feat(admin): 实现评论数据导入功能并优化界面

- 添加导入评论的API接口和前端实现
- 在数据管理页面增加导入功能，支持选择来源和上传JSON文件
- 优化导航菜单和页面标题的命名
- 移除调试用的console.log语句
- 更新相关API文档

widget/src/components/CommentItem.js

@@ -251,11 +251,8 @@ export class CommentItem extends Component {
   }
 
   handleReply() {
-    console.log('[CommentItem] handleReply called, comment.id:', this.props.comment.id);
     if (this.props.onReply) {
       this.props.onReply(this.props.comment.id);
-    } else {
-      console.warn('[CommentItem] onReply callback is missing!');
     }
   }
 

widget/src/components/CommentList.js

@@ -41,11 +41,6 @@ export class CommentList extends Component {
 
   render() {
     const { comments, loading, error, currentPage, totalPages } = this.props;
-
-    console.log('[CommentList] render called, comments:', comments);
-    console.log('[CommentList] comments.length:', comments?.length);
-    console.log('[CommentList] loading:', loading);
-
     // 清空容器
     this.empty(this.container);
 
@@ -93,7 +88,6 @@ export class CommentList extends Component {
       this.commentItems.clear();
 
       comments.forEach((comment, index) => {
-        console.log(`[CommentList] Rendering comment ${index}:`, comment);
         const commentItem = new CommentItem(commentsContainer, {
           comment,
           replyingTo: this.props.replyingTo,
@@ -113,8 +107,6 @@ export class CommentList extends Component {
         this.commentItems.set(comment.id, commentItem);
       });
 
-      console.log('[CommentList] Final commentsContainer children count:', commentsContainer.children.length);
-      console.log('[CommentList] Final commentsContainer innerHTML:', commentsContainer.innerHTML);
       root.appendChild(commentsContainer);
     } else {
       // 空状态