refactor: 重构用户与商品模块，统一业务模型与服务

1.  新增用户状态枚举UserStatusEnum，统一用户状态定义
2.  重构用户体系：合并WxUser与User实体为Users实体，统一用户管理
3.  新增微信小程序认证相关服务与控制器，实现一键登录功能
4.  新增商品管理完整服务与控制器，修复商品表字段映射问题
5.  删除冗余的WxUser相关服务与控制器代码
6.  新增Newtonsoft.Json依赖用于微信接口响应解析
7.  清理无用的文件夹引用配置

QYZH.InteractiveMagazine.Models/Entity/Users.cs

@@ -0,0 +1,71 @@
+using SqlSugar;
+
+namespace QYZH.InteractiveMagazine.Models.Entity
+{
+    ///<summary>
+    ///用户表
+    ///</summary>
+    [SugarTable("Users")]
+    public partial class Users : SqlSugarBaseEntity
+    {
+
+        /// <summary>
+        /// Desc:昵称
+        /// Default:
+        /// Nullable:True
+        /// </summary>           
+        public string Name { get; set; }
+        /// <summary>
+        /// Desc:当前成长值
+        /// Default:0
+        /// Nullable:False
+        /// </summary>           
+        public int GrowthPoints { get; set; }
+        /// <summary>
+        /// Desc:头像地址
+        /// Default:
+        /// Nullable:True
+        /// </summary>           
+        public string AvatarUrl { get; set; }
+        /// <summary>
+        /// Desc:积分余额
+        /// Default:0
+        /// Nullable:False
+        /// </summary>           
+        public int Points { get; set; }
+
+        /// <summary>
+        /// Desc:用户类型: Normal, VIP
+        /// Default:Normal
+        /// Nullable:False
+        /// </summary>           
+        public string Type { get; set; }
+
+        /// <summary>
+        /// Desc:状态: Active, Disabled
+        /// Default:Active
+        /// Nullable:False
+        /// </summary>           
+        public string Status { get; set; }
+        /// <summary>
+        /// Desc:微信OpenId
+        /// Default:
+        /// Nullable:False
+        /// </summary>           
+        public string OpenId { get; set; }
+
+        /// <summary>
+        /// Desc:微信UnionId
+        /// Default:
+        /// Nullable:True
+        /// </summary>           
+        public string UnionId { get; set; }
+        /// <summary>
+        /// Desc:手机号
+        /// Default:
+        /// Nullable:True
+        /// </summary>           
+        public string Phone { get; set; }
+
+    }
+}