nopSolutions/nopCommerce ? reverse-engineered prompt

Build me a full featured online store app that works on .NET 9 and can run on Windows, Linux, or inside Docker. I want a customer facing shop with product browsing, search, cart, checkout, customer accounts, and order history, plus an admin area where I can manage products, categories, orders, customers, and store settings.

Please make it easy to customize later, so the code is clean and modular, and keep the main actions async. Support SQL Server by default, and if it’s not too much extra, make sure it can also work with PostgreSQL and MySQL through Docker. I’d like the app to be secure and production ready, with things like multi factor login support and basic web farm friendliness.

Set it up so I can run it locally with a simple command, and if you need to check current docs or best practices, look them up online as you go.