Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-03-04T13:40:56","request-id":"ec1e9e53-7ee7-4b3d-a812-75dba25d0609","client-request-id":"ec1e9e53-7ee7-4b3d-a812-75dba25d0609"}}}"