refactor: 重构蓝牙设备页与新增设备页的扫描-连接-录入流程

- 通用 BLE 健康设备识别（血压计/血糖仪/体重秤/血氧仪 标准 service UUID）
- 蓝牙设备页静默自动同步：仅匹配已绑定的设备名+类型，收到数据后变绿
- 新增设备页：扫描所有支持类型设备 → 选连接 → 绑定 + 同步首次数据
- 修复 read 缓存导致的重复录入循环（删除主动 read，依赖 indicate 推送）
- 修复 isConnected 缓存状态导致连接异常（强制先 disconnect 再 connect）
- 录入弹窗：血压心率同等级展示、3 秒自动关闭/手动确认
- 顺手更新本机开发 IP 与清理过时设计文档

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

@@ -1,5 +1,7 @@
 using System.Security.Claims;
+using System.Text.Json;
 using Health.Application.Notifications;
+using Health.Domain.Enums;
 
 namespace Health.WebApi.Endpoints;
 
@@ -96,6 +98,48 @@ public static class NotificationEndpoints
             if (body.HealthRecordReminderWeight.HasValue) pref.HealthRecordReminderWeight = body.HealthRecordReminderWeight.Value;
             pref.UpdatedAt = DateTime.UtcNow;
             await db.SaveChangesAsync(ct);
+
+            // 保存后立即检查该用户是否需要健康录入提醒，不用等到 9:00/12:00
+            if (body.HealthRecordReminder is true && pref.HealthRecordReminder)
+            {
+                var nowCst = DateTime.UtcNow.AddHours(8);
+                var todayStart = nowCst.Date.AddHours(-8);
+                var todayEnd = todayStart.AddDays(1);
+
+                var recordedTypes = await db.HealthRecords
+                    .Where(r => r.UserId == userId && r.RecordedAt >= todayStart && r.RecordedAt < todayEnd)
+                    .Select(r => r.MetricType)
+                    .Distinct()
+                    .ToListAsync(ct);
+
+                var missing = new List<(HealthMetricType type, bool enabled, string label)>
+                {
+                    (HealthMetricType.BloodPressure, pref.HealthRecordReminderBloodPressure, "血压"),
+                    (HealthMetricType.HeartRate, pref.HealthRecordReminderHeartRate, "心率"),
+                    (HealthMetricType.Glucose, pref.HealthRecordReminderGlucose, "血糖"),
+                    (HealthMetricType.SpO2, pref.HealthRecordReminderSpO2, "血氧"),
+                    (HealthMetricType.Weight, pref.HealthRecordReminderWeight, "体重"),
+                };
+
+                var missingLabels = missing
+                    .Where(m => m.enabled && !recordedTypes.Contains(m.type))
+                    .Select(m => m.label)
+                    .ToList();
+
+                if (missingLabels.Count > 0)
+                {
+                    var producer = http.RequestServices.GetRequiredService<IUserNotificationProducer>();
+                    var sourceId = Guid.NewGuid();
+                    await producer.EnqueueAsync(userId, sourceId, new NotificationMessage(
+                        Type: "health_record_reminder",
+                        Title: "记录今日健康指标",
+                        Message: $"建议录入：{string.Join("、", missingLabels)}",
+                        Severity: "info",
+                        ActionType: "health",
+                        ActionTargetId: null), ct);
+                }
+            }
+
             return Results.Ok(new { code = 0, data = ToDto(pref), message = (string?)null });
         });
     }