Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-06-15T19:58:48","request-id":"03d658fd-6429-461c-98a9-13e704776a8b","client-request-id":"03d658fd-6429-461c-98a9-13e704776a8b"}}}"