bhakareashutosh/raju-shop-agent ? reverse-engineered prompt

Build me a fun little web app called Raju’s Royal Artifacts, where an AI shopkeeper helps people buy items from a virtual bazaar and negotiates prices in a dramatic Indian English style. I want a simple chat page with a colorful bazaar look, product cards for a few items like a Brass Lamp, Silk Scarf, and Taj Mahal, and a chat area where the shopkeeper responds with personality, tells you when something is out of stock, and talks down or up the price based on what the user says.

Please make it work with a FastAPI backend and a Gemini powered agent that can check inventory in real time through a tool call. Keep the conversation stateful per user session, and include a basic setup script so I can run it easily on Windows or Linux. A clean test file for the agent logic would be great too. If you need to look up current docs online, feel free to do that.