DeepSeek Harness GitHub Search and Operation Console Plugin

`dsh-github-search` is an all-in-one GitHub plugin designed specifically for the DeepSeek Harness Web environment, consolidating search, browsing, judgment, cloning, and Agent integration into the sidebar. It supports repository/code search, sandboxed README rendering, one-click cloning with Git/Zip fallback, Agent judgment, and social features such as Star/Fork. It also includes a Discover page, history, and Token configuration; without a Token, search is rate-limited to approximately 10 requests per minute.