Unable to request scans

On https://huggingface.co/spaces/zai-org/OpenVuln, I tried the following:

- I entered the URL of an open-source repo to request scanning (in particular, `https://github.com/Shroud-email/shroud.email`)
- Hitting enter opened a popup window that prompted me to log in, which I did
- The popup window then returns to https://huggingface.co/spaces/zai-org/OpenVuln, where I still appear signed out

So right now it seems impossible to actually request a scan of an open-source repo.

Reproduce the login and scan-request flow in the OpenVuln Hugging Face Space using the repository URL from the report. Trace what happens after the popup login and return to the Space, then verify that the session remains signed in and an open-source repository scan can be requested successfully.

Written by the indexing model from the issue text.