dsh-live-mcp: DeepSeek Harness Session-Level MCP Control Plugin

dsh-live-mcp is a plugin designed for DeepSeek Harness (DSH) to address the fragmentation issue in MCP server management. It provides session-level, fine-grained control, allowing users to independently enable or disable MCP tools within a single conversation without affecting the global configuration. The plugin features real-time activation, visualized status, support for multiple MCP forms, zero-intrusion installation, and configuration persistence. It is suitable for developers who need to isolate tool invocations across different sessions.