add-to-cart

# Add to Cart Template

Tests adding items to cart and quantity updates.

## Prerequisites
- Authenticated (or guest) session
- Product: ID `{{productId}}`, name `{{productName}}`, price `{{productPrice}}`
- App running at `{{baseUrl}}`

---

## TypeScript

```typescript
import { test, expect } from '@playwright/test';

test.describe('Add to Cart', () => {
  test.beforeEach(async ({ page }) => {
    await page.goto('{{baseUrl}}/products/{{productId}}');
  });

  // Happy path: add single item