feat: 添加评论功能

src/components/EventCommentSection/index.js

@@ -0,0 +1,10 @@
+// src/components/EventCommentSection/index.js
+/**
+ * 事件评论区组件统一导出
+ */
+
+export { default } from './EventCommentSection';
+export { default as EventCommentSection } from './EventCommentSection';
+export { default as CommentList } from './CommentList';
+export { default as CommentItem } from './CommentItem';
+export { default as CommentInput } from './CommentInput';