Capstone - A Production RAG Chatbot at Scale

This capstone ships the store's assistant for real: five million users, B2B partners embedding it, money on the meter: and it runs a second exam underneath the first. The module intro claimed that nothing in the AI stack is architecturally new. So at every stage, alongside the usual prompt, we'll keep a tally: which old module is doing the work. If the claim holds, the finished design should be mostly a reunion.