Two guid-keyed tables (retail shape), CreateObject = canonical merge-upsert
for the data table (ACCWeenieObject-equivalent holding ALL server objects),
container membership index, retire _liveEntityInfoByGuid + EnrichItem. Settles
the handoff crux against the named decomp: retail is TWO tables, not one, so
acdream's WorldEntity + item-table split is already faithful — fix ingestion,
don't unify.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
969e55350b