DSH Plugin Panel dsh-plugin-panel: Browse, Search, and Install Community Plugins via Web GUI

`dsh-plugin-panel` is the DSH Community Plugin Panel, integrated into the DeepSeek Harness Web GUI, aiming to unify plugin discovery and local state management. Users can browse and search for community plugins, Skills, client UI, and development resources via the sidebar; the panel supports Chinese and English keyword search, semantic vector search (which requires embedding model API configuration), favorites management, and the viewing of installed status. The panel performs installation, updates, and uninstallations by forwarding the official `dsh plugin` command; it automatically backs up critical configuration files before execution and rolls back on failure to ensure operational safety. Additionally, the panel provides an environment self-check (verifying dsh CLI and pnpm) and self-update functionality. Installation requires adding the repository to a specific profile via GitHub, and the changes take effect after restarting the GUI.