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/ImageController.java

@@ -3,13 +3,19 @@ package com.test.bijihoudaun.controller;
 
 import com.test.bijihoudaun.entity.Image;
 import com.test.bijihoudaun.service.ImageService;
+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.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.responses.ApiResponses;
+import io.swagger.v3.oas.annotations.tags.Tag;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 
 import java.io.IOException;
-
+@Tag(name = "markdown接口")
 @RestController
 @RequestMapping("/api/images")
 public class ImageController {
@@ -17,6 +23,12 @@ public class ImageController {
     @Autowired
     private ImageService imageService;
 
+    @Operation(summary = "上传图片")
+    @Parameters({
+            @Parameter(name = "userId", description = "用户id", required = true),
+            @Parameter(name = "markdownId", description = "markdownid", required = true),
+            @Parameter(name = "file", description = "图片文件", required = true)
+    })
     @PostMapping
     public ResponseEntity<Image> uploadImage(
             @RequestParam Integer userId,