Add express as a dependency and @types/express as a devDependency.
Create empty src/index.ts; tsc --noEmit passes cleanly.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Add package.json with build/start/dev/test scripts, tsconfig.json with
strict mode and CommonJS target, .gitignore, and CLAUDE.md documenting
the new project structure and commands.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>