[Bug] Website Sign-in Redirects to GitHub 404 Instead of Authorization Flow #722

Summary

Clicking the "Sign in" button on the frontendchecklist site redirects to a GitHub 404 page instead of initiating the GitHub OAuth authorization flow. This completely blocks user authentication.

Environment

• Browser: Chromium
• OS: MacOS Tahoe 26.1

Steps to Reproduce

1. Go to https://frontendchecklist.io
2. Click the "Sign in" button (top right of navigation)
3. 404 Page opens up