Feat: support openapi (#12521)

### What problem does this PR solve?
Support OpenAPI interface description.

The issue of not supporting the Swagger interface after upgrading the
system framework from Flask to Quart has been resolved.

Resolved https://github.com/infiniflow/ragflow/issues/5264

### Type of change
- [x] New Feature (non-breaking change which adds functionality)

---------

Co-authored-by: puhaiyang <“761396462@qq.com”>

pyproject.toml

@@ -152,6 +152,7 @@ dependencies = [
     "pygithub>=2.8.1",
     "asana>=5.2.2",
     "python-gitlab>=7.0.0",
+    "quart-schema==0.23.0",
 ]
 
 [dependency-groups]