Gmail OAuth server running.

Open this URL to authorize:
https://accounts.google.com/o/oauth2/v2/auth?client_id=236853836785-ie7ekv4uitqag9qb06ov0rlv3sealv14.apps.googleusercontent.com&redirect_uri=https%3A%2F%2Fauth.novaclaw.de%2Foauth2callback&response_type=code&scope=https%3A%2F%2Fwww.googleapis.com%2Fauth%2Fgmail.send&access_type=offline&prompt=consent

Redirect URI expected:
https://auth.novaclaw.de/oauth2callback