Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-10-17T12:20:17","request-id":"8b16751e-aee9-4713-b429-790bef7072c7","client-request-id":"8b16751e-aee9-4713-b429-790bef7072c7"}}}"