refactor: route core definitions through content catalog

simulation/state/WorldEventRecord.gd

@@ -3,6 +3,7 @@ extends RefCounted
 
 const SCHEMA_VERSION := 1
 const ENTITY_TYPE_NPC := &"npc"
+const ENTITY_TYPE_PLAYER := &"player"
 const ENTITY_TYPE_WORLD := &"world_entity"
 const ROLE_ACTOR := &"actor"
 const ROLE_SOURCE := &"source"
@@ -102,9 +103,12 @@ static func from_economic_event(
 	if economic_event == null:
 		return null
 	var economic_data := economic_event.to_dictionary()
+	var actor_id := int(economic_data["actor_id"])
+	var actor_type := (
+		ENTITY_TYPE_PLAYER if actor_id == SimulationIds.PLAYER_ACTOR_ID else ENTITY_TYPE_NPC
+	)
 	var participants: Dictionary = {
-		ROLE_ACTOR:
-		WorldEntityRef.create(ENTITY_TYPE_NPC, StringName(str(int(economic_data["actor_id"]))))
+		ROLE_ACTOR: WorldEntityRef.create(actor_type, StringName(str(actor_id)))
 	}
 	var source_id := StringName(economic_data["source_id"])
 	if not source_id.is_empty():