Cyberfr connexion à Graph Microsoft : ok string(237) "{"error":{"code":"InvalidAuthenticationToken","message":"Access token is empty.","innerError":{"date":"2026-11-15T09:39:17","request-id":"b21e8ca5-56f1-4768-ba10-71e71f96c005","client-request-id":"b21e8ca5-56f1-4768-ba10-71e71f96c005"}}}"