feat: resource depletion events and village event feed

Record resource_depleted narrative events when NPC or player extraction exhausts a ResourceNode. Add get_recent_events() for cross-NPC event queries. Village panel now shows the last 3 village-wide events as a readable feed below the resource counters, making shortages and depletion visible without opening the inspector.

world/ui/ui.gd

@@ -52,6 +52,17 @@ func _unhandled_key_input(event: InputEvent) -> void:
 
 
 func _on_village_changed(village: SimVillage) -> void:
+	var name_map := {}
+	for npc in simulation_manager.npcs:
+		name_map[npc.id] = npc.npc_name
+	var event_lines: Array[String] = []
+	for event in simulation_manager.get_recent_events(3):
+		event_lines.append(event.description(name_map))
+	var event_text := "\n".join(event_lines)
+	if event_text.is_empty():
+		event_text = ""
+	else:
+		event_text = "\n" + event_text
 	village_stats_label.text = (
 		"""
 	Village
@@ -65,6 +76,7 @@ func _on_village_changed(village: SimVillage) -> void:
 	Food Mod: %.2f
 	Safety Mod: %.2f
 	Knowledge Mod: %.2f
+	%s
 	"""
 		% [
 			round(village.food),
@@ -74,7 +86,8 @@ func _on_village_changed(village: SimVillage) -> void:
 			simulation_manager.get_starving_count(),
 			village.food_modifier,
 			village.safety_modifier,
-			village.knowledge_modifier
+			village.knowledge_modifier,
+			event_text
 		]
 	)