Initial project scaffold

Full-stack Dutch supermarket price tracker with FastAPI backend,
PostgreSQL/SQLAlchemy, Albert Heijn scraper, and Next.js frontend.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/next.config.ts

@@ -0,0 +1,5 @@
+import type { NextConfig } from "next";
+
+const nextConfig: NextConfig = {};
+
+export default nextConfig;