dsh-plug-manager: DeepSeek Harness Plugin Manager

dsh-plug-manager is the plugin manager for DeepSeek Harness, providing a centralized web interface to browse, search for, and install GitHub `dsh-plugin` plugins. It supports npm-first resolution and automatic source code parsing, along with proxy configuration, agent tool invocation, and local API capabilities. It requires pnpm to be installed in the host environment. The service must be restarted after installation, and plugins can be installed, updated, or removed via the web UI or command line.