feat(user): 新增用户注册、登录和删除功能

- 新增用户实体类和相关控制器、服务类
- 实现用户注册、登录和删除功能
- 添加用户token生成和验证逻辑
-优化密码存储，使用加密算法

biji-houdaun/src/main/java/com/test/bijihoudaun/entity/User.java

@@ -3,20 +3,30 @@ package com.test.bijihoudaun.entity;
 import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
+import io.swagger.v3.oas.annotations.media.Schema;
 import lombok.Data;
 
 import java.time.LocalDateTime;
 
 @Data
+@Schema(name = "用户实体")
 @TableName("user")
 public class User {
+    @Schema(description = "用户id",implementation = Long.class)
     @TableId(type = IdType.AUTO)
-    private Integer id;
+    private Long id;
+    @Schema(description = "用户名",implementation = String.class)
     private String username;
+    @Schema(description = "密码",implementation = String.class)
     private String password;
+    @Schema(description = "邮箱",implementation = String.class)
     private String email;
+    @Schema(description = "用户创建时间",implementation = String.class)
     private LocalDateTime createdAt;
+    @Schema(description = "用户更新时间",implementation = String.class)
     private LocalDateTime updatedAt;
+    @Schema(description = "用户token",implementation = String.class)
     private String token;
+    @Schema(description = "用户token过期时间",implementation = String.class)
     private LocalDateTime tokenEnddata;
 }