MENT0Z/IMS — reverse-engineered prompt

Build me a complete Android inventory management app for a small shop that works fully offline, without needing any server or internet connection.

I want a clean daily use app where the owner can see a dashboard, manage stock items, add customers and suppliers, create sales bills, enter purchase bills, and automatically update stock after every sale or purchase. It should calculate totals, tax, paid amount, balance, and keep customer and supplier transaction history.

Please include sales history and purchase history with simple filters, low stock tracking, and the ability to reprint or share old invoices. Bills should look professional and include the business profile details. Add backup and restore using Excel files, plus export reports when possible. The app should support PDF sharing and printing for bills.

Use Kotlin for Android, local database storage, a clean simple Material style UI, and light and dark mode. Make it stable enough for real shop use. Look up current Android docs online if you need to.