Administration: Daten ändern

(Inhalt folgt)

Unauthenticated: clean login card, no nav visible, no hamburger
- Click Anmelden: Netlify Identity modal opens (magic link via email)
- After login: redirected to /philosophie/, first name shown in header, full nav visible
- Logout button: logs out and returns to login screen
- Magic links (invites, password reset): token in URL hash is handled before any redirect kicks in