feat: add structured economic events

player/npc/NpcVisual.gd

@@ -12,6 +12,7 @@ const DEBUG_LOGS := true
 @export var stuck_timeout := 1.5
 
 @onready var nav_agent: NavigationAgent3D = $NavigationAgent3D
+@onready var carried_food_visual: MeshInstance3D = $CarriedFood
 
 var has_reported_arrival := false
 var sim_id: int = -1
@@ -41,6 +42,12 @@ func setup_from_sim(npc: SimNPC) -> void:
 	npc_name = npc.npc_name
 	profession = npc.profession
 	name = "NPC_%s_%s" % [sim_id, npc_name]
+	set_carried_food_visible(
+		npc.get_inventory_amount(SimulationIds.RESOURCE_FOOD) > 0.0
+	)
+
+func set_carried_food_visible(is_visible: bool) -> void:
+	carried_food_visual.visible = is_visible and not is_dead_visual
 
 func set_target_position(pos: Vector3) -> void:
 	path_request_id += 1
@@ -167,6 +174,7 @@ func _report_navigation_failure_once() -> void:
 
 func apply_dead_visual_state() -> void:
 	is_dead_visual = true
+	carried_food_visual.visible = false
 	path_request_id += 1
 	velocity = Vector3.ZERO
 	current_path = PackedVector3Array()