khadeem100/gato.exe ? reverse-engineered prompt

Build me a polished desktop app for GatoSports sales reps. I want it to feel modern and simple, with a dark black, white, and grey look, smooth transitions, and a clean sidebar for moving between screens.

The app should let reps sign in with their existing PrestaShop login, then see a live dashboard with sales activity, revenue, and recent orders. They should be able to browse and search their customers, open a customer to see order history and addresses, and view all orders with search, pagination, and order details. Please add a settings area with account info, connection status, app version, and a button to manually check for updates.

It also needs live syncing from the GatoSports server and built in update notifications so users get prompted when a new version is available, including automatic checks after startup and every so often in the background. Please make sure it can be packaged as a Windows installer, and keep Linux and Mac builds working too. If anything is unclear, look up the current docs online and wire it up end to end.