Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-06-19T23:50:25","request-id":"852c3704-d978-4bfe-951e-9dd6c21a1194","client-request-id":"852c3704-d978-4bfe-951e-9dd6c21a1194"}}}"