feat: 引入 EF Core Migrations + 后台任务/校验修复 + 前端四态

后端
- 改用 EF Core Migrations(InitialCreate),Program.cs 用 MigrateAsync + AUTO_MIGRATE 开关 + 显式 MigrationsAssembly;移除 EnsureCreated、删除手写 DatabaseSchemaMigrator
- 修复后台任务永久卡 Processing:三个队列对超时且达上限的任务原子标记 Failed
- 修复报告重试失效:基础设施异常向上抛激活 RetryAsync,停机取消不计失败
- 修复 AI 用药天数 off-by-one(结束日为包含式)
- AI 报告日志不再记录 VLM 健康正文
- 新增统一输入校验(ValidationException + 中间件映射 400):血压/心率/血糖/血氧/体重范围、药名/日期/服药时间去重、饮食热量与评分、运动时长上限
- 删除健康数据 AI 录入的影子直写路径,统一走 Service 校验

前端
- 新增 AppErrorState / AppFutureView,用药列表、服药打卡、运动计划、随访列表改为 加载/失败/空/数据 四态,失败可重试

瘦身
- 删除过时的 DataSeeder / DevDataSeeder 及调用
- 删除依赖实时服务的 ai_agent_tests 集成测试

backend/src/Health.Infrastructure/AI/AgentHandlers/health_data_agent_handler.cs

@@ -18,13 +18,11 @@ public static class HealthDataAgentHandler
 
     public static List<ToolDefinition> Tools => [RecordHealthDataTool, CommonAgentHandler.QueryHealthRecordsTool];
 
-    public static async Task<object> Execute(string toolName, JsonElement args, AppDbContext db, Guid userId, IHealthRecordService? healthRecords = null)
+    public static async Task<object> Execute(string toolName, JsonElement args, Guid userId, IHealthRecordService healthRecords)
     {
         return toolName switch
         {
-            "record_health_data" => healthRecords == null
-                ? await ExecuteRecordHealthData(db, userId, args)
-                : await ExecuteRecordHealthData(healthRecords, userId, args),
+            "record_health_data" => await ExecuteRecordHealthData(healthRecords, userId, args),
             _ => new { success = false, message = $"未知工具: {toolName}" }
         };
     }
@@ -62,63 +60,6 @@ public static class HealthDataAgentHandler
         };
     }
 
-    private static async Task<object> ExecuteRecordHealthData(AppDbContext db, Guid userId, JsonElement args)
-    {
-        var type = args.TryGetProperty("type", out var t) ? t.GetString()! : "";
-        var record = new HealthRecord
-        {
-            Id = Guid.NewGuid(), UserId = userId, Source = HealthRecordSource.AiEntry,
-            RecordedAt = args.TryGetProperty("recorded_at", out var ra) && ra.TryGetDateTime(out var dt) ? dt : DateTime.UtcNow,
-            CreatedAt = DateTime.UtcNow,
-        };
-
-        switch (type)
-        {
-            case "blood_pressure":
-                record.MetricType = HealthMetricType.BloodPressure;
-                record.Systolic = args.TryGetProperty("systolic", out var s) ? s.GetInt32() : null;
-                record.Diastolic = args.TryGetProperty("diastolic", out var d) ? d.GetInt32() : null;
-                record.Unit = "mmHg";
-                record.IsAbnormal = record.Systolic >= 140 || record.Diastolic >= 90 || record.Systolic <= 89 || record.Diastolic <= 59;
-                break;
-            case "heart_rate":
-                record.MetricType = HealthMetricType.HeartRate;
-                record.Value = args.TryGetProperty("heart_rate", out var hr) ? hr.GetDecimal() : null;
-                record.Unit = "次/分";
-                record.IsAbnormal = record.Value > 100 || record.Value < 60;
-                break;
-            case "glucose":
-                record.MetricType = HealthMetricType.Glucose;
-                record.Value = args.TryGetProperty("glucose", out var g) ? g.GetDecimal() : null;
-                record.Unit = "mmol/L";
-                record.IsAbnormal = record.Value >= 7.0m || record.Value <= 3.8m;
-                break;
-            case "spo2":
-                record.MetricType = HealthMetricType.SpO2;
-                record.Value = args.TryGetProperty("spo2", out var o) ? o.GetDecimal() : null;
-                record.Unit = "%";
-                record.IsAbnormal = record.Value <= 94;
-                break;
-            case "weight":
-                record.MetricType = HealthMetricType.Weight;
-                record.Value = args.TryGetProperty("weight", out var w) ? w.GetDecimal() : null;
-                record.Unit = "kg";
-                record.IsAbnormal = false;
-                break;
-            default:
-                return new { success = false, message = $"未知指标类型: {type}" };
-        }
-
-        db.HealthRecords.Add(record);
-        await db.SaveChangesAsync();
-        var valStr = record.MetricType switch
-        {
-            HealthMetricType.BloodPressure => $"{record.Systolic}/{record.Diastolic}",
-            _ => record.Value?.ToString() ?? ""
-        };
-        return new { success = true, record_id = record.Id, type = record.MetricType.ToString(), value = valStr, unit = record.Unit, isAbnormal = record.IsAbnormal };
-    }
-
     private static (HealthMetricType? Type, decimal? Value, string Unit, int? Systolic, int? Diastolic) ParseMetric(string type, JsonElement args)
     {
         return type switch

backend/src/Health.Infrastructure/AI/AgentHandlers/medication_agent_handler.cs

@@ -71,7 +71,8 @@ public static class MedicationAgentHandler
         var times = ReadTimes(args);
         var durationDays = args.TryGetProperty("duration_days", out var dd) ? dd.GetInt32() : 0;
         var startDate = ReadStartDate(args);
-        var endDate = durationDays > 0 ? startDate.AddDays(durationDays) : (DateOnly?)null;
+        // 结束日为包含式（IsActiveOn 用 EndDate >= date 判断），故 N 天疗程结束日 = 起始日 + (N-1)
+        var endDate = durationDays > 0 ? startDate.AddDays(durationDays - 1) : (DateOnly?)null;
 
         var medicationId = await medications.CreateAsync(userId, new MedicationUpsertRequest(
             name,

backend/src/Health.Infrastructure/AI/AiToolExecutionService.cs

@@ -31,7 +31,7 @@ public sealed class AiToolExecutionService(
         var root = json.RootElement;
         return await (toolName switch
         {
-            "record_health_data" => HealthDataAgentHandler.Execute(toolName, root, _db, userId, _healthRecords),
+            "record_health_data" => HealthDataAgentHandler.Execute(toolName, root, userId, _healthRecords),
             "query_health_records" => CommonAgentHandler.Execute(toolName, root, userId, _healthRecords, _healthArchives, ct),
             "check_archive" => CommonAgentHandler.Execute(toolName, root, userId, _healthRecords, _healthArchives, ct),
             "manage_medication" => MedicationAgentHandler.Execute(toolName, root, _db, userId, _medications, ct),