Luxury Commerce Demo with AI Shopping Assistant

The problem

A shopping assistant that can change a cart or place an order on its own is a liability, and checkout has to stay correct when people double-click, refresh or buy the last item at the same time.

What I built

• Guest and member shopping with ASP.NET Core Identity, saved carts and per-owner locking.
• A checkout bound to the exact summary the shopper saw: resubmitting cannot create a second order, and stock is reduced atomically — concurrency proven by tests on a real SQL Server.
• A text and press-to-speak assistant with twelve fixed tools: a safety check runs before any model call, the server writes the answer, and cart changes are proposals the shopper confirms.
• Photo matching that strips image metadata, reads only the packaging text with a vision model and matches products by rules.
• A protected admin with approval workflows and an append-only audit trail; no product claim is shown until its exact text has been approved.