dsh-restart: DeepSeek Harness Web Host Restart Tool

The DSH client plugin `dsh-restart` provides a convenient Web host restart feature. Users can restart with one click from the settings interface or via the API (POST `/dsh-restart/now`). The plugin supports process supervision handling and allows restart behavior to be controlled through environment variables. The installation command is `dsh plugin --profile web add github:xingyingyuzhui/dsh-restart`; during development, using a local linked path is recommended to make changes take effect in real time.