feat: scale village queries and enrich Jajce center

docs/ACTION_SYSTEM_ARCHITECTURE.md

@@ -5,6 +5,7 @@
 ```text
 SimulationManager tick
     -> ActionExecutionSystem advances needs and working progress
+    -> SimulationPopulationView refreshes transient living/starving indexes
     -> VillageOpportunitySystem re-derives the current capable helper
     -> ActionSelectionSystem chooses an action when the NPC is idle
     -> SimulationManager stores the selected action
@@ -25,6 +26,8 @@ SimulationManager tick
 - queries `RelationshipSystem` after personal survival/schedule overrides, so a
   trusted starving acquaintance can redirect ordinary work toward food
   gathering while the pantry is low;
+- consumes the manager's current `SimulationPopulationView` for that social
+  query instead of rebuilding an all-NPC lookup for each idle decision;
 - accepts the current ephemeral `OpportunityHelperResult` and, only for its
   matching NPC, selects the reported ordinary gather/deposit action after
   urgent self-care and sleep/meal schedule branches;
@@ -71,7 +74,10 @@ SimulationManager tick
 SimulationManager remains the orchestrator and event boundary. It owns
 simulation records, invokes the focused systems, stores selected actions and
 targets, and translates presentation callbacks into simulation transitions.
-It also publishes the latest `ActionSelectionResult` for presentation; the UI
+It also owns one disposable `SimulationPopulationView`, rebuilt at tick start
+and refreshed after each NPC advances so interleaved decision semantics remain
+unchanged.
+The manager publishes the latest `ActionSelectionResult` for presentation; the UI
 does not recompute decisions. Each idle selection re-derives the capable helper
 instead of consulting persisted assignment state. At completion it atomically
 pays any definition-backed stored-resource cost before applying the action
@@ -128,6 +134,8 @@ simulation ticks.
 - stores the exact event ID as the trust cause and ignores replayed or older
   events;
 - selects trusted starving subjects deterministically for action selection;
+- uses a supplied per-tick population view when available, with a compatibility
+  fallback for isolated callers;
 - does not choose actions, perform transactions, or format presentation text.
 
 These collaborators are `RefCounted` rule services, not additional scene-tree