Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-10-20T15:23:08","request-id":"44fdcd11-6036-414b-a4dc-4840cae72b62","client-request-id":"44fdcd11-6036-414b-a4dc-4840cae72b62"}}}"