dsh-webview-wrapper: Native Desktop Window Wrapper for DeepSeek Harness

`dsh-webview-wrapper` is an open-source plugin for DeepSeek Harness (DSH), designed to package DSH’s web interface into a native desktop application. It uses the WebviewJS engine (WebView2/WebKit) to create native windows and provides system tray integration, window hide/show, and service takeover capabilities. Released under the MIT license, the plugin allows developers to gain a native experience without forking the main project. It is currently in an early stage and has functional limitations, including fixed window size, no native notifications, and no configuration interface.