[Bug]: Passkey login fails to preserve redirect_url, redirecting to /unread instead of the original destination

[segln]

Bug Summary

Redirection fails after passkey login.

Description

If the user authenticates with password the redirect works flawlessly but if the user authenticates with passkey, redirect_url state is ignored after authentication and the user is incorrectly routed to /unread.

Steps to Reproduce

1. Run Miniflux behind a reverse proxy with HTTPS enabled (required for passkey).
2. Navigate to https://rss.example.com/bookmarklet?uri=https://example.com/rss
3. Authenticate using a passkey.

Expected Behavior

Upon successful passkey authentication, miniflux should navigate the user to the originally requested URL (/bookmarklet?uri=https://example.com/rss).

Actual Behavior

redirect_url parameter is dropped during the state transition. User is redirected to /unread.

Version

2.3.3

Browser

Chrome, Firefox (Clean profile)

Checklist

• I have searched existing issues to ensure this bug hasn't been reported before.