BilalAhmad7723/FactoryProject ? reverse-engineered prompt

Build me a simple backend for a factory management app called Factory BK.

I want it to be a clean JavaScript server with a proper structure for routes, controllers, models, services, helpers, and config so it’s easy to grow later. Please set it up so I can run the app from app.js and have the usual API flow working end to end. Keep it organized and readable, with a basic build setup if needed.

The main goal is to have a solid starting point for managing factory related data through an API, with sensible error handling, validation, and code that is easy to extend. If anything important is missing from the current project, fill it in in the simplest practical way, and if you need to check current docs for anything, go ahead and look them up.