feat(biji): 优化笔记展示功能并调整端口

-将服务器端口从 8083 改为 8084
- 在数据库中添加 grouping_id 字段
- 实现笔记分组展示功能
-优化笔记编辑页面布局
-重构后端接口返回类型
- 移除 MarkdownFile 实体中的 userId 字段

biji-houdaun/src/main/java/com/test/bijihoudaun/controller/MarkdownController.java

@@ -8,7 +8,6 @@ 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.*;
 
 import java.util.List;
@@ -33,12 +32,12 @@ public class MarkdownController {
         @Parameter(name = "id", description = "文件ID", required = true)
     })
     @GetMapping("/{id}")
-    public ResponseEntity<String> getMarkdownContent(@PathVariable Long id) {
+    public R<String> getMarkdownContent(@PathVariable Long id) {
         MarkdownFile file = markdownFileService.getMarkdownById(id);
         if (file != null) {
-            return ResponseEntity.ok(file.getContent());
+            return R.success(file.getContent());
         }
-        return ResponseEntity.notFound().build();
+        return R.fail();
     }
 
     @Operation(summary = "创建markdown文件")
@@ -49,7 +48,7 @@ public class MarkdownController {
             @Parameter(name = "content", description = "内容",required = true)
     })
     @PostMapping
-    public ResponseEntity<MarkdownFile> createMarkdown(
+    public R<MarkdownFile> createMarkdown(
             @RequestParam Long groupingId,
             @RequestParam String title,
             @RequestParam String fileName,
@@ -58,7 +57,7 @@ public class MarkdownController {
         MarkdownFile file = markdownFileService.createMarkdownFile(
                 groupingId, title, fileName, content);
 
-        return ResponseEntity.ok(file);
+        return R.success(file);
     }
 
     @Operation(summary = "更新Markdown文件")
@@ -67,39 +66,38 @@ public class MarkdownController {
             @Parameter(name = "content", description = "Markdown文件内容", required = true)
     })
     @PostMapping("/{id}")
-    public ResponseEntity<MarkdownFile> updateMarkdown(
+    public R<MarkdownFile> updateMarkdown(
             @PathVariable Long id,
             @RequestBody String content) {
 
         MarkdownFile file = markdownFileService.updateMarkdownContent(id, content);
 
         if (file != null) {
-            return ResponseEntity.ok(file);
+            return R.success(file);
         }
-        return ResponseEntity.notFound().build();
+        return R.fail();
     }
 
     @Operation(summary = "获取所有Markdown文件")
     @GetMapping
-    public ResponseEntity<List<MarkdownFile>> getAllMarkdownFiles() {
-        // 固定用户ID=1，因为是个人笔记
+    public R<List<MarkdownFile>> getAllMarkdownFiles() {
         List<MarkdownFile> files = markdownFileService.getAllMarkdownFiles();
-        return ResponseEntity.ok(files);
+        return R.success(files);
     }
     
     @Operation(summary = "删除Markdown文件")
     @DeleteMapping("/{id}")
-    public ResponseEntity<Void> deleteMarkdown(@PathVariable Long id) {
+    public R<Void> deleteMarkdown(@PathVariable Long id) {
         if (markdownFileService.deleteMarkdownFile(id)) {
-            return ResponseEntity.noContent().build();
+            return R.success();
         }
-        return ResponseEntity.notFound().build();
+        return R.fail();
     }
     
     @Operation(summary = "根据分组ID获取Markdown文件")
     @GetMapping("/grouping/{groupingId}")
-    public ResponseEntity<List<MarkdownFile>> getFilesByGroupingId(@PathVariable String groupingId) {
+    public R<List<MarkdownFile>> getFilesByGroupingId(@PathVariable String groupingId) {
         List<MarkdownFile> files = markdownFileService.getFilesByGroupingId(groupingId);
-        return ResponseEntity.ok(files);
+        return R.success(files);
     }
 }

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

@@ -18,8 +18,6 @@ public class MarkdownFile {
     private Long id;
     @Schema(description = "分组表id",implementation = Long.class)
     private Long groupingId;
-    @Schema(description = "用户ID",implementation = Long.class)
-    private Long userId;
     @Schema(description = "文本标题",implementation = String.class)
     private String title;
 

biji-houdaun/src/main/java/com/test/bijihoudaun/service/impl/MarkdownFileServiceImpl.java

@@ -11,7 +11,6 @@ import jakarta.annotation.Resource;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
-import java.time.LocalDateTime;
 import java.util.Date;
 import java.util.List;