feat: derive capable opportunity helpers

docs/SIMULATION_STATE_SCHEMA.md

@@ -196,6 +196,12 @@ lasting during deterministic memory maintenance. Resolution or invalidation
 releases that fact back to the normal bounded-retention rules; neither deletes
 objective event or opportunity history.
 
+`OpportunityHelperResult` is deliberately absent from this schema. It is
+re-derived from the open opportunity plus current NPC knowledge, directed
+relationship, inventory, action-definition, storage-capacity, and finite-
+resource records. Save/restore regressions require the same helper/action/route
+result and an unchanged checksum before and after querying.
+
 ## Resource authority
 
 `SimulationManager` owns `ResourceStateRecord` instances independently of the
@@ -212,7 +218,9 @@ defaults.
 ResourceStateRecord v3 adds `safety_risk`, `comfort_distance`, and
 `discovery_priority` so unloaded resources keep the same target-selection
 meaning after save/restore. Nested v1 and v2 resource records are migrated
-explicitly.
+explicitly. Current-schema parsing also canonicalizes numeric, boolean, and ID
+variants so a freshly registered finite source retains a byte-stable checksum
+after a JSON round trip.
 
 ## Local quicksave boundary