dsh-mcp-master: Session-Level MCP Server Management for DeepSeek Harness

`dsh-mcp-master` is a workflow plugin for DeepSeek Harness (DSH) designed to address session-level management of MCP servers. It allows users to configure separate tool sets for different sessions by using a selector in the Composer line, and supports loading configurations from global and project directories. The plugin provides OAuth authentication, a trust review mechanism, environment variable resolution, and support for multiple transport protocols. After installation, DSH must be restarted; project servers must be trusted before they can run, and tokens are stored in local sensitive files.