I built a deal scanner for retired LEGO sets — scans eBay, BrickOwl & Amazon with AI filtering in 10 languages. Looking for honest feedback.

Hey everyone, I've been collecting and investing in LEGO for a few years and the deal-hunting process drove me crazy. I wanted a retired Barracuda Bay — set up eBay alerts and got flooded with knockoffs from China, parts lots, instruction-only listings, and random stuff with "Barracuda" in the title. Checking BrickOwl manually. Checking Amazon hoping for a random price drop. Missing listings because I was only searching one marketplace at a time. So I started building a tool to fix that. It's...