@haibala-aii/dsh-extensions-wallpaperskin: Use local Wallpaper Engine media to change the background of DeepSeek Harness Web

`@haibala-aii/dsh-extensions-wallpaperskin` is a local wallpaper plugin designed specifically for the DeepSeek Harness (DSH) web interface, maintained by `haibala-aii` and licensed under the MIT license. Its core function is to directly use local Wallpaper Engine media as DSH backgrounds, requiring no remote APIs or file uploads, thereby ensuring data privacy. It supports automatic discovery of Steam libraries and Wallpaper Engine local and Workshop projects on Windows systems, and is compatible with video formats such as MP4 and WebM, as well as static image formats such as PNG and JPEG. The plugin is integrated into DSH's Extens...