feat(comment): 实现评论异步消费与内容存储

- 新增评论内容批量存储接口与实现
- 实现MQ消息消费端处理评论发布逻辑
- 支持一级与二级评论的层级关系构建
- 添加评论内容与元数据分离存储机制
- 集成分布式ID生成服务用于评论ID生成
- 完善评论相关DTO、DO、BO模型类
- 添加Cassandra数据库操作支持
- 实现Feign接口调用与事务控制

han-note-comment/han-note-comment-biz/src/main/resources/mapperxml/CommentDOMapper.xml

@@ -25,4 +25,31 @@
     id, note_id, user_id, content_uuid, is_content_empty, image_url, `level`, reply_total, 
     like_total, parent_id, reply_comment_id, reply_user_id, is_top, create_time, update_time
   </sql>
+
+    <select id="selectByCommentIds" resultMap="BaseResultMap" parameterType="list">
+        select id,
+               level,
+               parent_id,
+               user_id
+        from t_comment
+        where id in
+        <foreach collection="commentIds" open="(" separator="," close=")" item="commentId">
+            #{commentId}
+        </foreach>
+    </select>
+
+    <insert id="batchInsert" parameterType="list">
+        insert IGNORE into t_comment (id, note_id, user_id,
+                                      content_uuid, is_content_empty, image_url,
+                                      `level`, reply_total, like_total,
+                                      parent_id, reply_comment_id, reply_user_id,
+                                      is_top, create_time, update_time)
+        values
+        <foreach collection="comments" item="comment" separator=",">
+            ( #{comment.id}, #{comment.noteId}, #{comment.userId}, #{comment.contentUuid}, #{comment.isContentEmpty}
+            , #{comment.imageUrl}, #{comment.level}, #{comment.replyTotal}, #{comment.likeTotal}, #{comment.parentId}
+            , #{comment.replyCommentId}, #{comment.replyUserId}, #{comment.isTop}, #{comment.createTime}
+            , #{comment.updateTime})
+        </foreach>
+    </insert>
 </mapper>