Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-01-28T22:51:40","request-id":"febd82b5-871c-46dc-bdd7-1213caaa9c69","client-request-id":"febd82b5-871c-46dc-bdd7-1213caaa9c69"}}}"