[Task] Make a page to support sse stream return at the back end

We can make a small robot floating window on the front page, and after clicking on it, we can make an ai call, as shown in the figure below
After opening, there is a pop-up window, similar to wechat chat

supporting function：
1、Support back-end sse flow return。
2、Similar to wechat chat, you can communicate with ai
3、Can support pop-up full screen, easy to copy ai answer content

request path：/api/ai/get
request param name： text
request param type ： string

### Task List

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