feat: 初始化后台管理模块与基础业务框架

1.  新增依赖注入生命周期标记接口、基础仓储与管理员仓储实现
2.  新增管理员认证与用户服务接口，补充认证相关DTO
3.  重构实体审计字段命名，统一Created/UpdatedAt规范
4.  新增大量业务实体类与API版本枚举配置
5.  集成Autofac依赖注入、JWT自动刷新与跨域配置
6.  替换原有微信小程序与旧认证服务为后台管理系统架构
7.  完善Swagger文档配置与项目基础部署配置

QYZH.InteractiveMagazine.Service/BaseService.cs

@@ -182,23 +182,19 @@ public class BaseService<T> : IBaseService<T> where T : class, new()
         if (entity is BaseEntity baseEntity)
         {
             var now = DateTime.Now;
-            baseEntity.CreatedTime = now;
-            baseEntity.UpdatedTime = now;
+            baseEntity.CreatedAt = now;
+            baseEntity.UpdatedAt = now;
             baseEntity.CreatedBy = baseEntity.CreatedBy ?? "system";
             baseEntity.UpdatedBy = baseEntity.UpdatedBy ?? "system";
             baseEntity.IsDeleted = false;
         }
     }
 
-    /// <summary>
-    /// 设置更新时的审计字段
-    /// </summary>
-    /// <param name="entity">实体对象</param>
     private static void SetAuditFieldsOnUpdate(T entity)
     {
         if (entity is BaseEntity baseEntity)
         {
-            baseEntity.UpdatedTime = DateTime.Now;
+            baseEntity.UpdatedAt = DateTime.Now;
             baseEntity.UpdatedBy = baseEntity.UpdatedBy ?? "system";
         }
     }