wix/react-native-navigation ? reverse-engineered prompt

Build me a React Native navigation library that gives apps fully native screen transitions and tab style navigation on both iOS and Android, but still feels easy to use from JavaScript.

I want the main API to be simple and cross platform, so a React Native app can register screens, open and close them, switch between tabs, and manage stacks without the app feeling like a web view. It should work with native iOS and Android setup, since this is not just a pure JS package. Please include a small example app or playground so I can see it working right away, plus the tests and docs needed to understand how to install it and use it in a real app.

If anything is unclear, look up the current docs online and match the expected behavior of the library as closely as you can.