Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-10-13T10:56:12","request-id":"56f55737-a051-46e3-9482-dbdd2e782976","client-request-id":"56f55737-a051-46e3-9482-dbdd2e782976"}}}"