Create: Heat Pipe

更新日志：

新增：佩戴机械动力工程师护目镜并对准导热管时，屏幕中央实时显示热力网络总热量。采用客户端实时计算，零网络开销、无时序延迟。

Added: an Engineer's Goggles overlay that shows the network's total heat in real time when looking at a Heat Pipe — computed client-side with zero network cost and no sync delay.