refactor: 重构项目基础架构与实体体系

- 替换原有自定义生命周期接口为通用基础服务体系
- 将所有实体基类替换为带雪花ID的SqlSugarBaseEntity
- 迁移DTO到Models项目并统一管理
- 移除冗余的Repository层实现，改用通用基础服务
- 添加Yitter.IdGenerator雪花ID生成支持
- 重构SqlSugar数据库上下文与依赖注入配置
- 新增微信用户、用户勋章、背包等实体与配套服务
- 整理分页查询与结果封装类
- 优化WebApi控制器结构

QYZH.InteractiveMagazine.Models/Dto/Admin/AdminUserDto.cs

@@ -0,0 +1,96 @@
+using QYZH.InteractiveMagazine.Models.Dto;
+
+namespace QYZH.InteractiveMagazine.Models.Dto;
+
+/// <summary>
+/// 管理员创建/更新输入
+/// </summary>
+public class AdminUserInput
+{
+    /// <summary>
+    /// 用户名
+    /// </summary>
+    public string UserName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 密码（创建时必填，更新时为空表示不修改密码）
+    /// </summary>
+    public string? Password { get; set; }
+
+    /// <summary>
+    /// 管理员类型: SuperAdmin, Editor
+    /// </summary>
+    public string Type { get; set; } = "Editor";
+
+    /// <summary>
+    /// 状态: Active, Inactive
+    /// </summary>
+    public string Status { get; set; } = "Active";
+}
+
+/// <summary>
+/// 管理员输出
+/// </summary>
+public class AdminUserOutput
+{
+    /// <summary>
+    /// 主键ID
+    /// </summary>
+    public long Id { get; set; }
+
+    /// <summary>
+    /// 用户名
+    /// </summary>
+    public string UserName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 管理员类型
+    /// </summary>
+    public string Type { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 状态
+    /// </summary>
+    public string Status { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 创建人
+    /// </summary>
+    public string? CreatedBy { get; set; }
+
+    /// <summary>
+    /// 创建时间
+    /// </summary>
+    public DateTime CreatedAt { get; set; }
+
+    /// <summary>
+    /// 更新人
+    /// </summary>
+    public string? UpdatedBy { get; set; }
+
+    /// <summary>
+    /// 更新时间
+    /// </summary>
+    public DateTime? UpdatedAt { get; set; }
+}
+
+/// <summary>
+/// 管理员分页查询输入
+/// </summary>
+public class AdminUserQueryInput : PageQueryModel
+{
+    /// <summary>
+    /// 用户名（模糊查询）
+    /// </summary>
+    public string? UserName { get; set; }
+
+    /// <summary>
+    /// 管理员类型
+    /// </summary>
+    public string? Type { get; set; }
+
+    /// <summary>
+    /// 状态
+    /// </summary>
+    public string? Status { get; set; }
+}

QYZH.InteractiveMagazine.Models/Dto/Admin/AuthDto.cs

@@ -0,0 +1,40 @@
+namespace QYZH.InteractiveMagazine.Models.Dto;
+
+
+/// <summary>
+/// 管理员登录输入
+/// </summary>
+public class AdminLoginInput
+{
+    /// <summary>
+    /// 用户名
+    /// </summary>
+    public string UserName { get; set; } = string.Empty;
+
+    /// <summary>
+    /// 密码
+    /// </summary>
+    public string Password { get; set; } = string.Empty;
+}
+
+public class AdminLoginOutput
+{
+    public string Token { get; set; } = string.Empty;
+
+    public long UserId { get; set; }
+
+    public string UserName { get; set; } = string.Empty;
+
+    public string Type { get; set; } = string.Empty;
+}
+
+public class AdminUserInfoOutput
+{
+    public long UserId { get; set; }
+
+    public string UserName { get; set; } = string.Empty;
+
+    public string Type { get; set; } = string.Empty;
+
+    public string Status { get; set; } = string.Empty;
+}