The USE_CLIENT_PASSWORD_INVITES flag was hardcoded true. This removes the
dead else-branch (old is_temporary flow sending users to app.xtablo.com/login)
and always shows the Accès client form that routes new clients through
clients.xtablo.com/set-password with is_client: true.
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>