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>

backend/cli.py

@@ -0,0 +1,36 @@
+import click
+
+from app.database import SessionLocal
+from app.scrapers.albert_heijn import scrape_query
+
+
+@click.group()
+def cli():
+    pass
+
+
+@cli.command("scrape-ah")
+@click.option(
+    "--query",
+    "queries",
+    multiple=True,
+    required=True,
+    help="Search term to scrape (repeatable)",
+)
+def scrape_ah(queries: tuple[str, ...]):
+    """Scrape Albert Heijn product prices for one or more search queries."""
+    db = SessionLocal()
+    try:
+        for query in queries:
+            click.echo(f"Scraping Albert Heijn: {query!r}")
+            run = scrape_query(db, query)
+            if run.status == "success":
+                click.echo(f"  {run.products_found} products stored (run id={run.id})")
+            else:
+                click.echo(f"  Failed: {run.error_message}", err=True)
+    finally:
+        db.close()
+
+
+if __name__ == "__main__":
+    cli()