Summary

This PR is intended to update the OAuth 2.0 examples in the auth setup docs to avoid using a custom basepath as the hosted documentation URL, which was explicitly addressed in PR #4387.

Because of the previous PR, the page states that auth is not supported when using a custom basepath such as example.com/docs, but the OAuth example currently uses foo.com/docs as the docs URL. This could make the OAuth setup appear supported for deployment in a way that the same page says is unsupported.

Documentation Changes

• Changed the OAuth example docs host from foo.com/docs to docs.foo.com
• Updated the corresponding encoded returnTo value in the Logout URL
• Applied the same fix to the English, Chinese, Spanish, and French auth setup pages

Notes

This is a documentation-only consistency fix. I left the api.foo.com/docs/user-info example unchanged because that appears to be an application/API endpoint path, not the hosted Mintlify docs path.

For Reviewers

When reviewing documentation PRs, please consider:

✅ Technical accuracy

• Code examples work as written
• Commands and configurations are correct
• Links resolve to the right destinations
• Prerequisites and requirements are accurate

✅ Clarity and completeness

• Instructions are clear and easy to follow
• Steps are in logical order
• Nothing important is missing
• Examples help illustrate the concepts

✅ User experience

• A new user could follow these docs successfully
• Common gotchas or edge cases are addressed
• Error messages or troubleshooting guidance is helpful