dcloudio/uni-app ? reverse-engineered prompt

Build me a cross platform app framework demo based on Vue that lets me write one set of pages and run them on iPhone, Android, web, and a few popular mini program platforms.

I want a simple starter project with a clean home screen, a couple of example pages, and a basic navigation flow so I can see how to build real apps with it. Please make it feel like a practical getting started template, not a toy. If there are platform differences, handle them in a sensible way and keep the main code easy to understand.

Use the docs and examples in the repo to wire it up the right way, and if you need current info about the platform APIs or build steps, look them up online. Also include a small test or sample check so I can tell the project is working.