sypnosis2019/auto-fulfillment-location-routing ? reverse-engineered prompt

Build me a Shopify app starter that merchants can install and use inside Shopify admin.

I want it to be an embedded app with a clean dashboard, Shopify login and authentication, a sample screen that fetches and shows product data, and basic webhook handling for app uninstalls. Please include the usual Shopify setup for storing sessions, a simple database setup, and examples of using metafields or custom data so I can extend it later.

Make it easy to run locally with the Shopify CLI, and keep it ready for deployment without extra manual cleanup. If you need to check current Shopify docs for the latest setup steps, go ahead and do that. The end result should feel like a solid starter template for building a real Shopify app, not a toy demo.