CoderSwarup/shoptik ? reverse-engineered prompt

Build me a production style ecommerce app called Shoptik that has a customer side and an admin side.

On the customer side, people should be able to browse products, search and filter them, add items to a cart, save multiple addresses, check delivery availability by pincode, place orders, and get live order updates as notifications. On the admin side, I want a dashboard where I can manage products, stock, orders, delivery zones, refunds, and see a live stream of order activity.

Please make it feel real time and scalable, with separate services talking to each other in a clean way. Use a modern web UI for the frontend, a backend API layer, and a small separate service for live notifications and order events. If you need to look up current docs online while building it, go ahead. Make it work end to end with local development using Docker, and include sensible sample data so I can try the full flow right away.