MD编辑器更新

UI更新

src/main/java/com/accounting/dto/NoteResponse.java

@@ -13,6 +13,9 @@ public class NoteResponse {
 
     private Long id;
 
+    /** 所属目录 ID，null = 未分类 */
+    private Long folderId;
+
     private String title;
 
     private String content;