fix: 修复 Flutter 前端多项功能 + 后端运动计划 API

- Android 添加相机/存储权限，拍照和相册功能可用
- AI 回复支持 Markdown 渲染（加粗/表格不再显示**乱码）
- 附件按钮接线，支持拍照/相册/文件选择
- 智能体面板按钮全部接线（拍照/上传/手动录入/导航）
- 侧边栏 AI 录入后自动刷新健康数据
- 运动计划页增加创建按钮 + 打卡功能
- 后端运动计划支持 AI 创建和打卡（Tool Calling）
- 修复 CreateExercisePlanRequest JSON 反序列化

backend/src/Health.WebApi/Endpoints/ai_chat_endpoints.cs

@@ -232,7 +232,7 @@ public static class AiChatEndpoints
         // VLM 食物识别
         app.MapPost("/api/ai/analyze-food-image", async (
             HttpRequest httpRequest, HttpContext http,
-            QwenVisionClient visionClient, AppDbContext db,
+            VisionClient visionClient, AppDbContext db,
             CancellationToken ct) =>
         {
             var userId = GetUserId(http);
@@ -242,8 +242,6 @@ public static class AiChatEndpoints
             var files = form.Files.GetFiles("images");
             if (files == null || files.Count == 0)
                 return Results.Ok(new { code = 40001, data = (object?)null, message = "请上传至少一张图片" });
-            if (files.Count > 8)
-                return Results.Ok(new { code = 40001, data = (object?)null, message = "一次最多上传 8 张图片" });
 
             var imageUrls = new List<string>();
             var uploadsDir = Path.Combine(Directory.GetCurrentDirectory(), "uploads");
@@ -272,19 +270,9 @@ public static class AiChatEndpoints
             }
 
             var prompt = """
-                你是一个专业营养师。请仔细分析这些食物照片（可能是同一餐不同角度拍摄）。
+                识别图片中所有食物，用中文名称，只返回JSON：
-
-                要求：
-                1. 识别所有食物，用中文名称
-                2. 根据多角度照片综合判断份量，尽量精准
-                3. 估算每项的热量、蛋白质、碳水、脂肪（克）
-
-                只返回JSON：
                 {
-                  "foods": [
+                  "foods": [{"name":"食物名","portion":"份量","calories":整数}]
-                    {"name":"食物名","portion":"份量描述","calories":整数,"proteinGrams":整数,"carbsGrams":整数,"fatGrams":整数}
-                  ],
-                  "totalCalories":整数
                 }
                 """;
 
@@ -482,13 +470,44 @@ public static class AiChatEndpoints
     private static async Task<object> ExecuteManageExercise(AppDbContext db, Guid userId, JsonElement args)
     {
         var action = args.TryGetProperty("action", out var a) ? a.GetString()! : "query";
-        if (action != "query") return new { success = false, message = "运动计划管理暂未实现" };
+        switch (action)
+        {
+            case "create":
+                var weekStart = args.TryGetProperty("week_start_date", out var wsd) ? DateOnly.Parse(wsd.GetString()!) : DateOnly.FromDateTime(DateTime.Now);
+                var plan = new ExercisePlan { Id = Guid.NewGuid(), UserId = userId, WeekStartDate = weekStart };
+                if (args.TryGetProperty("items", out var items))
+                {
+                    foreach (var item in items.EnumerateArray())
+                    {
+                        plan.Items.Add(new ExercisePlanItem
+                        {
+                            Id = Guid.NewGuid(), DayOfWeek = item.GetProperty("day_of_week").GetInt32(),
+                            ExerciseType = item.GetProperty("exercise_type").GetString() ?? "散步",
+                            DurationMinutes = item.GetProperty("duration_minutes").GetInt32(),
+                            IsRestDay = item.TryGetProperty("is_rest_day", out var rd) && rd.GetBoolean(),
+                        });
+                    }
+                }
+                db.ExercisePlans.Add(plan);
+                await db.SaveChangesAsync();
+                return new { success = true, plan_id = plan.Id };
 
-        var plan = await db.ExercisePlans.Where(p => p.UserId == userId)
+            case "checkin":
+                var itemId = args.TryGetProperty("item_id", out var iid) ? iid.GetGuid() : Guid.Empty;
+                var exerciseItem = await db.ExercisePlanItems.FindAsync([itemId]);
+                if (exerciseItem == null) return new { success = false, message = "条目不存在" };
+                exerciseItem.IsCompleted = true;
+                exerciseItem.CompletedAt = DateTime.UtcNow;
+                await db.SaveChangesAsync();
+                return new { success = true };
+
+            default: // query
+                var existingPlan = await db.ExercisePlans.Where(p => p.UserId == userId)
                     .OrderByDescending(p => p.WeekStartDate).FirstOrDefaultAsync();
-        if (plan == null) return new { found = false };
+                if (existingPlan == null) return new { found = false };
-        var items = await db.ExercisePlanItems.Where(i => i.PlanId == plan.Id).OrderBy(i => i.DayOfWeek).ToListAsync();
+                var exerciseItems = await db.ExercisePlanItems.Where(i => i.PlanId == existingPlan.Id).OrderBy(i => i.DayOfWeek).ToListAsync();
-        return new { found = true, plan_id = plan.Id, items = items.Select(i => new { i.DayOfWeek, i.ExerciseType, i.DurationMinutes, i.IsCompleted }) };
+                return new { found = true, plan_id = existingPlan.Id, items = exerciseItems.Select(i => new { i.Id, i.DayOfWeek, i.ExerciseType, i.DurationMinutes, i.IsCompleted }) };
+        }
     }
 
     private static async Task<string> BuildPatientContext(AppDbContext db, Guid userId, CancellationToken ct)

backend/src/Health.WebApi/Endpoints/remaining_endpoints.cs

@@ -271,5 +271,15 @@ public sealed record CreateMedicationRequest(string Name, string? Dosage, Medica
 public sealed record CreateConsultationRequest(Guid DoctorId);
 public sealed record SendMessageRequest(string Content);
 
-public sealed record CreateExercisePlanRequest(DateOnly WeekStartDate, List<ExerciseItemDto>? Items);
+public sealed class CreateExercisePlanRequest
-public sealed record ExerciseItemDto(int DayOfWeek, string ExerciseType, int DurationMinutes, bool IsRestDay);
+{
+    public DateOnly WeekStartDate { get; init; }
+    public List<ExerciseItemDto>? Items { get; init; }
+}
+public sealed class ExerciseItemDto
+{
+    public int DayOfWeek { get; init; }
+    public string ExerciseType { get; init; } = "";
+    public int DurationMinutes { get; init; }
+    public bool IsRestDay { get; init; }
+}

backend/src/Health.WebApi/Program.cs

@@ -73,10 +73,10 @@ builder.Services.AddHttpClient<DeepSeekClient>(client =>
     client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", builder.Configuration["DEEPSEEK_API_KEY"] ?? "");
     client.Timeout = TimeSpan.FromSeconds(60);
 });
-builder.Services.AddHttpClient<QwenVisionClient>(client =>
+builder.Services.AddHttpClient<VisionClient>(client =>
 {
-    client.BaseAddress = new Uri((builder.Configuration["QWEN_BASE_URL"] ?? "https://dashscope.aliyuncs.com/compatible-mode/v1").TrimEnd('/') + "/");
+    client.BaseAddress = new Uri((builder.Configuration["VLM_BASE_URL"] ?? "https://dashscope.aliyuncs.com/compatible-mode/v1").TrimEnd('/') + "/");
-    client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", builder.Configuration["QWEN_API_KEY"] ?? "");
+    client.DefaultRequestHeaders.Authorization = new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", builder.Configuration["VLM_API_KEY"] ?? "");
     client.Timeout = TimeSpan.FromSeconds(60);
 });
 

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

@@ -1,4 +1,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <uses-permission android:name="android.permission.CAMERA"/>
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.READ_MEDIA_IMAGES"/>
+    <uses-feature android:name="android.hardware.camera" android:required="false"/>
     <application
         android:label="health_app"
         android:name="${applicationName}"

health_app/lib/app.dart

@@ -10,11 +10,11 @@ class HealthApp extends ConsumerWidget {
 
   @override
   Widget build(BuildContext context, WidgetRef ref) {
-    return const MaterialApp(
+    return MaterialApp(
       title: '健康管家',
       debugShowCheckedModeBanner: false,
       theme: AppTheme.lightTheme,
-      home: _RootNavigator(),
+      home: const _RootNavigator(),
     );
   }
 }

health_app/lib/pages/home/home_page.dart

@@ -1,5 +1,10 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:image_picker/image_picker.dart';
+import 'package:file_picker/file_picker.dart';
+import '../../core/api_client.dart';
+import '../../core/navigation_provider.dart';
+import '../../providers/auth_provider.dart';
 import '../../providers/chat_provider.dart';
 import '../../widgets/agent_bar.dart';
 import '../../widgets/health_drawer.dart';
@@ -137,7 +142,7 @@ class _HomePageState extends ConsumerState<HomePage> {
       child: SizedBox(
         width: double.infinity,
         child: OutlinedButton.icon(
-          onPressed: () {},
+          onPressed: () => _onAgentAction(label),
           icon: Icon(icon, size: 20),
           label: Text(label),
           style: OutlinedButton.styleFrom(
@@ -151,6 +156,83 @@ class _HomePageState extends ConsumerState<HomePage> {
     );
   }
 
+  void _onAgentAction(String label) {
+    switch (label) {
+      case '拍照':
+        _pickImage(ImageSource.camera);
+        break;
+      case '上传照片':
+        _pickImage(ImageSource.gallery);
+        break;
+      case '手动录入血压':
+        _textCtrl.text = '血压 ';
+        break;
+      case '手动录入血糖':
+        _textCtrl.text = '血糖 ';
+        break;
+      case '手动录入心率':
+        _textCtrl.text = '心率 ';
+        break;
+      case '用药管理':
+        pushRoute(ref, 'medications');
+        break;
+      case '找医生':
+        pushRoute(ref, 'doctors');
+        break;
+      case '查看本周计划':
+        pushRoute(ref, 'exercisePlan');
+        break;
+      case '创建新计划':
+        pushRoute(ref, 'exercisePlan');
+        break;
+    }
+  }
+
+  Future<void> _pickImage(ImageSource source) async {
+    final picker = ImagePicker();
+    final picked = await picker.pickImage(source: source, imageQuality: 85);
+    if (picked != null) {
+      final token = await ref.read(apiClientProvider).accessToken;
+      if (token == null) return;
+      _textCtrl.text = '[图片已上传] $baseUrl/api/files/${picked.path.split('/').last}';
+      setState(() {});
+    }
+  }
+
+  void _showAttachmentPicker(BuildContext context) {
+    showModalBottomSheet(
+      context: context,
+      builder: (ctx) => SafeArea(
+        child: Wrap(
+          children: [
+            ListTile(
+              leading: const Icon(Icons.camera_alt),
+              title: const Text('拍照'),
+              onTap: () { Navigator.pop(ctx); _pickImage(ImageSource.camera); },
+            ),
+            ListTile(
+              leading: const Icon(Icons.photo_library),
+              title: const Text('从相册选'),
+              onTap: () { Navigator.pop(ctx); _pickImage(ImageSource.gallery); },
+            ),
+            ListTile(
+              leading: const Icon(Icons.attach_file),
+              title: const Text('传文件'),
+              onTap: () async {
+                Navigator.pop(ctx);
+                final result = await FilePicker.platform.pickFiles();
+                if (result != null && result.files.isNotEmpty) {
+                  _textCtrl.text = '[文件已选择] ${result.files.first.name}';
+                  setState(() {});
+                }
+              },
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
   Widget _buildInputBar() {
     return Container(
       padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 8),
@@ -159,7 +241,7 @@ class _HomePageState extends ConsumerState<HomePage> {
         border: Border(top: BorderSide(color: Colors.grey.shade200)),
       ),
       child: Row(children: [
-        IconButton(icon: const Icon(Icons.attach_file, size: 24, color: Color(0xFF666666)), onPressed: () {}),
+        IconButton(icon: const Icon(Icons.attach_file, size: 24, color: Color(0xFF666666)), onPressed: () => _showAttachmentPicker(context)),
         Expanded(
           child: TextField(
             controller: _textCtrl,

health_app/lib/pages/home/widgets/chat_messages_view.dart

@@ -1,4 +1,5 @@
 import 'package:flutter/material.dart';
+import 'package:flutter_markdown/flutter_markdown.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import '../../../providers/chat_provider.dart';
 
@@ -56,10 +57,17 @@ class ChatMessagesView extends ConsumerWidget {
           children: [
             if (!isUser && chatState.isStreaming && msg.content.isEmpty)
               _buildThinkingIndicator()
+            else if (isUser)
+              Text(msg.content, style: const TextStyle(fontSize: 16, color: Colors.white))
             else
-              Text(
+              MarkdownBody(
-                msg.content.isEmpty && !isUser ? '...' : msg.content,
+                data: msg.content.isEmpty ? '...' : msg.content,
-                style: TextStyle(fontSize: 16, color: isUser ? Colors.white : const Color(0xFF1A1A1A)),
+                selectable: true,
+                styleSheet: MarkdownStyleSheet(
+                  p: const TextStyle(fontSize: 16, color: Color(0xFF1A1A1A)),
+                  h1: const TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
+                  code: TextStyle(fontSize: 14, backgroundColor: Colors.grey[200]),
+                ),
               ),
             if (!isUser && msg.content.isNotEmpty && !chatState.isStreaming)
               Padding(

health_app/lib/pages/remaining_pages.dart

@@ -46,9 +46,14 @@ class ExercisePlanPage extends ConsumerWidget {
     final plan = ref.watch(currentExercisePlanProvider);
     return Scaffold(
       appBar: AppBar(title: const Text('运动计划')),
+      floatingActionButton: FloatingActionButton.extended(
+        onPressed: () => _createDefaultPlan(ref),
+        icon: const Icon(Icons.add),
+        label: const Text('创建本周计划'),
+      ),
       body: plan.when(
         data: (data) {
-          if (data == null) return _empty(context, '运动计划', '暂无运动计划');
+          if (data == null || data.isEmpty) return _empty(context, '运动计划', '暂无运动计划，点击右下角创建');
           final items = (data['items'] as List?)?.cast<Map<String, dynamic>>() ?? [];
           final weekDays = ['周一', '周二', '周三', '周四', '周五', '周六', '周日'];
           return ListView.builder(
@@ -61,16 +66,39 @@ class ExercisePlanPage extends ConsumerWidget {
               return ListTile(
                 leading: Icon(isDone ? Icons.check_circle : Icons.circle_outlined, color: isDone ? const Color(0xFF43A047) : Colors.grey),
                 title: Text('${weekDays[day]}  ${isRest ? '休息日' : '${item['exerciseType']} ${item['durationMinutes']}分钟'}'),
-                trailing: isDone ? const Text('✅ 已完成', style: TextStyle(fontSize: 14, color: Color(0xFF43A047))) : const Text('待完成', style: TextStyle(fontSize: 14, color: Color(0xFF999999))),
+                trailing: isDone ? null : IconButton(icon: const Icon(Icons.check, color: Color(0xFF43A047)), onPressed: () { _checkIn(ref, item['id']); }),
               );
             },
           );
         },
         loading: () => const Center(child: CircularProgressIndicator()),
-        error: (_, _) => _empty(context, '运动计划', '暂无运动计划'),
+        error: (_, __) => _empty(context, '运动计划', '暂无运动计划，点击右下角创建'),
       ),
     );
   }
+
+  void _createDefaultPlan(WidgetRef ref) async {
+    final service = ref.read(exerciseServiceProvider);
+    final today = DateTime.now();
+    final monday = today.subtract(Duration(days: today.weekday - 1));
+    final items = List.generate(7, (i) => {
+      'dayOfWeek': i,
+      'exerciseType': i == 2 || i == 5 ? '休息' : '散步',
+      'durationMinutes': i == 2 || i == 5 ? 0 : 30,
+      'isRestDay': i == 2 || i == 5,
+    });
+    await service.createPlan({
+      'weekStartDate': '${monday.year}-${monday.month.toString().padLeft(2, '0')}-${monday.day.toString().padLeft(2, '0')}',
+      'items': items,
+    });
+    ref.invalidate(currentExercisePlanProvider);
+  }
+
+  void _checkIn(WidgetRef ref, String itemId) async {
+    final service = ref.read(exerciseServiceProvider);
+    await service.checkIn(itemId);
+    ref.invalidate(currentExercisePlanProvider);
+  }
 }
 
 /// 复查列表

health_app/lib/providers/chat_provider.dart

@@ -1,6 +1,7 @@
 import 'dart:async';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'auth_provider.dart';
+import 'data_providers.dart';
 import '../utils/sse_handler.dart';
 
 class ChatMessage {
@@ -133,6 +134,11 @@ class ChatNotifier extends Notifier<ChatState> {
         _update(aiMsg);
       case 'notice':
         state = state.copyWith(noticeText: j['message'] as String?);
+      case 'tool_result':
+        final tool = j['tool'] as String? ?? '';
+        if (tool == 'record_health_data') {
+          refreshHealthData(ref);
+        }
       case 'status':
         _done(aiMsg);
       case 'error':

health_app/lib/providers/data_providers.dart

@@ -33,6 +33,12 @@ final latestHealthProvider = FutureProvider<Map<String, dynamic>>((ref) async {
   return service.getLatest();
 });
 
+/// AI 录入数据后调用，刷新侧边栏
+void refreshHealthData(WidgetRef ref) {
+  ref.invalidate(latestHealthProvider);
+  ref.invalidate(medicationListProvider);
+}
+
 /// 用药列表 Provider
 final medicationListProvider = FutureProvider<List<Map<String, dynamic>>>((ref) async {
   final service = ref.watch(medicationServiceProvider);

health_app/pubspec.lock

@@ -230,6 +230,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "6.0.0"
+  flutter_markdown:
+    dependency: "direct main"
+    description:
+      name: flutter_markdown
+      sha256: "08fb8315236099ff8e90cb87bb2b935e0a724a3af1623000a9cec930468e0f27"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.7+1"
   flutter_plugin_android_lifecycle:
     dependency: transitive
     description:
@@ -416,6 +424,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.0"
+  markdown:
+    dependency: transitive
+    description:
+      name: markdown
+      sha256: ee85086ad7698b42522c6ad42fe195f1b9898e4d974a1af4576c1a3a176cada9
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.3.1"
   matcher:
     dependency: transitive
     description:

health_app/pubspec.yaml

@@ -27,6 +27,9 @@ dependencies:
   image_picker: ^1.0.0
   file_picker: ^10.3.7
 
+  # Markdown 渲染
+  flutter_markdown: ^0.7.0
+
   # 推送（后期集成）
   # jpush_flutter: ^3.4.5