fix: 后端代码格式化

backend/src/main/java/com/openisle/dto/DraftRequest.java

@@ -1,14 +1,14 @@
 package com.openisle.dto;
 
-import lombok.Data;
-
 import java.util.List;
+import lombok.Data;
 
 /** Request body for saving a draft. */
 @Data
 public class DraftRequest {
-    private String title;
-    private String content;
-    private Long categoryId;
-    private List<Long> tagIds;
+
+  private String title;
+  private String content;
+  private Long categoryId;
+  private List<Long> tagIds;
 }