feat: replace activity markers with typed sites

tests/resource_node_player_parity_test.gd

@@ -68,6 +68,14 @@ func _run() -> void:
 		pantry_state.get_amount(SimulationIds.RESOURCE_FOOD) < pantry_food_before,
 		"Player should eat from the typed pantry StorageNode"
 	)
+	var guard_site := main_scene.get_node("JajceWorld/WorldObjects/ActivitySites/GuardPost") as ActivitySite
+	player.global_position = guard_site.get_interaction_position()
+	var safety_before: float = simulation_manager.village.safety
+	player.try_interact()
+	_check(
+		simulation_manager.village.safety > safety_before,
+		"Player should help guard from the typed GuardPost ActivitySite"
+	)
 
 	if failures.is_empty():
 		print("[TEST] ResourceNode player parity passed")