feat(image): 添加图片删除功能并优化 Markdown 编辑器

- 在 ImageController 中添加删除图片的接口
- 在 ImageService 中实现删除图片和批量更新图片 ID 的方法
- 在前端集成复制代码插件并优化 Markdown 编辑器配置
- 修复后端分组相关接口的参数类型问题

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

@@ -35,17 +35,20 @@ public class GroupingController {
     @Operation(summary = "更新分组名称")
     @PutMapping("/{id}")
     public R<Grouping> updateGrouping(
-            @PathVariable Long id, 
+            @PathVariable String id,
             @RequestBody Grouping grouping) {
-        grouping.setId(id);
+
+        long l = Long.parseLong(id);
+        grouping.setId(l);
         Grouping updated = groupingService.updateGrouping(grouping);
         return R.success(updated);
     }
 
     @Operation(summary = "删除分组")
     @DeleteMapping("/{id}")
-    public R<Void> deleteGrouping(@PathVariable Long id) {
-        groupingService.deleteGrouping(id);
+    public R<Void> deleteGrouping(@PathVariable String id) {
+        Long idLong = Long.parseLong(id);
+        groupingService.deleteGrouping(idLong);
         return R.success();
     }
 }

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

@@ -13,6 +13,8 @@ import org.springframework.web.bind.annotation.*;
 import org.springframework.web.multipart.MultipartFile;
 
 import java.io.IOException;
+import java.util.List;
+
 @Tag(name = "markdown接口")
 @RestController
 @RequestMapping("/api/images")
@@ -28,14 +30,39 @@ public class ImageController {
     })
     @PostMapping
     public R<Image> uploadImage(
-            @RequestParam(required = false) Long markdownId,
+            @RequestParam(required = false) String markdownId,
             @RequestParam("file") MultipartFile file) {
 
         try {
-            Image image = imageService.uploadImage(markdownId, file);
+            Long markdownIdLong = Long.parseLong(markdownId);
+            Image image = imageService.uploadImage(markdownIdLong, file);
             return R.success(image);
         } catch (IOException e) {
             return R.fail();
         }
     }
+
+    @Operation(summary = "根据id删除图片")
+    @DeleteMapping("/{id}")
+    public R<Void> deleteImage(@PathVariable Long id) {
+        boolean result = imageService.deleteImage(id);
+        if (result) {
+            return R.success();
+        } else {
+            return R.fail();
+        }
+    }
+
+    @Operation(summary = "根据url删除图片")
+    @DeleteMapping
+    public R<Void> deleteImageByUrl(@RequestParam String url) {
+        boolean result = imageService.deleteImageByUrl(url);
+        if (result) {
+            return R.success();
+        } else {
+            return R.fail();
+        }
+    }
+
+
 }