_action_executor.dart';
 import 'features/chat/presentation/bloc/chat_bloc.dart';
 
 void main() async {
   WidgetsFlutterBinding.ensureInitialized();
   await configureDependencies();
   await AppConstants.init();
+  sl<LocalNotificationService>().bindActionHandler(({
+    required action,
+    required payload,
+  }) {
+    return sl<ReminderActionExecutor>().handleAction(
+      action: action,
+      payload: payload,
+    );
+  });
+  await sl<LocalNotificationService>().initialize();
 
   final authBloc = sl<AuthBloc>();
   authBloc.add(AuthStarted());
@@ -29,6 +40,7 @@ void main() async {
       sessionBootstrapper: AuthSessionBootstrapper(
         calendarService: sl<CalendarService>(),
         notificationService: sl<LocalNotificationService>(),
+        reminderActionExecutor: sl<ReminderActionExecutor>(),
       ),
     ),
   );

apps/test/core/startup/auth_session_bootstrapper_test.dart

@@ -4,23 +4,30 @@ import 'package:social_app/core/notifications/local_notification_service.dart';
 import 'package:social_app/core/startup/auth_session_bootstrapper.dart';
 import 'package:social_app/features/auth/presentation/bloc/auth_state.dart';
 import 'package:social_app/features/calendar/data/services/calendar_service.dart';
+import 'package:social_app/features/calendar/reminders/reminder_action_executor.dart';
 
 class MockCalendarService extends Mock implements CalendarService {}
 
 class MockLocalNotificationService extends Mock
     implements LocalNotificationService {}
 
+class MockReminderActionExecutor extends Mock
+    implements ReminderActionExecutor {}
+
 void main() {
   late MockCalendarService calendarService;
   late MockLocalNotificationService notificationService;
+  late MockReminderActionExecutor reminderActionExecutor;
   late AuthSessionBootstrapper bootstrapper;
 
   setUp(() {
     calendarService = MockCalendarService();
     notificationService = MockLocalNotificationService();
+    reminderActionExecutor = MockReminderActionExecutor();
     bootstrapper = AuthSessionBootstrapper(
       calendarService: calendarService,
       notificationService: notificationService,
+      reminderActionExecutor: reminderActionExecutor,
     );
   });
 
@@ -29,6 +36,7 @@ void main() {
 
     verifyNever(() => calendarService.getEventsForRange(any(), any()));
     verifyNever(() => notificationService.rebuildUpcomingReminders(any()));
+    verifyNever(() => reminderActionExecutor.replayPendingActions());
   });
 
   test('fetches upcoming events after authenticated state', () async {
@@ -38,6 +46,41 @@ void main() {
     when(
       () => notificationService.rebuildUpcomingReminders(any()),
     ).thenAnswer((_) async {});
+    when(
+      () => reminderActionExecutor.replayPendingActions(),
+    ).thenAnswer((_) async {});
+
+    await bootstrapper.syncForAuthState(
+      const AuthAuthenticated(
+        user: AuthUser(id: 'u1', email: 'a@test.com'),
+      ),
+    );
+
+    verify(() => calendarService.getEventsForRange(any(), any())).called(1);
+    verify(() => notificationService.rebuildUpcomingReminders(any())).called(1);
+    verify(() => reminderActionExecutor.replayPendingActions()).called(1);
+  });
+
+  test('retries sync when previous bootstrap failed', () async {
+    when(
+      () => reminderActionExecutor.replayPendingActions(),
+    ).thenThrow(Exception('offline'));
+
+    await bootstrapper.syncForAuthState(
+      const AuthAuthenticated(
+        user: AuthUser(id: 'u1', email: 'a@test.com'),
+      ),
+    );
+
+    when(
+      () => reminderActionExecutor.replayPendingActions(),
+    ).thenAnswer((_) async {});
+    when(
+      () => calendarService.getEventsForRange(any(), any()),
+    ).thenAnswer((_) async => []);
+    when(
+      () => notificationService.rebuildUpcomingReminders(any()),
+    ).thenAnswer((_) async {});
 
     await bootstrapper.syncForAuthState(
       const AuthAuthenticated(
@@ -45,7 +88,7 @@ void main() {
       ),
     );
 
+    verify(() => reminderActionExecutor.replayPendingActions()).called(2);
     verify(() => calendarService.getEventsForRange(any(), any())).called(1);
-    verify(() => notificationService.rebuildUpcomingReminders(any())).called(1);
   });
 }

apps/test/features/calendar/reminders/models/reminder_payload_test.dart

@@ -0,0 +1,42 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:social_app/features/calendar/reminders/models/reminder_payload.dart';
+
+void main() {
+  group('ReminderPayload', () {
+    test('round-trips single payload', () {
+      final payload = ReminderPayload(
+        eventId: 'evt_1',
+        title: 'Daily Sync',
+        startAt: DateTime.parse('2026-03-18T16:00:00+08:00'),
+        endAt: DateTime.parse('2026-03-18T17:00:00+08:00'),
+        timezone: 'Asia/Shanghai',
+        location: 'A101',
+        notes: 'Bring docs',
+        color: '#3B82F6',
+        mode: ReminderPayloadMode.single,
+        aggregateIds: const [],
+        version: 1,
+      );
+
+      final decoded = ReminderPayload.fromJson(payload.toJson());
+      expect(decoded, payload);
+    });
+
+    test('round-trips aggregate payload', () {
+      final payload = ReminderPayload(
+        eventId: 'evt_group',
+        title: 'Overlap Reminder',
+        startAt: DateTime.parse('2026-03-18T16:00:00+08:00'),
+        timezone: 'Asia/Shanghai',
+        mode: ReminderPayloadMode.aggregate,
+        aggregateIds: const ['evt_1', 'evt_2'],
+        version: 1,
+      );
+
+      final decoded = ReminderPayload.fromJson(payload.toJson());
+      expect(decoded.mode, ReminderPayloadMode.aggregate);
+      expect(decoded.aggregateIds, const ['evt_1', 'evt_2']);
+      expect(decoded, payload);
+    });
+  });
+}

apps/test/features/calendar/reminders/reminder_action_executor_test.dart

@@ -0,0 +1,117 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:mocktail/mocktail.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:social_app/core/notifications/local_notification_service.dart';
+import 'package:social_app/features/calendar/data/models/schedule_item_model.dart';
+import 'package:social_app/features/calendar/data/services/calendar_service.dart';
+import 'package:social_app/features/calendar/reminders/models/reminder_action.dart';
+import 'package:social_app/features/calendar/reminders/models/reminder_payload.dart';
+import 'package:social_app/features/calendar/reminders/reminder_action_executor.dart';
+import 'package:social_app/features/calendar/reminders/reminder_outbox_store.dart';
+
+class MockCalendarService extends Mock implements CalendarService {}
+
+class MockLocalNotificationService extends Mock
+    implements LocalNotificationService {}
+
+void main() {
+  late MockCalendarService calendarService;
+  late MockLocalNotificationService notificationService;
+  late ReminderOutboxStore outboxStore;
+  late ReminderActionExecutor executor;
+
+  setUp(() async {
+    SharedPreferences.setMockInitialValues({});
+    final prefs = await SharedPreferences.getInstance();
+    calendarService = MockCalendarService();
+    notificationService = MockLocalNotificationService();
+    outboxStore = ReminderOutboxStore(prefs);
+    executor = ReminderActionExecutor(
+      calendarService: calendarService,
+      notificationService: notificationService,
+      outboxStore: outboxStore,
+    );
+  });
+
+  test('cancel archives remotely and cancels local reminder', () async {
+    when(
+      () => notificationService.cancelEventReminder('evt_1'),
+    ).thenAnswer((_) async {});
+    when(
+      () => calendarService.archiveEvent('evt_1'),
+    ).thenAnswer((_) async => null);
+
+    await executor.handleAction(
+      action: ReminderAction.cancel,
+      payload: ReminderPayload(
+        eventId: 'evt_1',
+        title: 'sync',
+        startAt: DateTime.parse('2026-03-18T16:00:00+08:00'),
+        timezone: 'Asia/Shanghai',
+      ),
+    );
+
+    verify(() => notificationService.cancelEventReminder('evt_1')).called(1);
+    verify(() => calendarService.archiveEvent('evt_1')).called(1);
+    final pending = await outboxStore.listPending();
+    expect(pending, isEmpty);
+  });
+
+  test('archive failure writes pending outbox item', () async {
+    when(
+      () => notificationService.cancelEventReminder('evt_1'),
+    ).thenAnswer((_) async {});
+    when(
+      () => calendarService.archiveEvent('evt_1'),
+    ).thenThrow(Exception('offline'));
+
+    await executor.handleAction(
+      action: ReminderAction.cancel,
+      payload: ReminderPayload(
+        eventId: 'evt_1',
+        title: 'sync',
+        startAt: DateTime.parse('2026-03-18T16:00:00+08:00'),
+        timezone: 'Asia/Shanghai',
+      ),
+    );
+
+    final pending = await outboxStore.listPending();
+    expect(pending.length, 1);
+    expect(pending.first.eventId, 'evt_1');
+    expect(pending.first.state, ReminderOutboxState.pending);
+  });
+
+  test('snooze reschedules +10m when event not expired', () async {
+    final now = DateTime.now();
+    final event = ScheduleItemModel(
+      id: 'evt_1',
+      ownerId: 'u1',
+      title: 'sync',
+      startAt: now.add(const Duration(minutes: 1)),
+      endAt: now.add(const Duration(hours: 1)),
+      metadata: ScheduleMetadata(reminderMinutes: 15),
+    );
+    when(
+      () => calendarService.getEventById('evt_1'),
+    ).thenAnswer((_) async => event);
+    when(
+      () => notificationService.scheduleReminderAt(event, any()),
+    ).thenAnswer((_) async {});
+
+    await executor.handleAction(
+      action: ReminderAction.snooze10m,
+      payload: ReminderPayload(
+        eventId: 'evt_1',
+        title: 'sync',
+        startAt: event.startAt,
+        endAt: event.endAt,
+        timezone: 'Asia/Shanghai',
+      ),
+    );
+
+    verify(
+      () => notificationService.scheduleReminderAt(event, any()),
+    ).called(1);
+    verifyNever(() => calendarService.archiveEvent(any()));
+  });
+}

apps/test/features/calendar/reminders/reminder_overlap_policy_test.dart

@@ -0,0 +1,48 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:social_app/features/calendar/data/models/schedule_item_model.dart';
+import 'package:social_app/features/calendar/reminders/reminder_overlap_policy.dart';
+
+void main() {
+  final policy = ReminderOverlapPolicy();
+
+  test('groups reminders in same minute bucket', () {
+    final now = DateTime(2026, 3, 18, 15, 40, 0);
+    final eventA = ScheduleItemModel(
+      id: 'a',
+      ownerId: 'u1',
+      title: 'A',
+      startAt: DateTime(2026, 3, 18, 16, 0, 0),
+      endAt: DateTime(2026, 3, 18, 17, 0, 0),
+      metadata: ScheduleMetadata(reminderMinutes: 15),
+    );
+    final eventB = ScheduleItemModel(
+      id: 'b',
+      ownerId: 'u1',
+      title: 'B',
+      startAt: DateTime(2026, 3, 18, 16, 0, 20),
+      endAt: DateTime(2026, 3, 18, 17, 0, 0),
+      metadata: ScheduleMetadata(reminderMinutes: 15),
+    );
+
+    final groups = policy.groupByMinute([eventA, eventB], now: now);
+    expect(groups.length, 1);
+    expect(groups.first.events.length, 2);
+    expect(groups.first.isAggregate, isTrue);
+  });
+
+  test('returns compensation fire time when remindAt already passed', () {
+    final now = DateTime(2026, 3, 18, 15, 50, 0);
+    final event = ScheduleItemModel(
+      id: 'a',
+      ownerId: 'u1',
+      title: 'A',
+      startAt: DateTime(2026, 3, 18, 16, 0, 0),
+      endAt: DateTime(2026, 3, 18, 16, 30, 0),
+      metadata: ScheduleMetadata(reminderMinutes: 15),
+    );
+
+    final fireAt = policy.resolveFirstFireAt(event, now: now);
+    expect(fireAt, isNotNull);
+    expect(fireAt!.isAfter(now), isTrue);
+  });
+}

apps/test/features/calendar/ui/event_color_resolver_test.dart

@@ -0,0 +1,25 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:social_app/core/theme/design_tokens.dart';
+import 'package:social_app/features/calendar/data/models/schedule_item_model.dart';
+import 'package:social_app/features/calendar/ui/utils/event_color_resolver.dart';
+
+void main() {
+  test('returns gray for archived status regardless of custom color', () {
+    final color = resolveEventColor(
+      status: ScheduleStatus.archived,
+      colorHex: '#EF4444',
+    );
+
+    expect(color, AppColors.slate400);
+  });
+
+  test('returns parsed color for active status', () {
+    final color = resolveEventColor(
+      status: ScheduleStatus.active,
+      colorHex: '#3B82F6',
+    );
+
+    expect(color.value, const Color(0xFF3B82F6).value);
+  });
+}

backend/src/core/agentscope/runtime/model_tracking.py

@@ -15,8 +15,17 @@ class TrackingChatModel:
         self._inner = inner
         self._total_input_tokens = 0
         self._total_output_tokens = 0
+        self._total_tokens = 0
         self._total_latency_ms = 0
         self._cached_prompt_tokens = 0
+        self._prompt_cache_hit_tokens = 0
+        self._prompt_cache_miss_tokens = 0
+        self._reasoning_tokens = 0
+        self._direct_cost = 0.0
+        self._direct_cost_observed = False
+        self._model_call_records = 0
+        self._usage_records = 0
+        self._direct_cost_records = 0
 
     @property
     def stream(self) -> bool:
@@ -31,18 +40,37 @@ class TrackingChatModel:
 
     async def __call__(self, *args: Any, **kwargs: Any) -> Any:
         self._log_model_call(kwargs)
+        self._model_call_records += 1
         response = await self._inner(*args, **kwargs)
         if isinstance(response, AsyncGenerator):
             return self._track_stream(response)
         self._record_usage(getattr(response, "usage", None))
         return response
 
-    def usage_summary(self) -> dict[str, int]:
+    def usage_summary(self) -> dict[str, int | float | str]:
+        direct_cost = self._direct_cost if self._direct_cost_observed else 0.0
+        direct_cost_complete = (
+            self._model_call_records > 0
+            and self._model_call_records == self._direct_cost_records
+        )
         return {
             "input_tokens": self._total_input_tokens,
             "output_tokens": self._total_output_tokens,
+            "total_tokens": self._total_tokens,
             "latency_ms": self._total_latency_ms,
             "cached_prompt_tokens": self._cached_prompt_tokens,
+            "prompt_cache_hit_tokens": self._prompt_cache_hit_tokens,
+            "prompt_cache_miss_tokens": self._prompt_cache_miss_tokens,
+            "reasoning_tokens": self._reasoning_tokens,
+            "direct_cost": direct_cost,
+            "direct_cost_observed": int(self._direct_cost_observed),
+            "direct_cost_complete": int(direct_cost_complete),
+            "model_call_records": self._model_call_records,
+            "usage_records": self._usage_records,
+            "direct_cost_records": self._direct_cost_records,
+            "cost_source": "provider"
+            if self._direct_cost_observed
+            else "catalog_fallback",
         }
 
     def _log_model_call(self, kwargs: dict[str, Any]) -> None:
@@ -101,25 +129,167 @@ class TrackingChatModel:
     def _record_usage(self, usage: Any) -> None:
         if usage is None:
             return
-        self._total_input_tokens += max(int(getattr(usage, "input_tokens", 0) or 0), 0)
-        self._total_output_tokens += max(
-            int(getattr(usage, "output_tokens", 0) or 0), 0
+        self._usage_records += 1
+        usage_mapping = self._to_mapping(usage)
+        metadata = self._safe_get(usage, "metadata")
+        metadata_mapping = self._to_mapping(metadata)
+
+        input_tokens = self._coerce_int(
+            self._first_non_null(
+                self._safe_get(usage, "input_tokens"),
+                usage_mapping.get("input_tokens"),
+                metadata_mapping.get("prompt_tokens"),
+            )
         )
-        self._total_latency_ms += max(
-            int(round(float(getattr(usage, "time", 0) or 0) * 1000)), 0
+        output_tokens = self._coerce_int(
+            self._first_non_null(
+                self._safe_get(usage, "output_tokens"),
+                usage_mapping.get("output_tokens"),
+                metadata_mapping.get("completion_tokens"),
+            )
         )
-        metadata = getattr(usage, "metadata", None)
-        if metadata is None:
-            return
-        self._cached_prompt_tokens += max(self._extract_cached_tokens(metadata), 0)
+        total_tokens = self._coerce_int(
+            self._first_non_null(
+                self._safe_get(usage, "total_tokens"),
+                usage_mapping.get("total_tokens"),
+                metadata_mapping.get("total_tokens"),
+                input_tokens + output_tokens,
+            )
+        )
+        latency_ms = max(
+            int(
+                round(
+                    self._coerce_float(
+                        self._first_non_null(
+                            self._safe_get(usage, "time"),
+                            usage_mapping.get("time"),
+                            0.0,
+                        )
+                    )
+                    * 1000
+                )
+            ),
+            0,
+        )
+
+        prompt_tokens_details = self._to_mapping(
+            metadata_mapping.get("prompt_tokens_details")
+        )
+        completion_tokens_details = self._to_mapping(
+            metadata_mapping.get("completion_tokens_details")
+        )
+
+        cached_prompt_tokens = self._coerce_int(
+            self._first_non_null(
+                prompt_tokens_details.get("cached_tokens"),
+                metadata_mapping.get("prompt_cache_hit_tokens"),
+                0,
+            )
+        )
+        prompt_cache_hit_tokens = self._coerce_int(
+            self._first_non_null(
+                metadata_mapping.get("prompt_cache_hit_tokens"),
+                cached_prompt_tokens,
+            )
+        )
+        prompt_cache_miss_tokens = self._coerce_int(
+            self._first_non_null(
+                metadata_mapping.get("prompt_cache_miss_tokens"),
+                max(input_tokens - prompt_cache_hit_tokens, 0),
+            )
+        )
+        reasoning_tokens = self._coerce_int(
+            self._first_non_null(completion_tokens_details.get("reasoning_tokens"), 0)
+        )
+        direct_cost = self._coerce_optional_float(
+            self._first_non_null(
+                self._safe_get(usage, "cost"),
+                usage_mapping.get("cost"),
+                metadata_mapping.get("cost"),
+                metadata_mapping.get("total_cost"),
+            )
+        )
+
+        self._total_input_tokens += input_tokens
+        self._total_output_tokens += output_tokens
+        self._total_tokens += total_tokens
+        self._total_latency_ms += latency_ms
+        self._cached_prompt_tokens += cached_prompt_tokens
+        self._prompt_cache_hit_tokens += prompt_cache_hit_tokens
+        self._prompt_cache_miss_tokens += prompt_cache_miss_tokens
+        self._reasoning_tokens += reasoning_tokens
+        if direct_cost is not None:
+            self._direct_cost_observed = True
+            self._direct_cost_records += 1
+            self._direct_cost += max(direct_cost, 0.0)
 
     @staticmethod
-    def _extract_cached_tokens(metadata: Any) -> int:
-        if isinstance(metadata, dict):
-            prompt_details = metadata.get("prompt_tokens_details")
-            if isinstance(prompt_details, dict):
-                return int(prompt_details.get("cached_tokens", 0) or 0)
+    def _safe_get(obj: Any, key: str) -> Any:
+        if obj is None:
+            return None
+        try:
+            if isinstance(obj, dict):
+                return obj.get(key)
+            return getattr(obj, key, None)
+        except Exception:
+            return None
+
+    @classmethod
+    def _to_mapping(cls, obj: Any) -> dict[str, Any]:
+        if isinstance(obj, dict):
+            return dict(obj)
+        if obj is None:
+            return {}
+        model_dump = cls._safe_get(obj, "model_dump")
+        if callable(model_dump):
+            try:
+                dumped = model_dump()
+            except Exception:
+                dumped = None
+            if isinstance(dumped, dict):
+                return dumped
+        data = cls._safe_get(obj, "__dict__")
+        if isinstance(data, dict):
+            return data
+        return {}
+
+    @staticmethod
+    def _first_non_null(*values: Any) -> Any:
+        for value in values:
+            if value is not None:
+                return value
+        return None
+
+    @staticmethod
+    def _coerce_int(value: Any) -> int:
+        if value is None:
+            return 0
+        if isinstance(value, bool):
+            return int(value)
+        if isinstance(value, int):
+            return max(value, 0)
+        try:
+            return max(int(float(value)), 0)
+        except Exception:
             return 0
 
-        prompt_details = getattr(metadata, "prompt_tokens_details", None)
-        return int(getattr(prompt_details, "cached_tokens", 0) or 0)
+    @staticmethod
+    def _coerce_float(value: Any) -> float:
+        if value is None:
+            return 0.0
+        try:
+            return max(float(value), 0.0)
+        except Exception:
+            return 0.0
+
+    @staticmethod
+    def _coerce_optional_float(value: Any) -> float | None:
+        if value is None:
+            return None
+        try:
+            parsed = float(value)
+        except Exception:
+            return None
+        if parsed < 0:
+            return None
+        return parsed

backend/src/core/config/static/database/llm_catalog.yaml

@@ -1,52 +1,63 @@
 factories:
-  - name: dashscope
-    request_url: https://dashscope.aliyuncs.com/compatible-mode/v1
-    avatar: https://registry.npmmirror.com/@lobehub/icons-static-png/latest/files/light/qwen-color.png
+    - name: dashscope
+      request_url: https://dashscope.aliyuncs.com/compatible-mode/v1
+      avatar: https://registry.npmmirror.com/@lobehub/icons-static-png/latest/files/light/qwen-color.png
 
-  - name: minimax
-    request_url: https://api.minimaxi.com/v1
-    avatar: https://registry.npmmirror.com/@lobehub/icons-static-png/latest/files/light/minimax-color.png
+    - name: minimax
+      request_url: https://api.minimaxi.com/v1
+      avatar: https://registry.npmmirror.com/@lobehub/icons-static-png/latest/files/light/minimax-color.png
 
-  - name: moonshot
-    request_url: https://api.moonshot.cn/v1
-    avatar: https://registry.npmmirror.com/@lobehub/icons-static-png/latest/files/light/moonshot.png
+    - name: moonshot
+      request_url: https://api.moonshot.cn/v1
+      avatar: https://registry.npmmirror.com/@lobehub/icons-static-png/latest/files/light/moonshot.png
 
-  - name: deepseek
-    request_url: https://api.deepseek.com/v1
-    avatar: https://registry.npmmirror.com/@lobehub/icons-static-png/latest/files/light/deepseek-color.png
+    - name: deepseek
+      request_url: https://api.deepseek.com/v1
+      avatar: https://registry.npmmirror.com/@lobehub/icons-static-png/latest/files/light/deepseek-color.png
 
-  - name: volcengine
-    request_url: https://ark.cn-beijing.volces.com/api/v3
-    avatar: https://registry.npmmirror.com/@lobehub/icons-static-png/latest/files/light/doubao-color.png
+    - name: volcengine
+      request_url: https://ark.cn-beijing.volces.com/api/v3
+      avatar: https://registry.npmmirror.com/@lobehub/icons-static-png/latest/files/light/doubao-color.png
 
-  - name: zai
-    request_url: https://api.z.ai/api/paas/v4
-    avatar: https://registry.npmmirror.com/@lobehub/icons-static-png/latest/files/light/zai.png
+    - name: zai
+      request_url: https://api.z.ai/api/paas/v4
+      avatar: https://registry.npmmirror.com/@lobehub/icons-static-png/latest/files/light/zai.png
 
 llms:
-  # qwen3.5-flash (3 tiers: 128K, 256K, 1M)
-  - model_code: qwen3.5-flash
-    factory_name: dashscope
-    litellm_model: dashscope/qwen3.5-flash
-    pricing_tiers:
-      - max_prompt_tokens: 128000
-        input_cost_per_token: 0.0000002
-        output_cost_per_token: 0.000002
-        cache_hit_cost_per_token: 0.00000002
-      - max_prompt_tokens: 256000
-        input_cost_per_token: 0.0000008
-        output_cost_per_token: 0.000008
-        cache_hit_cost_per_token: 0.00000008
-      - max_prompt_tokens: 1000000
-        input_cost_per_token: 0.0000012
-        output_cost_per_token: 0.000012
-        cache_hit_cost_per_token: 0.00000012
+    # qwen3.5-flash (3 tiers: 128K, 256K, 1M)
+    - model_code: qwen3.5-flash
+      factory_name: dashscope
+      litellm_model: dashscope/qwen3.5-flash
+      pricing_tiers:
+          - max_prompt_tokens: 128000
+            input_cost_per_token: 0.0000002
+            output_cost_per_token: 0.000002
+            cache_hit_cost_per_token: 0.00000002
+          - max_prompt_tokens: 256000
+            input_cost_per_token: 0.0000008
+            output_cost_per_token: 0.000008
+            cache_hit_cost_per_token: 0.00000008
+          - max_prompt_tokens: 1000000
+            input_cost_per_token: 0.0000012
+            output_cost_per_token: 0.000012
+            cache_hit_cost_per_token: 0.00000012
 
-  - model_code: deepseek-chat
-    factory_name: deepseek
-    litellm_model: deepseek/deepseek-chat
-    pricing_tiers:
-      - max_prompt_tokens: 128000
-        input_cost_per_token: 0.000002
-        output_cost_per_token: 0.000003
-        cache_hit_cost_per_token: 0.0000002
+    - model_code: qwen3.5-35b-a3b
+      factory_name: dashscope
+      litellm_model: dashscope/qwen3.5-35b-a3b
+      pricing_tiers:
+          - max_prompt_tokens: 128000
+            input_cost_per_token: 0.0000004
+            output_cost_per_token: 0.0000032
+          - max_prompt_tokens: 256000
+            input_cost_per_token: 0.0000016
+            output_cost_per_token: 0.0000128
+
+    - model_code: deepseek-chat
+      factory_name: deepseek
+      litellm_model: deepseek/deepseek-chat
+      pricing_tiers:
+          - max_prompt_tokens: 128000
+            input_cost_per_token: 0.000002
+            output_cost_per_token: 0.000003
+            cache_hit_cost_per_token: 0.0000002

backend/src/services/litellm/service.py

@@ -85,9 +85,15 @@ class LiteLLMService:
                 selected_tier = tier
                 break
 
+        cached_token_rate = (
+            selected_tier.cache_hit_cost_per_token
+            if selected_tier.cache_hit_cost_per_token > 0
+            else selected_tier.input_cost_per_token
+        )
+
         return float(
             uncached_prompt_tokens * selected_tier.input_cost_per_token
-            + normalized_cached_tokens * selected_tier.cache_hit_cost_per_token
+            + normalized_cached_tokens * cached_token_rate
             + normalized_completion_tokens * selected_tier.output_cost_per_token
         )
 
@@ -95,23 +101,86 @@ class LiteLLMService:
         self,
         *,
         model: str,
-        usage_summary: dict[str, int] | None,
+        usage_summary: dict[str, Any] | None,
     ) -> dict[str, Any]:
         summary = usage_summary or {}
         input_tokens = max(int(summary.get("input_tokens", 0) or 0), 0)
         output_tokens = max(int(summary.get("output_tokens", 0) or 0), 0)
+        total_tokens = max(
+            int(summary.get("total_tokens", input_tokens + output_tokens) or 0), 0
+        )
         latency_ms = max(int(summary.get("latency_ms", 0) or 0), 0)
         cached_prompt_tokens = max(int(summary.get("cached_prompt_tokens", 0) or 0), 0)
-        cost = self.calculate_cost(
-            model=model,
-            prompt_tokens=input_tokens,
-            completion_tokens=output_tokens,
-            cached_prompt_tokens=cached_prompt_tokens,
+        prompt_cache_hit_tokens = max(
+            int(summary.get("prompt_cache_hit_tokens", cached_prompt_tokens) or 0), 0
         )
+        prompt_cache_miss_tokens = max(
+            int(
+                summary.get(
+                    "prompt_cache_miss_tokens",
+                    max(input_tokens - prompt_cache_hit_tokens, 0),
+                )
+                or 0
+            ),
+            0,
+        )
+        reasoning_tokens = max(int(summary.get("reasoning_tokens", 0) or 0), 0)
+        direct_cost_raw = summary.get("direct_cost")
+        direct_cost_observed = bool(int(summary.get("direct_cost_observed", 0) or 0))
+        direct_cost_complete = bool(int(summary.get("direct_cost_complete", 0) or 0))
+        model_call_records = max(int(summary.get("model_call_records", 0) or 0), 0)
+        usage_records = max(int(summary.get("usage_records", 0) or 0), 0)
+        usage_complete = model_call_records == 0 or model_call_records == usage_records
+        direct_cost = self._coerce_non_negative_float(direct_cost_raw)
+
+        if (
+            usage_complete
+            and direct_cost_observed
+            and direct_cost_complete
+            and direct_cost is not None
+        ):
+            cost = direct_cost
+            cost_source = "provider"
+        else:
+            cost = self.calculate_cost(
+                model=model,
+                prompt_tokens=input_tokens,
+                completion_tokens=output_tokens,
+                cached_prompt_tokens=cached_prompt_tokens,
+            )
+            cost_source = (
+                "incomplete_usage_fallback"
+                if not usage_complete
+                else (
+                    "catalog_fallback_incomplete_provider_cost"
+                    if direct_cost_observed and not direct_cost_complete
+                    else "catalog_fallback"
+                )
+            )
+
         return {
             "model": model,
             "inputTokens": input_tokens,
             "outputTokens": output_tokens,
+            "totalTokens": total_tokens,
+            "cachedPromptTokens": cached_prompt_tokens,
+            "promptCacheHitTokens": prompt_cache_hit_tokens,
+            "promptCacheMissTokens": prompt_cache_miss_tokens,
+            "reasoningTokens": reasoning_tokens,
             "cost": cost,
+            "costSource": cost_source,
+            "usageComplete": usage_complete,
             "latencyMs": latency_ms,
         }
+
+    @staticmethod
+    def _coerce_non_negative_float(value: Any) -> float | None:
+        if value is None:
+            return None
+        try:
+            parsed = float(value)
+        except (TypeError, ValueError):
+            return None
+        if parsed < 0:
+            return None
+        return parsed

backend/src/v1/schedule_items/repository.py

@@ -9,7 +9,7 @@ from sqlalchemy.exc import SQLAlchemyError
 
 from core.db.base_repository import BaseRepository
 from core.logging import get_logger
-from models.schedule_items import ScheduleItem
+from models.schedule_items import ScheduleItem, ScheduleItemStatus
 from models.schedule_subscriptions import ScheduleSubscription, SubscriptionStatus
 
 if TYPE_CHECKING:
@@ -61,6 +61,11 @@ class ScheduleItemRepository(Protocol):
         start_at: datetime,
         end_at: datetime,
     ) -> Sequence[tuple[ScheduleItem, ScheduleSubscription]]: ...
+    async def archive_expired_subscribed_items(
+        self,
+        subscriber_id: UUID,
+        now_at: datetime,
+    ) -> int: ...
 
 
 class SQLAlchemyScheduleItemRepository(BaseRepository[ScheduleItem]):
@@ -149,8 +154,13 @@ class SQLAlchemyScheduleItemRepository(BaseRepository[ScheduleItem]):
                 select(ScheduleItem)
                 .where(ScheduleItem.owner_id == owner_id)
                 .where(ScheduleItem.deleted_at.is_(None))
-                .where(ScheduleItem.start_at >= start_at)
                 .where(ScheduleItem.start_at <= end_at)
+                .where(
+                    or_(
+                        ScheduleItem.end_at.is_(None),
+                        ScheduleItem.end_at >= start_at,
+                    )
+                )
                 .order_by(ScheduleItem.start_at.asc())
             )
             result = await self._session.execute(stmt)
@@ -308,8 +318,13 @@ class SQLAlchemyScheduleItemRepository(BaseRepository[ScheduleItem]):
                 .where(ScheduleSubscription.subscriber_id == subscriber_id)
                 .where(ScheduleSubscription.status == SubscriptionStatus.ACTIVE)
                 .where(ScheduleItem.deleted_at.is_(None))
-                .where(ScheduleItem.start_at >= start_at)
                 .where(ScheduleItem.start_at <= end_at)
+                .where(
+                    or_(
+                        ScheduleItem.end_at.is_(None),
+                        ScheduleItem.end_at >= start_at,
+                    )
+                )
                 .order_by(ScheduleItem.start_at.asc())
             )
             result = await self._session.execute(stmt)
@@ -317,3 +332,38 @@ class SQLAlchemyScheduleItemRepository(BaseRepository[ScheduleItem]):
         except SQLAlchemyError:
             logger.exception("Failed to list subscribed items")
             raise
+
+    async def archive_expired_subscribed_items(
+        self,
+        subscriber_id: UUID,
+        now_at: datetime,
+    ) -> int:
+        try:
+            item_ids_subquery = (
+                select(ScheduleItem.id)
+                .join(
+                    ScheduleSubscription,
+                    ScheduleSubscription.item_id == ScheduleItem.id,
+                )
+                .where(ScheduleSubscription.subscriber_id == subscriber_id)
+                .where(ScheduleSubscription.status == SubscriptionStatus.ACTIVE)
+                .where(ScheduleItem.deleted_at.is_(None))
+                .where(ScheduleItem.status == ScheduleItemStatus.ACTIVE)
+                .where(ScheduleItem.end_at.is_not(None))
+                .where(ScheduleItem.end_at <= now_at)
+            )
+
+            stmt = (
+                update(ScheduleItem)
+                .where(ScheduleItem.id.in_(item_ids_subquery))
+                .values(status=ScheduleItemStatus.ARCHIVED)
+            )
+            result = await self._session.execute(stmt)
+            await self._session.flush()
+            return int(getattr(result, "rowcount", 0) or 0)
+        except SQLAlchemyError:
+            logger.exception(
+                "Failed to archive expired subscribed items",
+                subscriber_id=str(subscriber_id),
+            )
+            raise

backend/src/v1/schedule_items/service.py

@@ -240,6 +240,11 @@ class ScheduleItemService(BaseService):
             raise HTTPException(status_code=400, detail="end_at must be after start_at")
 
         try:
+            archived_count = await self._repository.archive_expired_subscribed_items(
+                user_id,
+                datetime.now(timezone.utc),
+            )
+
             subscribed_items = (
                 await self._repository.list_subscribed_items_by_date_range(
                     user_id, normalized_start_at, normalized_end_at
@@ -256,9 +261,12 @@ class ScheduleItemService(BaseService):
                 )
 
             results.sort(key=lambda x: x.start_at)
+            if archived_count > 0:
+                await self._session.commit()
 
             return results
         except SQLAlchemyError:
+            await self._session.rollback()
             logger.exception("Failed to list schedule items")
             raise HTTPException(
                 status_code=503, detail="Schedule item store unavailable"

backend/tests/unit/core/agentscope/runtime/test_model_tracking.py

@@ -0,0 +1,126 @@
+from __future__ import annotations
+
+from typing import Any, cast
+
+from core.agentscope.runtime.model_tracking import TrackingChatModel
+
+
+class _FakeMetadata:
+    def model_dump(self) -> dict[str, object]:
+        return {
+            "prompt_tokens": 120,
+            "completion_tokens": 30,
+            "total_tokens": 150,
+            "prompt_tokens_details": {
+                "cached_tokens": 80,
+            },
+            "prompt_cache_hit_tokens": 80,
+            "prompt_cache_miss_tokens": 40,
+            "completion_tokens_details": {
+                "reasoning_tokens": 5,
+            },
+        }
+
+
+class _FakeUsage:
+    input_tokens = 120
+    output_tokens = 30
+    time = 1.234
+    metadata = _FakeMetadata()
+
+
+class _FakeResponse:
+    usage = _FakeUsage()
+
+
+class _FakeModel:
+    stream = False
+
+    async def __call__(self, *args: object, **kwargs: object) -> _FakeResponse:
+        return _FakeResponse()
+
+
+class _FakeUsageWithProviderCost:
+    input_tokens = 50
+    output_tokens = 10
+    time = 0.5
+    cost = 0.0123
+    metadata = _FakeMetadata()
+
+
+class _FakeResponseWithProviderCost:
+    usage = _FakeUsageWithProviderCost()
+
+
+class _FakeModelWithProviderCost:
+    stream = False
+
+    async def __call__(
+        self, *args: object, **kwargs: object
+    ) -> _FakeResponseWithProviderCost:
+        return _FakeResponseWithProviderCost()
+
+
+class _FakeResponseWithoutUsage:
+    usage = None
+
+
+class _FakeModelWithoutUsage:
+    stream = False
+
+    async def __call__(
+        self, *args: object, **kwargs: object
+    ) -> _FakeResponseWithoutUsage:
+        return _FakeResponseWithoutUsage()
+
+
+async def test_tracking_chat_model_collects_primary_usage_fields() -> None:
+    model = TrackingChatModel(cast(Any, _FakeModel()))
+
+    await model("prompt")
+
+    summary = model.usage_summary()
+    assert summary["input_tokens"] == 120
+    assert summary["output_tokens"] == 30
+    assert summary["total_tokens"] == 150
+    assert summary["latency_ms"] == 1234
+    assert summary["cached_prompt_tokens"] == 80
+    assert summary["prompt_cache_hit_tokens"] == 80
+    assert summary["prompt_cache_miss_tokens"] == 40
+    assert summary["reasoning_tokens"] == 5
+    assert summary["direct_cost"] == 0.0
+    assert summary["direct_cost_observed"] == 0
+    assert summary["direct_cost_complete"] == 0
+    assert summary["model_call_records"] == 1
+    assert summary["usage_records"] == 1
+    assert summary["direct_cost_records"] == 0
+    assert summary["cost_source"] == "catalog_fallback"
+
+
+async def test_tracking_chat_model_prefers_provider_cost_when_available() -> None:
+    model = TrackingChatModel(cast(Any, _FakeModelWithProviderCost()))
+
+    await model("prompt")
+
+    summary = model.usage_summary()
+    assert summary["direct_cost"] == 0.0123
+    assert summary["direct_cost_observed"] == 1
+    assert summary["direct_cost_complete"] == 1
+    assert summary["model_call_records"] == 1
+    assert summary["usage_records"] == 1
+    assert summary["direct_cost_records"] == 1
+    assert summary["cost_source"] == "provider"
+
+
+async def test_tracking_chat_model_marks_direct_cost_incomplete_when_usage_missing() -> (
+    None
+):
+    model = TrackingChatModel(cast(Any, _FakeModelWithoutUsage()))
+
+    await model("prompt")
+
+    summary = model.usage_summary()
+    assert summary["model_call_records"] == 1
+    assert summary["usage_records"] == 0
+    assert summary["direct_cost_records"] == 0
+    assert summary["direct_cost_complete"] == 0

backend/tests/unit/services/test_litellm_service.py

@@ -44,10 +44,75 @@ def test_build_usage_metadata_calculates_cost_from_usage_summary() -> None:
         },
     )
 
-    assert metadata == {
-        "model": "dashscope/qwen3.5-flash",
-        "inputTokens": 2000,
-        "outputTokens": 100,
-        "cost": pytest.approx(0.00051),
-        "latencyMs": 321,
-    }
+    assert metadata["model"] == "dashscope/qwen3.5-flash"
+    assert metadata["inputTokens"] == 2000
+    assert metadata["outputTokens"] == 100
+    assert metadata["totalTokens"] == 2100
+    assert metadata["cachedPromptTokens"] == 500
+    assert metadata["promptCacheHitTokens"] == 500
+    assert metadata["promptCacheMissTokens"] == 1500
+    assert metadata["reasoningTokens"] == 0
+    assert metadata["cost"] == pytest.approx(0.00051)
+    assert metadata["costSource"] == "catalog_fallback"
+    assert metadata["usageComplete"] is True
+    assert metadata["latencyMs"] == 321
+
+
+def test_build_usage_metadata_prefers_provider_direct_cost() -> None:
+    service = LiteLLMService()
+
+    metadata = service.build_usage_metadata(
+        model="deepseek-chat",
+        usage_summary={
+            "input_tokens": 1000,
+            "output_tokens": 100,
+            "latency_ms": 100,
+            "cached_prompt_tokens": 0,
+            "direct_cost": 0.1234,
+            "direct_cost_observed": 1,
+            "direct_cost_complete": 1,
+        },
+    )
+
+    assert metadata["cost"] == pytest.approx(0.1234)
+    assert metadata["costSource"] == "provider"
+    assert metadata["usageComplete"] is True
+
+
+def test_build_usage_metadata_falls_back_when_provider_cost_incomplete() -> None:
+    service = LiteLLMService()
+
+    metadata = service.build_usage_metadata(
+        model="deepseek-chat",
+        usage_summary={
+            "input_tokens": 1000,
+            "output_tokens": 100,
+            "latency_ms": 100,
+            "cached_prompt_tokens": 0,
+            "direct_cost": 0.1234,
+            "direct_cost_observed": 1,
+            "direct_cost_complete": 0,
+        },
+    )
+
+    assert metadata["cost"] == pytest.approx(0.0023)
+    assert metadata["costSource"] == "catalog_fallback_incomplete_provider_cost"
+
+
+def test_build_usage_metadata_marks_incomplete_usage_fallback() -> None:
+    service = LiteLLMService()
+
+    metadata = service.build_usage_metadata(
+        model="deepseek-chat",
+        usage_summary={
+            "input_tokens": 0,
+            "output_tokens": 0,
+            "latency_ms": 0,
+            "cached_prompt_tokens": 0,
+            "model_call_records": 1,
+            "usage_records": 0,
+        },
+    )
+
+    assert metadata["costSource"] == "incomplete_usage_fallback"
+    assert metadata["usageComplete"] is False

backend/tests/unit/v1/schedule_items/test_service.py

@@ -4,6 +4,7 @@ from uuid import UUID, uuid4
 
 import pytest
 from fastapi import HTTPException
+from sqlalchemy.exc import SQLAlchemyError
 
 from core.auth.models import CurrentUser
 from models.schedule_items import (
@@ -13,6 +14,7 @@ from models.schedule_items import (
 )
 from v1.schedule_items.schemas import (
     ScheduleItemCreateRequest,
+    ScheduleItemListRequest,
     ScheduleItemMetadata,
     ScheduleItemUpdateRequest,
 )
@@ -43,6 +45,7 @@ def _create_mock_schedule_item(
 class FakeRepo:
     def __init__(self, item: ScheduleItem | None) -> None:
         self._item = item
+        self.archive_expired_called = 0
 
     async def get_by_item_id(
         self, item_id: UUID, owner_id: UUID
@@ -89,8 +92,9 @@ class FakeRepo:
         *,
         page: int,
         page_size: int,
+        query: str | None = None,
     ) -> tuple[list[ScheduleItem], int]:
-        del owner_id, page, page_size
+        del owner_id, page, page_size, query
         return ([self._item] if self._item else [], 1 if self._item else 0)
 
     async def create_subscription(self, data: dict):
@@ -104,7 +108,20 @@ class FakeRepo:
         end_at: datetime,
     ):
         del subscriber_id, start_at, end_at
-        return []
+        if self._item is None:
+            return []
+        subscription = MagicMock()
+        subscription.permission = 1
+        return [(self._item, subscription)]
+
+    async def archive_expired_subscribed_items(
+        self,
+        subscriber_id: UUID,
+        now_at: datetime,
+    ) -> int:
+        del subscriber_id, now_at
+        self.archive_expired_called += 1
+        return 0
 
     async def get_user_subscriptions(self, subscriber_id: UUID):
         del subscriber_id
@@ -376,3 +393,110 @@ async def test_update_maps_null_metadata_to_extra_metadata_null(
     assert "extra_metadata" in captured
     assert captured["extra_metadata"] is None
     assert "metadata" not in captured
+
+
+@pytest.mark.asyncio
+async def test_list_by_date_range_archives_expired_before_query(
+    mock_session: AsyncMock,
+    mock_inbox_repository: MagicMock,
+) -> None:
+    user_id = UUID("00000000-0000-0000-0000-000000000001")
+    item = _create_mock_schedule_item()
+    repo = FakeRepo(item)
+    service = ScheduleItemService(
+        repository=repo,
+        session=mock_session,
+        current_user=CurrentUser(id=user_id),
+        inbox_repository=mock_inbox_repository,
+    )
+
+    await service.list_by_date_range(
+        request=ScheduleItemListRequest(
+            start_at=datetime(2026, 2, 1, 0, 0, tzinfo=timezone.utc),
+            end_at=datetime(2026, 3, 1, 0, 0, tzinfo=timezone.utc),
+        ),
+    )
+
+    assert repo.archive_expired_called == 1
+
+
+@pytest.mark.asyncio
+async def test_list_by_date_range_commits_when_archived_changed(
+    mock_session: AsyncMock,
+    mock_inbox_repository: MagicMock,
+) -> None:
+    user_id = UUID("00000000-0000-0000-0000-000000000001")
+    item = _create_mock_schedule_item()
+
+    class ArchiveRepo(FakeRepo):
+        async def archive_expired_subscribed_items(
+            self,
+            subscriber_id: UUID,
+            now_at: datetime,
+        ) -> int:
+            del subscriber_id, now_at
+            self.archive_expired_called += 1
+            return 2
+
+    repo = ArchiveRepo(item)
+    service = ScheduleItemService(
+        repository=repo,
+        session=mock_session,
+        current_user=CurrentUser(id=user_id),
+        inbox_repository=mock_inbox_repository,
+    )
+
+    await service.list_by_date_range(
+        request=ScheduleItemListRequest(
+            start_at=datetime(2026, 2, 1, 0, 0, tzinfo=timezone.utc),
+            end_at=datetime(2026, 3, 1, 0, 0, tzinfo=timezone.utc),
+        ),
+    )
+
+    mock_session.commit.assert_awaited_once()
+
+
+@pytest.mark.asyncio
+async def test_list_by_date_range_rolls_back_when_query_fails_after_archive(
+    mock_session: AsyncMock,
+    mock_inbox_repository: MagicMock,
+) -> None:
+    user_id = UUID("00000000-0000-0000-0000-000000000001")
+    item = _create_mock_schedule_item()
+
+    class FailingRepo(FakeRepo):
+        async def archive_expired_subscribed_items(
+            self,
+            subscriber_id: UUID,
+            now_at: datetime,
+        ) -> int:
+            del subscriber_id, now_at
+            return 1
+
+        async def list_subscribed_items_by_date_range(
+            self,
+            subscriber_id: UUID,
+            start_at: datetime,
+            end_at: datetime,
+        ):
+            del subscriber_id, start_at, end_at
+            raise SQLAlchemyError("db unavailable")
+
+    service = ScheduleItemService(
+        repository=FailingRepo(item),
+        session=mock_session,
+        current_user=CurrentUser(id=user_id),
+        inbox_repository=mock_inbox_repository,
+    )
+
+    with pytest.raises(HTTPException) as exc_info:
+        await service.list_by_date_range(
+            request=ScheduleItemListRequest(
+                start_at=datetime(2026, 2, 1, 0, 0, tzinfo=timezone.utc),
+                end_at=datetime(2026, 3, 1, 0, 0, tzinfo=timezone.utc),
+            ),
+        )
+
+    assert exc_info.value.status_code == 503
+    mock_session.rollback.assert_awaited_once()
+    mock_session.commit.assert_not_awaited()

docs/plans/2026-03-18-reminder-alert-archival-plan.md

@@ -0,0 +1,449 @@
+# Reminder Alert Archival Implementation Plan
+
+> **For Claude:** REQUIRED SUB-SKILL: Use superpowers:executing-plans to implement this plan task-by-task.
+
+**Goal:** Deliver alarm-style reminder popups with cancel/snooze actions, 30s timeout auto-snooze, overlap handling, and archived/gray lifecycle consistency across Android and iOS.
+
+**Architecture:** Keep scheduling local on device (Flutter local notifications), persist user reminder actions with an app-side outbox for eventual backend sync, and use backend PATCH update for archive status as the source of truth. Add a backend safety net job to auto-archive expired active events so app-terminated scenarios still converge. Implement shared reminder payload and action handler with platform-specific notification configuration (Android full-screen intent, iOS category actions).
+
+**Tech Stack:** Flutter (`flutter_local_notifications`, existing calendar service), FastAPI schedule-items API, SQLAlchemy service layer, uv/pytest, Dart tests.
+
+---
+
+### Task 1: Update protocol and state semantics first
+
+**Files:**
+- Modify: `docs/protocols/` (create a new reminder interaction protocol doc or extend existing schedule protocol doc)
+- Modify: `docs/runtime/runtime-route.md`
+
+**Step 1: Write failing doc checks (manual checklist as fail-first gate)**
+
+```text
+Checklist fails until all are documented:
+1) cancel action semantics
+2) snooze +10 minutes semantics
+3) timeout(30s) = ignore -> snooze
+4) overlap aggregation semantics
+5) archive + gray render semantics
+6) iOS degraded behavior note
+```
+
+**Step 2: Run verification of checklist**
+
+Run: manual review (expect FAIL before edits)
+
+**Step 3: Write minimal protocol spec**
+
+Include exact payload keys and action enum:
+
+```json
+{
+  "eventId": "uuid",
+  "title": "string",
+  "startAt": "iso8601",
+  "endAt": "iso8601|null",
+  "timezone": "IANA",
+  "location": "string|null",
+  "notes": "string|null",
+  "color": "#RRGGBB|null",
+  "mode": "single|aggregate",
+  "aggregateIds": ["uuid"]
+}
+```
+
+Actions:
+- `cancel`: archive target events and stop reminders
+- `snooze_10m`: reschedule +10m, stop when `now >= endAt`
+- `timeout_30s`: same as `snooze_10m`
+
+**Step 4: Verify checklist passes**
+
+Run: manual review (expect PASS)
+
+**Step 5: Commit**
+
+```bash
+git add docs/protocols docs/runtime/runtime-route.md
+git commit -m "docs: define reminder interaction protocol and lifecycle semantics"
+```
+
+### Task 2: Add frontend reminder action models and payload codec
+
+**Files:**
+- Create: `apps/lib/features/calendar/reminders/models/reminder_payload.dart`
+- Create: `apps/lib/features/calendar/reminders/models/reminder_action.dart`
+- Test: `apps/test/features/calendar/reminders/models/reminder_payload_test.dart`
+
+**Step 1: Write the failing test**
+
+```dart
+test('round-trips payload with single and aggregate modes', () {
+  final payload = ReminderPayload(...);
+  expect(ReminderPayload.fromJson(payload.toJson()), payload);
+});
+```
+
+**Step 2: Run test to verify it fails**
+
+Run: `flutter test test/features/calendar/reminders/models/reminder_payload_test.dart`
+Expected: FAIL (type/file missing)
+
+**Step 3: Write minimal implementation**
+
+Implement immutable model + json codec + enum parser.
+
+**Step 4: Run test to verify it passes**
+
+Run: `flutter test test/features/calendar/reminders/models/reminder_payload_test.dart`
+Expected: PASS
+
+**Step 5: Commit**
+
+```bash
+git add apps/lib/features/calendar/reminders/models apps/test/features/calendar/reminders/models/reminder_payload_test.dart
+git commit -m "feat: add reminder payload and action models"
+```
+
+### Task 3: Refactor local notification service for action-capable reminders (Android + iOS)
+
+**Files:**
+- Modify: `apps/lib/core/notifications/local_notification_service.dart`
+- Modify: `apps/lib/main.dart`
+- Modify: `apps/ios/Runner/AppDelegate.swift`
+- Test: `apps/test/core/notifications/local_notification_service_test.dart`
+
+**Step 1: Write failing tests**
+
+```dart
+test('uses alarm-style Android details with actions and timeout', () async {});
+test('uses Darwin category actions for cancel/snooze', () async {});
+test('encodes payload in notification details', () async {});
+```
+
+**Step 2: Run tests to verify failure**
+
+Run: `flutter test test/core/notifications/local_notification_service_test.dart`
+Expected: FAIL
+
+**Step 3: Write minimal implementation**
+
+Implement:
+- Android notification actions: `cancel`, `snooze_10m`
+- `timeoutAfter: 30000`
+- payload serialization
+- iOS `DarwinNotificationCategory` + action identifiers
+- initialize callback registration for action responses
+
+Also keep existing full-screen alarm setup and exact alarm fallback behavior.
+
+**Step 4: Run tests to verify pass**
+
+Run: `flutter test test/core/notifications/local_notification_service_test.dart`
+Expected: PASS
+
+**Step 5: Commit**
+
+```bash
+git add apps/lib/core/notifications/local_notification_service.dart apps/lib/main.dart apps/ios/Runner/AppDelegate.swift apps/test/core/notifications/local_notification_service_test.dart
+git commit -m "feat: support actionable reminder notifications on android and ios"
+```
+
+### Task 4: Implement reminder action executor + local outbox for eventual consistency
+
+**Files:**
+- Create: `apps/lib/features/calendar/reminders/reminder_action_executor.dart`
+- Create: `apps/lib/features/calendar/reminders/reminder_outbox_store.dart`
+- Modify: `apps/lib/features/calendar/data/services/calendar_service.dart`
+- Test: `apps/test/features/calendar/reminders/reminder_action_executor_test.dart`
+
+**Step 1: Write failing tests**
+
+```dart
+test('cancel archives remotely and cancels local reminders', () async {});
+test('network failure writes outbox item and keeps local state updated', () async {});
+test('snooze reschedules +10m and stops after endAt', () async {});
+```
+
+**Step 2: Run tests (expect FAIL)**
+
+Run: `flutter test test/features/calendar/reminders/reminder_action_executor_test.dart`
+
+**Step 3: Write minimal implementation**
+
+Rules:
+- Cancel: local cancel now, enqueue archive API job, best-effort immediate PATCH
+- Snooze: schedule at `now + 10m`, if `next >= endAt` then archive path
+- Timeout action uses same path as snooze
+
+**Step 4: Re-run tests (expect PASS)**
+
+Run: `flutter test test/features/calendar/reminders/reminder_action_executor_test.dart`
+
+**Step 5: Commit**
+
+```bash
+git add apps/lib/features/calendar/reminders apps/lib/features/calendar/data/services/calendar_service.dart apps/test/features/calendar/reminders/reminder_action_executor_test.dart
+git commit -m "feat: add reminder action executor with offline outbox"
+```
+
+### Task 5: Add startup reconciliation (replay outbox + rebuild reminders)
+
+**Files:**
+- Modify: `apps/lib/core/startup/auth_session_bootstrapper.dart`
+- Modify: `apps/lib/main.dart`
+- Test: `apps/test/core/startup/auth_session_bootstrapper_test.dart`
+
+**Step 1: Write failing tests**
+
+```dart
+test('replays pending reminder actions after login', () async {});
+test('rebuilds reminders after outbox replay', () async {});
+```
+
+**Step 2: Run tests (expect FAIL)**
+
+Run: `flutter test test/core/startup/auth_session_bootstrapper_test.dart`
+
+**Step 3: Write minimal implementation**
+
+In authenticated startup flow:
+1) replay outbox
+2) fetch events with overlap semantics (active and not ended)
+3) rebuild active reminders with compensation scheduling:
+   - `now < remindAt`: schedule at remindAt
+   - `remindAt <= now < endAt`: schedule immediate compensation reminder (e.g. +5s)
+   - `now >= endAt`: archive path
+4) enforce reminder dedupe key to avoid duplicate reminders after reinstall/restart
+
+**Step 4: Re-run tests (expect PASS)**
+
+Run: `flutter test test/core/startup/auth_session_bootstrapper_test.dart`
+
+**Step 5: Commit**
+
+```bash
+git add apps/lib/core/startup/auth_session_bootstrapper.dart apps/lib/main.dart apps/test/core/startup/auth_session_bootstrapper_test.dart
+git commit -m "feat: replay reminder outbox on startup"
+```
+
+### Task 6: Implement overlap strategy (aggregate popup)
+
+**Files:**
+- Create: `apps/lib/features/calendar/reminders/reminder_overlap_policy.dart`
+- Modify: `apps/lib/core/notifications/local_notification_service.dart`
+- Test: `apps/test/features/calendar/reminders/reminder_overlap_policy_test.dart`
+
+**Step 1: Write failing tests**
+
+```dart
+test('groups reminders whose fire time falls into same minute bucket', () {});
+test('creates aggregate payload with top-3 preview and ids', () {});
+```
+
+**Step 2: Run tests (expect FAIL)**
+
+Run: `flutter test test/features/calendar/reminders/reminder_overlap_policy_test.dart`
+
+**Step 3: Write minimal implementation**
+
+Policy:
+- same minute bucket => one aggregate popup
+- actions apply to all members by default
+- payload includes aggregateIds
+
+**Step 4: Re-run tests (expect PASS)**
+
+Run: `flutter test test/features/calendar/reminders/reminder_overlap_policy_test.dart`
+
+**Step 5: Commit**
+
+```bash
+git add apps/lib/features/calendar/reminders/reminder_overlap_policy.dart apps/lib/core/notifications/local_notification_service.dart apps/test/features/calendar/reminders/reminder_overlap_policy_test.dart
+git commit -m "feat: add overlap aggregation policy for reminders"
+```
+
+### Task 7: Render archived events as gray in calendar UI
+
+**Files:**
+- Modify: `apps/lib/features/calendar/ui/**` (event color resolution points)
+- Test: `apps/test/features/calendar/ui/*archived*test.dart` (new if missing)
+
+**Step 1: Write failing tests**
+
+```dart
+testWidgets('archived events use gray token color', (tester) async {});
+```
+
+**Step 2: Run tests (expect FAIL)**
+
+Run: `flutter test test/features/calendar/ui`
+
+**Step 3: Write minimal implementation**
+
+Rule:
+- if `status == archived`, force token-based gray (do not mutate persisted `metadata.color`)
+
+**Step 4: Re-run tests (expect PASS)**
+
+Run: `flutter test test/features/calendar/ui`
+
+**Step 5: Commit**
+
+```bash
+git add apps/lib/features/calendar/ui apps/test/features/calendar/ui
+git commit -m "feat: render archived calendar events in gray"
+```
+
+### Task 8: Backend reuse route + add expired-event auto-archive safety job
+
+**Files:**
+- Modify: `backend/src/v1/schedule_items/service.py` (if needed for stricter status transition)
+- Modify: `backend/src/v1/schedule_items/repository.py` (range query to overlap query)
+- Create: `backend/src/jobs/schedule_item_archive_job.py` (or existing worker module path)
+- Modify: worker scheduler registration file under `backend/src/core/celery/` (actual existing path)
+- Test: `backend/tests/unit/v1/schedule_items/test_service.py`
+- Test: `backend/tests/unit/v1/schedule_items/test_repository.py`
+- Test: `backend/tests/unit/jobs/test_schedule_item_archive_job.py`
+
+**Step 1: Write failing tests**
+
+```python
+def test_patch_status_archived_allowed_for_owner() -> None: ...
+def test_list_by_overlap_includes_started_but_not_ended_items() -> None: ...
+def test_archive_job_marks_expired_active_items_archived() -> None: ...
+```
+
+**Step 2: Run tests (expect FAIL)**
+
+Run: `uv run pytest backend/tests/unit/v1/schedule_items/test_service.py backend/tests/unit/jobs/test_schedule_item_archive_job.py -q`
+
+**Step 3: Write minimal implementation**
+
+Implement/verify:
+- route reuse: PATCH status archived works as-is for authorized user
+- overlap query for bootstrap: `start_at <= window_end AND (end_at IS NULL OR end_at >= window_start)` and `status=active`
+- periodic archive job: `end_at < now and status=active -> archived`
+
+**Step 4: Re-run tests (expect PASS)**
+
+Run: `uv run pytest backend/tests/unit/v1/schedule_items/test_service.py backend/tests/unit/jobs/test_schedule_item_archive_job.py -q`
+
+**Step 5: Commit**
+
+```bash
+git add backend/src backend/tests
+git commit -m "feat: add expired schedule auto-archive safety job"
+```
+
+### Task 9: End-to-end verification and release notes
+
+**Files:**
+- Modify: `docs/runtime/runtime-runbook.md`
+- Modify: `docs/protocols/` reminder doc from Task 1
+
+**Step 1: Run frontend verification**
+
+Run:
+- `flutter analyze`
+- `flutter test`
+
+Expected: PASS
+
+**Step 2: Run backend verification**
+
+Run:
+- `uv run pytest backend/tests/unit/v1/schedule_items -q`
+- `uv run pytest backend/tests/unit/jobs/test_schedule_item_archive_job.py -q`
+
+Expected: PASS
+
+**Step 3: Manual device matrix**
+
+Android:
+- app foreground/background/terminated for cancel/snooze/timeout
+- overlap popup behavior
+- endAt stop reminder + archive
+
+iOS:
+- action button behavior in foreground/background/terminated
+- timeout -> snooze behavior after relaunch sync
+- archive sync after offline period
+
+**Step 4: Document operational caveats**
+
+Include:
+- Android full-screen may degrade to heads-up by OEM policy
+- iOS does not guarantee Android-style full-screen alarm behavior
+- eventual consistency via outbox + startup replay + backend safety job
+
+**Step 5: Commit**
+
+```bash
+git add docs/runtime/runtime-runbook.md docs/protocols
+git commit -m "docs: add reminder action runbook and platform caveats"
+```
+
+## Notes on iOS parity
+
+- iOS supports actionable local notifications via Darwin categories; implement `cancel` and `snooze_10m` action identifiers with same payload model.
+- iOS cannot guarantee Android-like forced full-screen alarm takeover; use lock-screen alert + sound + action buttons as equivalent UX.
+- App-terminated network callback reliability is lower on iOS; therefore outbox + startup replay is mandatory for parity.
+
+## Data contracts and constraints (added)
+
+### Reminder payload contract
+
+```json
+{
+  "eventId": "uuid",
+  "title": "string",
+  "startAt": "iso8601-with-offset",
+  "endAt": "iso8601-with-offset|null",
+  "timezone": "IANA",
+  "location": "string|null",
+  "notes": "string|null",
+  "color": "#RRGGBB|null",
+  "mode": "single|aggregate",
+  "aggregateIds": ["uuid"]
+}
+```
+
+Constraints:
+- `eventId` required and valid UUID.
+- `startAt` must be timezone-aware datetime.
+- `mode=aggregate` requires `aggregateIds.length >= 2`.
+- Payload versioning should be explicit if schema evolves.
+
+### Reminder outbox contract
+
+```json
+{
+  "opId": "uuid",
+  "eventId": "uuid",
+  "action": "cancel|snooze_10m|timeout_30s|auto_archive",
+  "targetStatus": "archived|null",
+  "occurredAt": "iso8601-with-offset",
+  "retryCount": 0,
+  "nextRetryAt": "iso8601-with-offset|null",
+  "state": "pending|done|dead",
+  "lastError": "string|null"
+}
+```
+
+Constraints:
+- Idempotency key: `(eventId, action, occurredAtBucket)`.
+- Exponential backoff retries with capped max attempts.
+- `cancel` and `auto_archive` both map to backend `status=archived` PATCH.
+
+### Uniqueness and dedupe rules
+
+- Notification identity uses deterministic key per event+cycle: `hash(eventId + cycleStartEpochMinutes + mode)`.
+- Before scheduling any reminder, cancel existing pending reminders for same dedupe key.
+- On bootstrap/reinstall, dedupe against local pending requests and outbox state before creating new schedules.
+- Compensation reminder (`remindAt <= now < endAt`) must generate exactly one immediate reminder per cycle window.
+
+## Rollback plan
+
+1) Disable action handling by feature flag while keeping plain reminders.
+2) Keep backend PATCH status route unchanged (safe rollback path).
+3) Pause auto-archive job if unexpected archival spikes occur.

docs/protocols/agent/api-endpoints.md

@@ -76,6 +76,7 @@ Base URL: `/api/v1/agent`
 - `200 OK`
 - `Content-Type: text/event-stream`
 - 事件类型与字段见 `docs/protocols/agent/sse-events.md`
+- usage 审计与成本回退策略见 `docs/protocols/agent/sse-events.md`（5) Usage 审计协议）
 - 空闲时会发送 keep-alive 注释行 `: keep-alive`
 
 ### 错误码

docs/protocols/agent/sse-events.md

@@ -197,7 +197,107 @@ data: <json>
 
 `inputTokens`、`outputTokens`、`cost`、`latencyMs`、`model` 属于后端内部统计字段，不在 SSE 对外协议中暴露。
 
-### 3.5 快照事件
+---
+
+## 5) Usage 审计协议（后端内部）
+
+本节描述后端对 LLM usage 的内部审计与计费策略。该协议用于数据库持久化、成本统计与运行观测，不对 SSE 外部协议直接暴露。
+
+### 5.1 当前厂商范围
+
+- DashScope（Qwen）
+- DeepSeek
+
+当前实现仅针对上述两家做深度适配。
+
+### 5.2 原始字段采集（Provider -> Runtime）
+
+`TrackingChatModel` 会优先读取 provider 直接字段，读取不到时再从 metadata 补齐。
+
+优先级如下：
+
+1. 直接字段（优先）
+   - `usage.input_tokens`
+   - `usage.output_tokens`
+   - `usage.total_tokens`
+   - `usage.time`（秒）
+   - `usage.cost`（若存在）
+2. metadata 字段（补齐）
+   - `metadata.prompt_tokens`
+   - `metadata.completion_tokens`
+   - `metadata.total_tokens`
+   - `metadata.prompt_tokens_details.cached_tokens`
+   - `metadata.prompt_cache_hit_tokens`
+   - `metadata.prompt_cache_miss_tokens`
+   - `metadata.completion_tokens_details.reasoning_tokens`
+   - `metadata.cost` / `metadata.total_cost`（若存在）
+
+### 5.3 归一化后的内部 usage_summary 字段
+
+`TrackingChatModel.usage_summary()` 当前输出：
+
+- `input_tokens`
+- `output_tokens`
+- `total_tokens`
+- `latency_ms`（由 `usage.time * 1000` 转换）
+- `cached_prompt_tokens`
+- `prompt_cache_hit_tokens`
+- `prompt_cache_miss_tokens`
+- `reasoning_tokens`
+- `direct_cost`
+- `direct_cost_observed`（0/1）
+- `direct_cost_complete`（0/1）
+- `model_call_records`
+- `usage_records`
+- `direct_cost_records`
+- `cost_source`（`provider` | `catalog_fallback`）
+
+### 5.4 成本计算策略（严谨优先）
+
+核心原则：**能直接用 provider 返回就直接用；缺失才 fallback。**
+
+`LiteLLMService.build_usage_metadata()` 执行规则：
+
+1. 仅当以下条件同时满足时使用 provider 直出成本：
+   - `usageComplete == true`（`model_call_records == usage_records`）
+   - `direct_cost_observed == 1`
+   - `direct_cost_complete == 1`
+   - `direct_cost` 为有效非负数
+2. 否则使用 catalog 价格回退计算（`calculate_cost`）
+
+### 5.5 Fallback 计费细节
+
+- 档位选择：按 `prompt_tokens` 命中 `pricing_tiers.max_prompt_tokens`
+- 公式：
+
+```text
+cost = uncached_prompt_tokens * input_cost_per_token
+     + cached_prompt_tokens   * cached_token_rate
+     + completion_tokens      * output_cost_per_token
+```
+
+- `cached_token_rate` 规则：
+  - 若 tier 配置了 `cache_hit_cost_per_token` 且 > 0，使用该值
+  - 否则回退为 `input_cost_per_token`
+
+### 5.6 内部 costSource 语义
+
+- `provider`: 使用 provider 直接成本
+- `catalog_fallback`: 正常使用价格表回退
+- `catalog_fallback_incomplete_provider_cost`: provider 返回了部分 direct cost，但不完整，回退价格表
+- `incomplete_usage_fallback`: usage 本身不完整，回退价格表
+
+### 5.7 DeepSeek / DashScope 当前观测到的返回特征
+
+根据当前线上探针与运行结果：
+
+- 两家都稳定返回：`input_tokens`、`output_tokens`、`time`
+- `usage.total_tokens` 顶层可能为空，但 `metadata.total_tokens` 可用
+- DeepSeek 常见 `prompt_tokens_details.cached_tokens`、`prompt_cache_hit_tokens`、`prompt_cache_miss_tokens`
+- DashScope 常见 `completion_tokens_details.reasoning_tokens`（可能为 `null`）
+- 两家当前都未稳定提供直接 `cost` 字段，因此多数场景为 catalog fallback
+
+## 6) 快照事件
 
 编码器支持以下 AG-UI 类型映射：
 
@@ -208,7 +308,7 @@ data: <json>
 
 ---
 
-## 4) 字段命名约定
+## 7) 字段命名约定
 
 - 事件顶层通用字段使用 AG-UI 风格：`type`、`threadId`、`runId`
 - 部分业务字段沿运行时模型历史命名保留下划线：

docs/protocols/calendar/reminder-alert-lifecycle.md

@@ -0,0 +1,143 @@
+# Calendar Reminder Alert Lifecycle Protocol
+
+## Version
+
+- Current: `1.0`
+- Status: Draft
+
+---
+
+## Goal
+
+定义日程提醒弹窗在 Android/iOS 的统一行为语义，覆盖提醒触发、用户操作、超时、离线补偿、归档与重装恢复，确保多端一致性和可恢复性。
+
+---
+
+## Canonical Rules
+
+1. 提醒弹窗动作语义跨平台一致：`cancel`、`snooze_10m`、`timeout_30s`。
+2. `timeout_30s` 语义固定为忽略当前弹窗并按 10 分钟后再次提醒，不直接归档。
+3. `cancel` 必须归档对应日程（`status=archived`）。
+4. 到达事件结束时间后（`now >= end_at`）必须停止提醒并归档。
+5. 归档后的 UI 渲染必须灰色显示；不强制改写原始 metadata 颜色。
+6. 前端动作上报后端采用最终一致性：本地 outbox + 重放机制。
+
+---
+
+## Reminder Payload Contract
+
+```json
+{
+  "eventId": "uuid",
+  "title": "string",
+  "startAt": "iso8601-with-offset",
+  "endAt": "iso8601-with-offset|null",
+  "timezone": "IANA",
+  "location": "string|null",
+  "notes": "string|null",
+  "color": "#RRGGBB|null",
+  "mode": "single|aggregate",
+  "aggregateIds": ["uuid"],
+  "version": 1
+}
+```
+
+### Constraints
+
+- `eventId` 必填且为 UUID。
+- `startAt` 必须带时区偏移。
+- `mode=aggregate` 时，`aggregateIds` 至少包含 2 个 id。
+- `version` 必填，用于后续协议升级兼容。
+
+---
+
+## Action Contract
+
+动作枚举：
+
+- `cancel`: 用户取消提醒并归档事件
+- `snooze_10m`: 用户点击稍后提醒，重排到 `now + 10m`
+- `timeout_30s`: 用户 30s 未处理，按 `snooze_10m` 处理
+- `auto_archive`: 系统判定事件已过期，自动归档
+
+---
+
+## Outbox Contract (Frontend)
+
+```json
+{
+  "opId": "uuid",
+  "eventId": "uuid",
+  "action": "cancel|snooze_10m|timeout_30s|auto_archive",
+  "targetStatus": "archived|null",
+  "occurredAt": "iso8601-with-offset",
+  "retryCount": 0,
+  "nextRetryAt": "iso8601-with-offset|null",
+  "state": "pending|done|dead",
+  "lastError": "string|null"
+}
+```
+
+### Constraints
+
+- 幂等键：`(eventId, action, occurredAtBucket)`。
+- 重试策略：指数退避，最大重试次数可配置。
+- `cancel` 和 `auto_archive` 都映射到后端 `PATCH status=archived`。
+- Outbox 记录必须本地持久化，App 重启后可恢复。
+
+---
+
+## Scheduling and Compensation Rules
+
+### Normal schedule
+
+- `remindAt = startAt - reminderMinutes`
+
+### Bootstrap/reinstall compensation
+
+启动重建时对每个 active 事件执行：
+
+1. `now < remindAt`：按 `remindAt` 正常调度。
+2. `remindAt <= now < endAt`：立刻补偿提醒（建议 `+5s`），然后进入 10 分钟节奏。
+3. `now >= endAt`：不再提醒，走归档流程。
+
+---
+
+## Uniqueness and Dedupe Rules
+
+- 通知唯一键：`hash(eventId + cycleStartEpochMinutes + mode)`。
+- 每次创建提醒前必须取消同 dedupe key 的旧提醒（upsert 语义）。
+- 补偿提醒在同一 cycle 窗口内最多触发一次。
+- 启动恢复时要同时参考 pending notification 和 outbox 状态，避免重复调度。
+
+---
+
+## Overlap Rule
+
+- 同一分钟内多个提醒合并为一个 aggregate 弹窗。
+- aggregate 弹窗默认操作作用于全部成员事件。
+- aggregate 负载中必须包含 `aggregateIds` 以支持后续批处理。
+
+---
+
+## Backend Contract Reuse
+
+- 复用现有接口：`PATCH /schedule-items/{item_id}`，请求体传 `{"status":"archived"}`。
+- 建议提供/改造 overlap 查询语义用于启动补偿：
+  - `start_at <= window_end`
+  - `end_at IS NULL OR end_at >= window_start`
+  - `status=active`
+
+---
+
+## Platform Notes
+
+### Android
+
+- 优先 full-screen intent；系统可能因策略降级为 heads-up/横幅。
+- 声音和振动受通知通道及系统设置影响。
+
+### iOS
+
+- 支持动作按钮与本地提醒语义。
+- 不保证 Android 式强制全屏闹钟弹窗；以锁屏/横幅提醒为主。

docs/todo/2026-03-17-asr.md

@@ -1 +1,5 @@
-当前项目有语音识别功能，但是语音识别的cost成本计算没有实现。目前我们用的模型是fun-asr-realtime-2026-02-28，价格是0.00033元/每秒。我希望把它做到backend/src/core/config/static/database/llm_catalog.yaml，加一个asr字段，引入model_code代替原agent router里的硬编码，通过加载配置获取模型信息和报价，然后根据后端路由接收到的音频长度然后来估算价格，或者看看dashscope的sdk是否会返回消耗token金额，将这个token金额看看如何审计
+- 当前项目有语音识别功能，但是语音识别的cost成本计算没有实现。目前我们用的模型是fun-asr-realtime-2026-02-28，价格是0.00033元/每秒。我希望把它做到backend/src/core/config/static/database/llm_catalog.yaml，加一个asr字段，引入model_code代替原agent router里的硬编码，通过加载配置获取模型信息和报价，然后根据后端路由接收到的音频长度然后来估算价格，或者看看dashscope的sdk是否会返回消耗token金额，将这个token金额看看如何审计
+- 路由细分，方便agent url的导航跳转
+- agent模式重构
+- 日历导出和导入
+- 手机号注册、登录

pyproject.toml

@@ -9,7 +9,6 @@ dependencies = [
     "asyncpg>=0.31.0",
     "email-validator>=2.3.0",
     "fastapi>=0.128.0",
-    "litellm>=1.52.0",
     "pydantic>=2.11.0",
     "pydantic-settings>=2.10.0",
     "pyjwt>=2.10.1",