/// MCP (Model Context Protocol) client integration — Gateway
////// Connects to external MCP servers and exposes their tools to the model.
/// Servers are configured in config.toml and spawned as child processes.
pubmodadd;modclient;pubmodmanager_ref;modregistry;modserver_manager;modtransport;pubuseadd::{add_server, remove_server};pubuseclient::{ContentBlock, McpClient, McpToolDef, McpToolResult};pubuseserver_manager::McpServerManager;