Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2025-11-29T04:34:10","request-id":"521a8749-75c0-49b6-8e42-347263b24f29","client-request-id":"521a8749-75c0-49b6-8e42-347263b24f29"}}}"