weiheng

Results 3 issues of weiheng

### Self Checks - [x] This is only for bug report, if you would like to ask a question, please head to [Discussions](https://github.com/langgenius/dify/discussions/categories/general). - [x] I have searched for existing...

👻 feat:rag

…xtract text mainly has the following issues: 1. Limited text extraction capability and insufficient support for tables and images 2. Lack of specialized Chinese processing optimization 3. No document structure...

size:L

因为想用国内的千问等模型