The Zitadel login is based on oidc, this means, that you are always redirected to the login from your app and then back to your application. if you send a prompt=create in the authorize request, the user will be redirected to the register page in Zitadel directly instead of the login page. once everything is compelted the user will be sent to the redirect url, the redirect url needs to be configured on the app and match exactly