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/MarkdownController.java

@@ -2,10 +2,14 @@ package com.test.bijihoudaun.controller;
 
 import com.test.bijihoudaun.entity.MarkdownFile;
 import com.test.bijihoudaun.service.MarkdownFileService;
+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.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
-
+@Tag(name = "markdown接口")
 @RestController
 @RequestMapping("/api/markdown")
 public class MarkdownController {
@@ -13,6 +17,13 @@ public class MarkdownController {
     @Autowired
     private MarkdownFileService markdownFileService;
 
+    @Operation(summary = "创建markdown文件")
+    @Parameters({
+            @Parameter(name = "userId", description = "用户id",required = true),
+            @Parameter(name = "title", description = "标题",required = true),
+            @Parameter(name = "fileName", description = "文件名",required = true),
+            @Parameter(name = "content", description = "内容",required = true)
+    })
     @PostMapping
     public ResponseEntity<MarkdownFile> createMarkdown(
             @RequestParam Integer userId,
@@ -26,7 +37,12 @@ public class MarkdownController {
         return ResponseEntity.ok(file);
     }
 
-    @PutMapping("/{id}")
+    @Operation(summary = "更新Markdown文件")
+    @Parameters({
+            @Parameter(name = "id", description = "Markdown文件ID", required = true),
+            @Parameter(name = "content", description = "Markdown文件内容", required = true)
+    })
+    @PostMapping("/{id}")
     public ResponseEntity<MarkdownFile> updateMarkdown(
             @PathVariable Integer id,
             @RequestBody String content) {