pub fn load_certified(path: &Path) -> Result<CertInfo, String>Expand description
Load a certified KV-dictionary artifact from a framed .q42art file, verify its provenance gate
(kind == KvDictionary AND passed == true), and install it. Fail-closed: a bad frame, wrong artifact
kind, or an artifact that did NOT pass its ΔPPL gate is refused — the engine only runs certified
artifacts. Returns the certified gate numbers on success.