Four knowledge layers

Do not collapse them. Explore and the ontology catalog do not compete on the same axis.

Layer	What it is	Where
Live operational graph	Recalculated snapshot (SQL queries) of what is happening	Console → Explore
Ontology catalog	RDF + SHACL + SPARQL catalog of a materialised graph	Ontology button → catalog explorer
Compiled code graph	Graph compiled from this repo's code	build artefact — not runtime truth
Episodic context	Episodic context	Agent private plane; governed publish still open

Replacing Explore with the catalog explorer would swap an operations panel for a file viewer. They integrate underneath (SHACL engine, SPARQL); the Society Graph stays.

Live graph vocabulary is closed: vocabulary and SHACL checks run in the quality pipeline. A type emitted but not declared fails CI.