Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-11-01T23:57:49","request-id":"02b4b3ee-f4bb-40a7-ad0d-d62c1ce01703","client-request-id":"02b4b3ee-f4bb-40a7-ad0d-d62c1ce01703"}}}"