Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-03-25T18:56:40","request-id":"b9d60e3b-8073-47c6-b767-76e5184db1f8","client-request-id":"b9d60e3b-8073-47c6-b767-76e5184db1f8"}}}"