@7dgroup/dsh-7d-tray-win: Windows system tray and silent launcher for DSH web

`@7dgroup/dsh-7d-tray-win` is a DSH system tray plugin designed specifically for Windows, aimed at simplifying the management of the DeepSeek Harness web service. When `dsh web` is running, the plugin displays a DeepSeek whale icon in the system tray and automatically disappears within 3 seconds after the service stops. Users can open the Web UI by double-clicking the icon; the plugin automatically reads the port from the runtime to avoid hardcoded limitations. The right-click menu provides quick actions, including opening the Web UI, the log directory, restarting the service, and exiting the service. Additionally, the plugin automatically maintains a `DSH.lnk` silent launcher on the desktop to launch the service without a window and automatically open the browser. This plugin is only applicable to Windows 10/11, on non-win...