feat: 二级页面色彩刷新 + 用药/通知/设备重构 + 后端健康档案/通知管线增强 + 大量测试

## 后端
- 健康档案: 新增手术状态字段 + EF 迁移; HealthArchiveService 新增查询方法
- 健康记录: HealthRecordService 新增批量/统计方法; 契约扩展
- 用药: 新增 MedicationScheduleStatus 枚举; MedicationService 排班逻辑调整
- 通知: EfUserNotificationPipeline 重构; 新增 EfReminderCatchUpService; 通知管线支持更多场景
- 用户: UserService 账号删除逻辑; 新增 local_account_file_cleanup; EfUserRepository 扩展
- AI: medication_agent_handler 微调; prompt_manager 优化; AiConversationService 上下文处理
- Endpoint: doctor/medication/exercise/health/notification/user 等多接口调整
- BackgroundService: health_record_reminder_service 重构, 提醒补漏逻辑
- 测试: 新增 account_deletion/doctor_endpoint/medication_schedule/medication_update/prompt_manager 测试

## 前端
- UI 系统: app_theme 大幅重构; app_colors/app_design_tokens/app_module_visuals 调整; 二级页面色彩刷新
- 主页: home_page 背景渐变 + 消息列表提取 _HomeMessages + 通知检查逻辑; chat_messages_view 全面重构
- 用药: medication_list/edit/checkin 三页重构, 新增 medication_ui_logic 抽取
- 通知: notification_prefs_page 重构, 新增 notification_prefs_logic; notification_center 优化
- 设备: device_management 重构, 新增 device_sync_ui_logic; device_scan 优化
- 趋势图: trend_page 大幅重构
- 登录: login_page 重构
- 个人资料: 新增 profile_edit_page; profile_page 优化
- 运动: 新增 exercise/ 目录 + care_plan_ui_logic
- 其他: remaining_pages/report_pages/health_drawer/admin/doctor 等多页面调整
- 组件: common_widgets/app_empty_state/app_error_state/app_future_view/app_toast/ai_content 优化
- Provider: chat_provider/consultation_provider/data_providers/auth_provider 调整
- AndroidManifest: 移除多余权限
- 测试: 新增 ai_content/care_plan/home_message/login_flow/medication_checkin/medication_ui/notification_prefs/profile_device/secondary_page/swipe_delete 等大量测试

## 文档
- 新增 ui-design-system.md 设计系统文档
- 新增 secondary-page-color-refresh 计划 + specs 目录

health_app/lib/providers/auth_provider.dart

@@ -11,6 +11,8 @@ class UserInfo {
   final String role;
   final String? name;
   final String? avatarUrl;
+  final String? gender;
+  final String? birthDate;
 
   UserInfo({
     required this.id,
@@ -18,6 +20,8 @@ class UserInfo {
     this.role = 'User',
     this.name,
     this.avatarUrl,
+    this.gender,
+    this.birthDate,
   });
 }
 
@@ -112,6 +116,8 @@ class AuthNotifier extends Notifier<AuthState> {
             role: user['role'] ?? state.user?.role ?? 'User',
             name: user['name'],
             avatarUrl: user['avatarUrl'],
+            gender: user['gender'],
+            birthDate: user['birthDate']?.toString(),
           ),
         );
       }

health_app/lib/providers/chat_provider.dart

@@ -40,31 +40,39 @@ enum ActiveAgent {
   exercise,
 }
 
+const _keepConversationId = Object();
+
 class ChatState {
   final ActiveAgent activeAgent;
   final List<ChatMessage> messages;
   final String? conversationId;
   final bool isStreaming;
   final String? thinkingText;
+  final bool isViewingHistory;
   const ChatState({
     this.activeAgent = ActiveAgent.default_,
     this.messages = const [],
     this.conversationId,
     this.isStreaming = false,
     this.thinkingText,
+    this.isViewingHistory = false,
   });
   ChatState copyWith({
     ActiveAgent? activeAgent,
     List<ChatMessage>? messages,
-    String? conversationId,
+    Object? conversationId = _keepConversationId,
     bool? isStreaming,
     String? thinkingText,
+    bool? isViewingHistory,
   }) => ChatState(
     activeAgent: activeAgent ?? this.activeAgent,
     messages: messages ?? this.messages,
-    conversationId: conversationId ?? this.conversationId,
+    conversationId: identical(conversationId, _keepConversationId)
+        ? this.conversationId
+        : conversationId as String?,
     isStreaming: isStreaming ?? this.isStreaming,
     thinkingText: thinkingText ?? this.thinkingText,
+    isViewingHistory: isViewingHistory ?? this.isViewingHistory,
   );
 }
 
@@ -77,6 +85,7 @@ class ChatNotifier extends Notifier<ChatState> {
   Completer<void>? _streamDone;
   ActiveAgent? _lastTriggeredAgent;
   Timer? _agentTapLockTimer;
+  bool _loadingConversation = false;
 
   /// 重置整个会话：取消正在进行的 SSE，清空消息和会话 ID。
   /// 历史记录页一键清空 / 删除当前会话时调用。
@@ -162,42 +171,17 @@ class ChatNotifier extends Notifier<ChatState> {
     );
   }
 
-  /// 根据 AI 调用的工具自动切换智能体胶囊
-  void _switchAgentByTool(String tool) {
-    ActiveAgent? agent;
-    switch (tool) {
-      case 'record_health_data':
-      case 'query_health_records':
-        agent = ActiveAgent.health;
-        break;
-      case 'estimate_food_text':
-        agent = ActiveAgent.diet;
-        break;
-      case 'manage_medication':
-        agent = ActiveAgent.medication;
-        break;
-      case 'manage_exercise':
-        agent = ActiveAgent.exercise;
-        break;
-      case 'request_doctor':
-        agent = ActiveAgent.consultation;
-        break;
-      case 'analyze_report':
-        agent = ActiveAgent.report;
-        break;
-    }
-    if (agent != null) {
-      state = state.copyWith(activeAgent: agent);
-    }
-  }
-
   Future<String?> loadConversation(String convId) async {
+    if (state.isStreaming) return '小脉正在回复，请稍后再切换对话';
+    if (_loadingConversation) return '正在加载其他对话，请稍候';
+    _loadingConversation = true;
     await _cancelActiveStream();
     _cancelPendingAgentWelcome();
     try {
       final api = ref.read(apiClientProvider);
       final res = await api.get('/api/ai/conversations/$convId');
       final rawMessages = (res.data['data'] as List?) ?? [];
+      if (rawMessages.isEmpty) return '该对话已不存在，请刷新记录';
       final messages = rawMessages.map((m) {
         final map = m as Map<String, dynamic>;
         final role = map['role']?.toString().toLowerCase() == 'user'
@@ -218,14 +202,18 @@ class ChatNotifier extends Notifier<ChatState> {
         );
       }).toList();
 
-      state = state.copyWith(
+      state = ChatState(
         messages: messages,
         conversationId: convId,
         activeAgent: ActiveAgent.default_,
+        isViewingHistory: true,
       );
+      _lastTriggeredAgent = null;
       return null;
     } catch (_) {
       return '会话加载失败，请稍后重试';
+    } finally {
+      _loadingConversation = false;
     }
   }
 
@@ -234,6 +222,7 @@ class ChatNotifier extends Notifier<ChatState> {
   /// 重复点击同一胶囊不重复弹卡片
   void triggerAgent(ActiveAgent agent, String label) {
     if (_agentTapLockTimer != null || _lastTriggeredAgent == agent) return;
+    _resumeConversationFromHistory();
     _lastTriggeredAgent = agent;
 
     final now = DateTime.now();
@@ -272,6 +261,7 @@ class ChatNotifier extends Notifier<ChatState> {
     if (!await file.exists()) return;
     _lastTriggeredAgent = null;
     _cancelPendingAgentWelcome();
+    _resumeConversationFromHistory();
 
     // 先显示用户消息（本地显示图片路径）
     final userMsg = ChatMessage(
@@ -338,6 +328,7 @@ class ChatNotifier extends Notifier<ChatState> {
     if (!await file.exists()) return;
     _lastTriggeredAgent = null;
     _cancelPendingAgentWelcome();
+    _resumeConversationFromHistory();
 
     final userMsg = ChatMessage(
       id: '${DateTime.now().millisecondsSinceEpoch}',
@@ -392,6 +383,7 @@ class ChatNotifier extends Notifier<ChatState> {
     if (text.trim().isEmpty || state.isStreaming) return;
     _lastTriggeredAgent = null;
     _cancelPendingAgentWelcome();
+    _resumeConversationFromHistory();
 
     final userMsg = ChatMessage(
       id: '${DateTime.now().millisecondsSinceEpoch}',
@@ -470,6 +462,11 @@ class ChatNotifier extends Notifier<ChatState> {
     }
   }
 
+  void _resumeConversationFromHistory() {
+    if (!state.isViewingHistory) return;
+    state = state.copyWith(isViewingHistory: false);
+  }
+
   Future<void> _cancelActiveStream() async {
     await _subscription?.cancel();
     _subscription = null;
@@ -496,7 +493,10 @@ class ChatNotifier extends Notifier<ChatState> {
     final a = j['action'] as String?;
     switch (a) {
       case 'conversation_id':
-        state = state.copyWith(conversationId: j['data']?.toString());
+        state = state.copyWith(
+          conversationId: j['data']?.toString(),
+          isViewingHistory: false,
+        );
       case 'answer':
         final messageType = j['type'] as String? ?? 'text';
         aiMsg.type = _parseMessageType(messageType);
@@ -510,8 +510,6 @@ class ChatNotifier extends Notifier<ChatState> {
         state = state.copyWith(thinkingText: j['message'] as String?);
       case 'tool_result':
         final tool = j['tool'] as String? ?? '';
-        // 根据 AI 调用的工具自动切换智能体胶囊
-        _switchAgentByTool(tool);
         if (tool == 'record_health_data') {
           ref.invalidate(latestHealthProvider);
         }

health_app/lib/providers/consultation_provider.dart

@@ -63,26 +63,26 @@ class ConsultationChatState {
     bool? isConnected,
     int? quotaRemaining,
     int? quotaTotal,
-  }) =>
-      ConsultationChatState(
-        consultationId: consultationId ?? this.consultationId,
-        doctorId: doctorId ?? this.doctorId,
-        doctorName: doctorName ?? this.doctorName,
-        doctorTitle: doctorTitle ?? this.doctorTitle,
-        doctorDepartment: doctorDepartment ?? this.doctorDepartment,
-        status: status ?? this.status,
-        messages: messages ?? this.messages,
-        isLoading: isLoading ?? this.isLoading,
-        isSending: isSending ?? this.isSending,
-        isConnected: isConnected ?? this.isConnected,
-        quotaRemaining: quotaRemaining ?? this.quotaRemaining,
-        quotaTotal: quotaTotal ?? this.quotaTotal,
-      );
+  }) => ConsultationChatState(
+    consultationId: consultationId ?? this.consultationId,
+    doctorId: doctorId ?? this.doctorId,
+    doctorName: doctorName ?? this.doctorName,
+    doctorTitle: doctorTitle ?? this.doctorTitle,
+    doctorDepartment: doctorDepartment ?? this.doctorDepartment,
+    status: status ?? this.status,
+    messages: messages ?? this.messages,
+    isLoading: isLoading ?? this.isLoading,
+    isSending: isSending ?? this.isSending,
+    isConnected: isConnected ?? this.isConnected,
+    quotaRemaining: quotaRemaining ?? this.quotaRemaining,
+    quotaTotal: quotaTotal ?? this.quotaTotal,
+  );
 }
 
 final consultationChatProvider =
     NotifierProvider<ConsultationChatNotifier, ConsultationChatState>(
-        ConsultationChatNotifier.new);
+      ConsultationChatNotifier.new,
+    );
 
 class ConsultationChatNotifier extends Notifier<ConsultationChatState> {
   HubConnection? _hub;
@@ -108,7 +108,10 @@ class ConsultationChatNotifier extends Notifier<ConsultationChatState> {
       );
 
       // 创建问诊会话
-      final createRes = await api.post('/api/consultations', data: {'doctorId': doctorId});
+      final createRes = await api.post(
+        '/api/consultations',
+        data: {'doctorId': doctorId},
+      );
       final consultationId = createRes.data['data']?['id']?.toString() ?? '';
 
       // 加载历史消息
@@ -130,7 +133,10 @@ class ConsultationChatNotifier extends Notifier<ConsultationChatState> {
           isLoading: false,
         );
       } else {
-        state = state.copyWith(consultationId: consultationId, isLoading: false);
+        state = state.copyWith(
+          consultationId: consultationId,
+          isLoading: false,
+        );
       }
 
       // 建立 SignalR 连接
@@ -156,21 +162,26 @@ class ConsultationChatNotifier extends Notifier<ConsultationChatState> {
         if (msgConsultationId != consultationId) return;
 
         final msg = ConsultationMsg(
-          id: data['id']?.toString() ?? DateTime.now().millisecondsSinceEpoch.toString(),
+          id:
+              data['id']?.toString() ??
+              DateTime.now().millisecondsSinceEpoch.toString(),
           senderType: data['senderType']?.toString() ?? 'Ai',
           senderName: data['senderName']?.toString(),
           content: data['content']?.toString() ?? '',
           createdAt: data['createdAt'] != null
-              ? DateTime.tryParse(data['createdAt'].toString()) ?? DateTime.now()
+              ? DateTime.tryParse(data['createdAt'].toString()) ??
+                    DateTime.now()
               : DateTime.now(),
         );
 
         // 去重：按 ID + 内容+时间窗口（防止本地消息和服务器消息重复）
-        final isDuplicate = state.messages.any((m) =>
-            m.id == msg.id ||
-            (m.senderType == msg.senderType &&
-             m.content == msg.content &&
-             msg.createdAt.difference(m.createdAt).inSeconds.abs() < 3));
+        final isDuplicate = state.messages.any(
+          (m) =>
+              m.id == msg.id ||
+              (m.senderType == msg.senderType &&
+                  m.content == msg.content &&
+                  msg.createdAt.difference(m.createdAt).inSeconds.abs() < 3),
+        );
         if (!isDuplicate) {
           state = state.copyWith(messages: [...state.messages, msg]);
         }
@@ -191,14 +202,17 @@ class ConsultationChatNotifier extends Notifier<ConsultationChatState> {
       final res = await api.get('/api/doctors');
       final list = (res.data['data'] as List?) ?? [];
       final doc = list.cast<Map<String, dynamic>>().firstWhere(
-          (d) => d['id']?.toString() == doctorId,
-          orElse: () => <String, dynamic>{});
+        (d) => d['id']?.toString() == doctorId,
+        orElse: () => <String, dynamic>{},
+      );
       state = state.copyWith(
         doctorName: doc['name']?.toString() ?? '',
         doctorTitle: doc['title']?.toString() ?? '',
         doctorDepartment: doc['department']?.toString() ?? '',
       );
-    } catch (e) { log('[Consultation]请求失败: $e'); }
+    } catch (e) {
+      log('[Consultation]请求失败: $e');
+    }
   }
 
   Future<void> _loadMessages(String consultationId) async {
@@ -213,17 +227,25 @@ class ConsultationChatNotifier extends Notifier<ConsultationChatState> {
           senderType: map['senderType']?.toString() ?? 'User',
           senderName: map['senderName']?.toString(),
           content: map['content']?.toString() ?? '',
-          createdAt: DateTime.tryParse(map['createdAt']?.toString() ?? '') ?? DateTime.now(),
+          createdAt:
+              DateTime.tryParse(map['createdAt']?.toString() ?? '') ??
+              DateTime.now(),
         );
       }).toList();
       if (msgs.isNotEmpty) {
         state = state.copyWith(messages: msgs);
       }
-    } catch (e) { log('[Consultation]请求失败: $e'); }
+    } catch (e) {
+      log('[Consultation]请求失败: $e');
+    }
   }
 
   Future<void> sendMessage(String text) async {
-    if (text.trim().isEmpty || state.isSending || state.consultationId == null) return;
+    if (text.trim().isEmpty ||
+        state.isSending ||
+        state.consultationId == null) {
+      return;
+    }
 
     final localId = '${DateTime.now().millisecondsSinceEpoch}';
     final userMsg = ConsultationMsg(
@@ -240,8 +262,10 @@ class ConsultationChatNotifier extends Notifier<ConsultationChatState> {
     try {
       // 优先通过 SignalR 发送
       if (_hub != null && _hub!.state == HubConnectionState.Connected) {
-        final result = await _hub!.invoke('SendMessage',
-            args: <Object>[state.consultationId!, 'User', '', text]);
+        final result = await _hub!.invoke(
+          'SendMessage',
+          args: <Object>[state.consultationId!, 'User', '', text],
+        );
         // 用服务器返回的真实 ID 更新本地消息，防止后续轮询重复
         if (result != null) {
           final serverId = (result as Map<String, dynamic>)['id']?.toString();
@@ -264,8 +288,10 @@ class ConsultationChatNotifier extends Notifier<ConsultationChatState> {
       } else {
         // 回退到 HTTP
         final api = ref.read(apiClientProvider);
-        final res = await api.post('/api/consultations/${state.consultationId}/messages',
-            data: {'content': text});
+        final res = await api.post(
+          '/api/consultations/${state.consultationId}/messages',
+          data: {'content': text},
+        );
         // 用服务器返回的真实 ID 更新本地消息
         final dataMap = res.data['data'] as Map<String, dynamic>?;
         final serverId = dataMap?['id']?.toString();
@@ -296,7 +322,10 @@ class ConsultationChatNotifier extends Notifier<ConsultationChatState> {
 
   void _startPolling() {
     _pollTimer?.cancel();
-    _pollTimer = Timer.periodic(const Duration(seconds: 5), (_) => _pollMessages());
+    _pollTimer = Timer.periodic(
+      const Duration(seconds: 5),
+      (_) => _pollMessages(),
+    );
   }
 
   Future<void> _pollMessages() async {
@@ -325,7 +354,8 @@ class ConsultationChatNotifier extends Notifier<ConsultationChatState> {
               senderName: map['senderName']?.toString(),
               content: map['content']?.toString() ?? '',
               createdAt:
-                  DateTime.tryParse(map['createdAt']?.toString() ?? '') ?? DateTime.now(),
+                  DateTime.tryParse(map['createdAt']?.toString() ?? '') ??
+                  DateTime.now(),
             );
           })
           .where((m) => !existingIds.contains(m.id))
@@ -334,7 +364,9 @@ class ConsultationChatNotifier extends Notifier<ConsultationChatState> {
       if (newMsgs.isNotEmpty) {
         state = state.copyWith(messages: [...state.messages, ...newMsgs]);
       }
-    } catch (e) { log('[Consultation]请求失败: $e'); }
+    } catch (e) {
+      log('[Consultation]请求失败: $e');
+    }
   }
 
   void stop() {

health_app/lib/providers/conversation_history_provider.dart

@@ -35,7 +35,6 @@ class ConversationHistoryNotifier
     extends AsyncNotifier<List<ConversationListItem>> {
   @override
   Future<List<ConversationListItem>> build() {
-    ref.watch(chatProvider.select((state) => state.conversationId));
     return _fetch();
   }
 
@@ -43,11 +42,9 @@ class ConversationHistoryNotifier
     final api = ref.read(apiClientProvider);
     final res = await api.get('/api/ai/conversations');
     final raw = (res.data['data'] as List?) ?? const [];
-    final currentConversationId = ref.read(chatProvider).conversationId;
     return raw
         .whereType<Map>()
         .map((m) => ConversationListItem.fromJson(Map<String, dynamic>.from(m)))
-        .where((item) => item.id != currentConversationId)
         .toList();
   }
 
@@ -56,21 +53,16 @@ class ConversationHistoryNotifier
     state = await AsyncValue.guard(_fetch);
   }
 
-  /// 删除单条；先乐观更新 UI，失败回滚。
+  /// 删除单条；后端确认成功后再更新 UI。
   Future<void> deleteOne(String id) async {
     final previous = state.asData?.value ?? const <ConversationListItem>[];
+    final api = ref.read(apiClientProvider);
+    await api.delete('/api/ai/conversations/$id');
     state = AsyncValue.data(previous.where((e) => e.id != id).toList());
-    try {
-      final api = ref.read(apiClientProvider);
-      await api.delete('/api/ai/conversations/$id');
-    } catch (_) {
-      state = AsyncValue.data(previous);
-      rethrow;
-    }
     // 同步清掉当前 chat state（如果删的就是当前会话）
     final chat = ref.read(chatProvider);
     if (chat.conversationId == id) {
-      ref.read(chatProvider.notifier).resetSession();
+      await ref.read(chatProvider.notifier).resetSession();
     }
   }
 
@@ -79,7 +71,7 @@ class ConversationHistoryNotifier
     final api = ref.read(apiClientProvider);
     final res = await api.delete('/api/ai/conversations');
     state = const AsyncValue.data([]);
-    ref.read(chatProvider.notifier).resetSession();
+    await ref.read(chatProvider.notifier).resetSession();
     final deleted = res.data['data']?['deleted'];
     return deleted is num ? deleted.toInt() : 0;
   }

health_app/lib/providers/data_providers.dart

@@ -43,9 +43,7 @@ final inAppNotificationServiceProvider = Provider<InAppNotificationService>((
   return InAppNotificationService(ref.watch(apiClientProvider));
 });
 
-final notificationUnreadCountProvider = FutureProvider.autoDispose<int>((
-  ref,
-) async {
+final notificationUnreadCountProvider = FutureProvider<int>((ref) async {
   final history = await ref
       .watch(inAppNotificationServiceProvider)
       .getHistory();
@@ -53,14 +51,11 @@ final notificationUnreadCountProvider = FutureProvider.autoDispose<int>((
 });
 
 /// 最新健康数据 Provider
-final latestHealthProvider = FutureProvider.autoDispose<Map<String, dynamic>>((
-  ref,
-) async {
+final latestHealthProvider = FutureProvider<Map<String, dynamic>>((ref) async {
   final service = ref.watch(healthServiceProvider);
   return service.getLatest();
 });
 
-
 /// 用药列表 Provider
 final medicationListProvider =
     FutureProvider.autoDispose<List<Map<String, dynamic>>>((ref) async {
@@ -68,27 +63,50 @@ final medicationListProvider =
       return service.getList();
     });
 
-final medicationReminderProvider =
-    FutureProvider.autoDispose<List<Map<String, dynamic>>>((ref) async {
-      final service = ref.watch(medicationServiceProvider);
-      return service.getReminders();
-    });
-
-/// 医生列表 Provider
-final doctorListProvider = FutureProvider<List<Map<String, dynamic>>>((
+final medicationReminderProvider = FutureProvider<List<Map<String, dynamic>>>((
   ref,
 ) async {
-  final service = ref.watch(consultationServiceProvider);
-  return service.getDoctors().timeout(const Duration(seconds: 8));
+  final service = ref.watch(medicationServiceProvider);
+  return service.getReminders();
 });
 
-/// 当前运动计划 Provider
-final currentExercisePlanProvider =
-    FutureProvider.autoDispose<Map<String, dynamic>?>((ref) async {
-      final service = ref.watch(exerciseServiceProvider);
-      return service.getCurrentPlan().timeout(const Duration(seconds: 8));
+/// 医生列表 Provider
+final doctorListProvider =
+    FutureProvider.autoDispose<List<Map<String, dynamic>>>((ref) async {
+      final service = ref.watch(consultationServiceProvider);
+      return service.getDoctors().timeout(const Duration(seconds: 8));
     });
 
+/// 当前运动计划 Provider
+final currentExercisePlanProvider = FutureProvider<Map<String, dynamic>?>((
+  ref,
+) async {
+  final service = ref.watch(exerciseServiceProvider);
+  return service.getCurrentPlan().timeout(const Duration(seconds: 8));
+});
+
+typedef TodayHealthSnapshot = ({
+  Map<String, dynamic> health,
+  List<Map<String, dynamic>> reminders,
+  Map<String, dynamic>? exercisePlan,
+});
+
+/// 首页今日健康一次性快照。依赖项即使先后返回，也只在全部完成后整体更新。
+final todayHealthSnapshotProvider = FutureProvider<TodayHealthSnapshot>((
+  ref,
+) async {
+  final values = await Future.wait<dynamic>([
+    ref.watch(latestHealthProvider.future),
+    ref.watch(medicationReminderProvider.future),
+    ref.watch(currentExercisePlanProvider.future),
+  ]);
+  return (
+    health: values[0] as Map<String, dynamic>,
+    reminders: values[1] as List<Map<String, dynamic>>,
+    exercisePlan: values[2] as Map<String, dynamic>?,
+  );
+});
+
 /// 拍照/相册直接触发（无需跳转页面）
 final cameraActionProvider = NotifierProvider<CameraActionNotifier, String?>(
   CameraActionNotifier.new,