feat: add taskbook onboarding UI

scenes/characters/NPCController.gd

@@ -64,6 +64,9 @@ func _physics_process(_delta: float) -> void:
 
 # 处理玩家交互，展示气泡并向全局事件系统广播。
 func interact() -> void:
+	var taskManager := get_node_or_null("/root/TaskManager")
+	if taskManager != null and taskManager.has_method("report_activity"):
+		taskManager.call("report_activity", "facility_interacted", "npc")
 	show_bubble(dialogue)
 	var eventSystem: Node = get_node_or_null("/root/EventSystem")
 	if eventSystem != null: