[Feature] richtext can support poptip when text is too long

### What problem does this feature solve?

<img width="812" alt="image" src="https://github.com/user-attachments/assets/ffb112da-c2bc-4da8-a32f-09526e67a130">

<img width="887" alt="image" src="https://github.com/user-attachments/assets/319a39c4-b36c-4547-bcba-5738eb7172ad">


### What does the proposed API look like?

richtext 支持poptip:
1. 整体只要有省略，就能够展示poptip
2. 进阶需求，能够根据分段是否有省略展示poptip