* ds-querier: return QDR instead of k8s error After parseQuery we know the request is a valid k8s request but we don't know if the query is valid, therefore this change returns a QDR that other systems, e.g. alerting ruler, can de-serialize properly. Co-authored-by: Gábor Farkas <gabor.farkas@gmail.com> * ds-querier: fix tests Co-authored-by: Sarah Zinger <sarah.zinger@grafana.com> * tweak status * refactor refID to empty --------- Co-authored-by: Gábor Farkas <gabor.farkas@gmail.com> Co-authored-by: Sarah Zinger <sarah.zinger@grafana.com>