dsh-minecraft-theme: Adding Minecraft Theme to DSH Web Interface

`dsh-minecraft-theme` is an MIT-licensed plugin for DeepSeek Harness (DSH) designed to transform the web interface into a Minecraft pixel-art style. The plugin offers 21 official block texture backgrounds, pixel fonts, MC-style buttons with click sound effects, and a built-in music player featuring 16 original tracks. Core functionalities include texture management (supporting import, rename, deletion, sorting, and persistent saving of custom textures) and local music playback (allowing import of local folders in any format without uploading data). Installation requires the dependency `@deepseek-ai/cordis` and can be directly installed by sending the GitHub address to DSH. The plugin operates as a static plugin, reading local resources within the host process, prioritizing workspace resources, and without...