Replace example redirect URL in oauth documentation

[angrypig555]

Replaced "orpheus.gg" with "example.com" in the oauth documentation as there is a non-hack club related website on that domain.

Summary of the problem

In the oauth documentation (docs/oauth/oauth-apps.md) on line 16 there is an example redirect url. This url has an active website on it and is not affiliated with hackclub. It also may be confused with an official hackclub / hackatime domain. Later on in the documentation, example.com is used and this change would make the link look more like an example that should not be used in real code. Leaving the old url there may also be free advertising for that site / company.

Describe your changes

Changed the url on line 16 from orpheus.gg to example.com

[greptile-apps]

Greptile Summary

This PR replaces an active third-party domain in the OAuth documentation.

• Uses example.com for the redirect URI example.
• Aligns the setup instructions with later OAuth examples.

Confidence Score: 5/5

This looks safe to merge.

No blocking issues found in the changed documentation. The new URL is consistent with the guide's authorization and callback examples.

No application behavior changed, so tests are not needed for this edit.

T-Rex Logs

What T-Rex did

• Ran the OAuth redirect assertion harness to validate the current source against the expected behavior.
• Inspected the pre-change inconsistency captured in oauth-redirect-01-before.log to establish baseline behavior.
• Verified the after-change validation shows successful current-source validation with exact line evidence in oauth-redirect-02-after.log.
• Observed the Rails runtime blocker recorded in oauth-rails-runtime.log that affected runtime execution.

_{Ran code and verified through T-Rex}

Important Files Changed

Filename	Overview
docs/oauth/oauth-apps.md	Replaces the unaffiliated redirect host with the reserved example domain already used elsewhere in the OAuth guide.

_{Reviews (1): Last reviewed commit: "Replace example redirect URL in oauth do..." | Re-trigger Greptile}