bug: Apple OAuth login not working

[dmetzner]

Description

Apple OAuth login is currently not functional. Clicking the Apple login button fails to authenticate users.

Steps to reproduce

1. Go to /app/login
2. Click the Apple icon under "Or you can join with"
3. Authentication fails

Expected behavior

Users should be able to log in via their Apple account.

Temporary workaround

Apple login button is hidden until the issue is resolved.