// ---------------------------------------------------------------------------// Stdio transport factory — loaded only on demand// ---------------------------------------------------------------------------//// Kept in its own module so `connection.ts` never imports it eagerly at// module load. `@modelcontextprotocol/sdk/client/stdio.js` pulls in// `node:child_process` at evaluation time; under `@cloudflare/vitest-pool-workers`// that crashes workerd at module instantiation with SIGSEGV (prod bundles// tree-shake it away when `dangerouslyAllowStdioMCP: false`, tests do not).//// Callers that actually need stdio transport reach it via a dynamic import// in `connection.ts`. Remote-only consumers (cloud/marketing) never execute// the import and therefore never touch `node:child_process`.// --------------------------------------------------------------------------- import { StdioClientTransport } from "@modelcontextprotocol/sdk/client/stdio.js"; export type StdioTransportConfig = {  readonly command: string;  readonly args?: ReadonlyArray<string>;  readonly env?: Record<string, string>;  readonly cwd?: string;}; export const createStdioTransport = (config: StdioTransportConfig) =>  new StdioClientTransport({    command: config.command,    args: config.args ? [...config.args] : undefined,    env: config.env ? ({ ...process.env, ...config.env } as Record<string, string>) : undefined,    cwd: config.cwd,  });