### What problem does this PR solve?
feat: delete the added model #503
feat: display an error message when the requested file fails to parse
#684
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
#666
feat: support DeepSeek
feat: preview word and excel
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
fix: cannot save the system model setting #468
feat: rename file in FileManager
feat: add FileManager
feat: override useSelector type
### Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
* feat: download documents on the document list page
* feat: add tooltip to Form.Item
* feat: set font family to inter
* feat: add loading to ChatContainer