DeepSeek Harness (DSH) Plugin: dsh-s-m-c-center (3-in-1 Workbench)

The `dsh-s-m-c-center` plugin provides DeepSeek Harness (DSH) with a unified Web UI management interface for centrally configuring skills, MCP servers, and local CLI tools. It requires no source code modifications and supports features such as browsing and switching skills, actual MCP connection testing, and automatic CLI discovery and registration. Installed via npm and thoroughly tested, the plugin aims to simplify DSH workflow configuration and improve developer efficiency in tool management.