Problem
现在历史对话，只能搜索标题，标题又不能自定义修改，导致会话一多，找不到之前处理过的历史对话，非常的不方便，需求可以全文搜索。
Solution
全文搜索
Use Case
When would you use this?
Priority
-
High - Blocking issue -
Medium - Important improvement -
Low - Nice to have
Additional Info
(Optional: screenshots, examples, links)