shoppin: AI discovery & try-on

1. Download and sign up, then set your sizes, favorite brands, style goals, and budget to personalize your feed. 2. Explore the discovery feed or use search; you can also upload a photo to find visually similar items across stores. 3. Open Try On, grant camera access, select an item, switch colors and patterns, and preview how it looks on you in real time. 4. Add your measurements or select past sizes to get brand-specific fit advice and the best size recommendation. 5. Save to wishlist, compare prices, set drop alerts, and proceed to checkout on the retailer site; track orders and manage returns from your profile.