Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-03-12T15:48:23","request-id":"7ae1aca5-8106-42d1-8329-832e94bf0132","client-request-id":"7ae1aca5-8106-42d1-8329-832e94bf0132"}}}"