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/controller/UserController.java

@@ -0,0 +1,55 @@
+package com.test.bijihoudaun.controller;
+
+import com.test.bijihoudaun.common.response.R;
+import com.test.bijihoudaun.entity.User;
+import com.test.bijihoudaun.service.UserService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.Parameter;
+import io.swagger.v3.oas.annotations.Parameters;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+@Tag(name = "用户接口")
+@RestController
+@RequestMapping("/api/user")
+public class UserController {
+    @Autowired
+    private UserService userService;
+
+    @Operation(summary = "用户注册")
+    @Parameters({
+            @Parameter(name = "username", description = "用户名",required = true),
+            @Parameter(name = "password", description = "密码",required = true),
+            @Parameter(name = "email", description = "邮箱",required = true)
+    })
+    @PostMapping("/register")
+    public R<User> register(String username, String password, String email){
+        return R.success(userService.register(username,password,email));
+    }
+
+    @Operation(summary = "用户登录")
+    @Parameters({
+            @Parameter(name = "username", description = "用户名",required = true),
+            @Parameter(name = "password", description = "密码",required = true)
+    })
+    @PostMapping("/login")
+    public R<User> login(String username, String password){
+        return R.success(userService.login(username,password));
+    }
+
+    @Operation(summary = "用户删除")
+    @Parameters({
+            @Parameter(name = "id", description = "用户id",required = true)
+    })
+    @DeleteMapping("/deleteUser")
+    public R<String> deleteUser(Integer id){
+        userService.deleteUser(id);
+        return R.success("删除成功");
+    }
+
+
+
+}