dataArt-typescript

1. Introduce static typing and modular code.
2. Initialize TypeScript (create tsconfig.json with strict mode).
3. Convert script.js → src/index.ts: -> Define interfaces/types for your event data. -> Use ES modules: separate fetcher.ts, renderer.ts, modal.ts, etc.
4. Add build scripts (tsc or via bundler) to compile TS → JS into a dist/ folder.
5. Verify the app still works in the browser using the compiled JS.