Code Reasoning MCP Server

# Testing in Code-Reasoning The `test/` directory houses the MCP regression harness that exercises the compiled server via the official SDK client. - `mcp-regression.test.ts` spawns `dist/index.js` through the `StdioClientTransport`, performs capability negotiation, and verifies tool and prompt flows end to end. - Run the suite with `npm run test:regression`, or include it in the default `npm test` command which runs lint plus the harness. Add new request scenarios here to grow coverage over time.