SixtenE/examen ? reverse-engineered prompt

Build me a web app where someone can upload a photo and get back a ranked list of visually similar sold auction items from Auctionet.

I want the app to show each match with the sold price and a link to the original listing, and I want the results to stay stable even if the source site changes later. The app should also have the behind the scenes pipeline to collect sold items, make image embeddings, store search data, and run visual search fast. User uploads should be saved separately from the catalog data, and the catalog should be able to refresh on its own over time.

Make it feel polished and modern, with a simple search experience, loading states, and a clean results view. Use current best practices for the stack already in this repo, and look up any docs online if you need to. Also include tests for the important flows, and keep the code organized so it’s easy to maintain.