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.Models/Entity/UserBag.cs

@@ -0,0 +1,64 @@
+using SqlSugar;
+
+namespace QYZH.InteractiveMagazine.Models.Entity
+{
+    ///<summary>
+    ///用户背包表
+    ///</summary>
+    [SugarTable("UserBag")]
+    public partial class UserBag : BaseEntity
+    {
+           public UserBag(){
+
+
+           }
+           /// <summary>
+           /// Desc:用户Id
+           /// Default:
+           /// Nullable:False
+           /// </summary>           
+           public long UserId {get;set;}
+
+           /// <summary>
+           /// Desc:物品类型: MakeUpCard, PetBg
+           /// Default:
+           /// Nullable:False
+           /// </summary>           
+           public string ItemType {get;set;}
+
+           /// <summary>
+           /// Desc:关联商品Id或资源Id
+           /// Default:
+           /// Nullable:False
+           /// </summary>           
+           public int ItemId {get;set;}
+
+           /// <summary>
+           /// Desc:数量
+           /// Default:1
+           /// Nullable:False
+           /// </summary>           
+           public int Quantity {get;set;}
+
+           /// <summary>
+           /// Desc:扩展信息
+           /// Default:
+           /// Nullable:True
+           /// </summary>           
+           public string MetaData {get;set;}
+
+           /// <summary>
+           /// Desc:背包物品分类
+           /// Default:
+           /// Nullable:True
+           /// </summary>           
+           public string Type {get;set;}
+
+           /// <summary>
+           /// Desc:状态: Available, Expired
+           /// Default:Available
+           /// Nullable:False
+           /// </summary>           
+           public string Status {get;set;}
+    }
+}