- Add package.json with express dependency and npm start script
- Add index.js: Express server on port 3000 with /todos and /healthz endpoints
- /todos returns 3 hardcoded todo objects {id, title, done}
- /healthz returns {ok: true}
- Update README.md with Run section
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
