/add-mcp-tool

Add a new MCP tool to the nucleo MCP server for Claude Desktop integration.

Instructions

1. Ask for the tool name and what CLI command it wraps
2. Add a params struct in src/mcp/tools.rs
3. Add a #[tool] method to the NucleoServer impl using the Parameters<T> extractor
4. The tool should call self.run() or self.run_owned() with the CLI args
5. Run cargo check to verify