zackseal89/whatsapp-sales-agent — reverse-engineered prompt

Build me a WhatsApp AI sales agent for a small store. Customers should be able to message the business on WhatsApp, ask about products, and place an order through a natural chat. The agent should collect the customer details, items, quantities, and any notes, but it should not ask for or process payment. Once the order is confirmed, save it as pending payment and tell the customer the store owner will contact them.

I also want a simple web dashboard where the store owner can manage the product catalog, see customers, view conversation history, track orders, update order status, and get live notifications when a new order comes in.

Use the existing stack for this project, with a Python FastAPI backend, OpenRouter for the AI conversation, Twilio WhatsApp webhooks, Supabase for the database and realtime updates, and a Next.js dashboard. Please set up the needed environment examples and make it easy to run locally. Look up current docs online if needed.