{"success":true,"user":{"id":0,"username":"demo","email":"demo@example.com","first_name":"Demo","last_name":"User","role":"viewer","is_active":true,"is_superuser":false,"created_at":"2026-06-19T12:44:42.933Z","updated_at":"2026-06-19T12:44:42.934Z"},"is_demo":true}