dsh-local-link: DeepSeek Harness Local LAN Access Plugin

`dsh-local-link` is a lightweight DSH plugin developed by donoteatme, designed to address the need for multi-device session viewing in Web mode. It requires no relay server or cloud service and enables devices on the same local area network to connect to the current session by scanning a QR code or using a one-time link. The plugin supports mobile devices and automatically switches to a responsive view when the viewport width is smaller than 834 CSS pixels. It is easy to set up and use, with a default invitation code that is valid for one-time use only, intended for trusted private networks.