feat: add simple village simulation of resources

simulation/SimulationManager.gd

@@ -1,6 +1,10 @@
 extends Node
 
 signal npc_task_changed(npc: SimNPC, old_task: String, new_task: String)
+signal village_changed(village: SimVillage)
+
+var village := SimVillage.new()
+
 const DEBUG_LOGS := true
 
 var npcs: Array[SimNPC] = []
@@ -68,3 +72,9 @@ func simulate_tick() -> void:
 				" | energy: ",
 				round(npc.energy)
 			)
+			
+	for npc in npcs:
+		village.apply_npc_task(npc)
+		village_changed.emit(village)
+	if DEBUG_LOGS:
+		print(village.get_summary())