عرض عملي: ترقيم وترتيب آمنان

خطوة بخطوة

1. Add page, size, and sort parameters with defaults to GET /products.
2. Cap size at 100 and clamp page to 0 or more.
3. Add the sort allow-list with a tie-breaker on id.
4. Planned mistake: ?sort=password (or any unknown field) is accepted and crashes. Fix: reject with 400.
5. Return items plus page metadata and test with size=1000 and a bad sort field.