feat: 应用内通知系统 + 结构化手术史/用药等相关改动

- 新增用户通知 outbox 流水线(EfUserNotificationPipeline)与后台投递 worker
- 通知中心页面及前端通知服务接入
- 健康指标异常、用药/运动提醒等事件统一产出站内通知
- 健康档案结构化手术史、用药提醒扫描、医生/用户端点等配套调整
- AppDbContext 注册通知相关实体

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

@@ -36,6 +36,9 @@ public static class UserEndpoints
         group.MapPut("/health-archive", async (UpdateArchiveRequest req, HttpContext http, IHealthArchiveService archives, CancellationToken ct) =>
         {
             var surgeryDate = DateOnly.TryParse(req.SurgeryDate, out var parsed) ? parsed : (DateOnly?)null;
+            var surgeries = req.Surgeries?.Select(s => new HealthArchiveSurgeryInput(
+                s.Type,
+                DateOnly.TryParse(s.Date, out var date) ? date : null)).ToList();
             await archives.UpdateAsync(
                 GetUserId(http),
                 new HealthArchiveUpdateRequest(
@@ -45,7 +48,8 @@ public static class UserEndpoints
                     req.Allergies,
                     req.DietRestrictions,
                     req.ChronicDiseases,
-                    req.FamilyHistory),
+                    req.FamilyHistory,
+                    surgeries),
                 ct);
             return Results.Ok(new { code = 0, data = new { success = true }, message = (string?)null });
         });
@@ -65,4 +69,7 @@ public sealed record UpdateProfileRequest(string? Name, string? Gender, string?
 public sealed record UpdateArchiveRequest(
     string? Diagnosis, string? SurgeryType, string? SurgeryDate,
     List<string>? Allergies, List<string>? DietRestrictions,
-    List<string>? ChronicDiseases, string? FamilyHistory);
+    List<string>? ChronicDiseases, string? FamilyHistory,
+    List<UpdateArchiveSurgeryRequest>? Surgeries);
+
+public sealed record UpdateArchiveSurgeryRequest(string Type, string? Date);