Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-09-30T23:11:33","request-id":"cd858919-ecdf-408b-ac9c-1908ab5012c7","client-request-id":"cd858919-ecdf-408b-ac9c-1908ab5012c7"}}}"