Adds jest, ts-jest, ts-node, and @types/jest as devDependencies and creates
jest.config.ts with the ts-jest preset. `npm test` exits 0 with no test files.
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>