Initial commit: installable PWA hello world

React + TypeScript + Tailwind v4 + shadcn/ui frontend (client), Express +
better-sqlite3 backend (server) in a pnpm workspace. Includes vite-plugin-pwa
manifest, service worker, and iOS install meta tags. GET /api/hello increments a
visit counter in SQLite; backend serves the built client in production.

README.md

@@ -0,0 +1,47 @@
+# Pocket Pascal
+
+A minimal, installable **Progressive Web App** that renders "Hello, World!" and
+reads/writes a visit counter in **SQLite** via a small Express backend.
+
+- **Frontend:** Vite + React + TypeScript + Tailwind v4 + shadcn/ui
+- **Backend:** Express + TypeScript + better-sqlite3
+- **PWA:** installable on Android (Chrome) and iOS (Safari), works offline
+
+## Quick start
+
+```bash
+pnpm install
+pnpm dev
+```
+
+Open <http://localhost:5173>. The Vite dev server proxies `/api` to the backend on
+port 3001, and the visit counter increments on each load (proving the SQLite
+round-trip).
+
+## Production / install test
+
+```bash
+pnpm build
+pnpm start
+```
+
+Open <http://localhost:3001> — the backend serves the built client. Use
+DevTools → Application → Manifest to confirm PWA installability, then
+"Add to Home Screen". (On a real device, off localhost, HTTPS is required.)
+
+## Scripts
+
+| Command         | Description                                    |
+| --------------- | ---------------------------------------------- |
+| `pnpm dev`      | Run client + backend concurrently              |
+| `pnpm build`    | Build both packages                            |
+| `pnpm start`    | Run the production backend (serves the client) |
+| `pnpm lint`     | Lint all packages                              |
+| `pnpm typecheck`| Type-check all packages                        |
+
+See [`AGENTS.md`](./AGENTS.md) for the full contributor guide.
+
+## Requirements
+
+- Node.js >= 22
+- pnpm