mivuuu/senvo — reverse-engineered prompt

I want a simple Android messenger style app built from this Kotlin project. The repo is pretty bare, so please make reasonable choices and turn it into something that runs cleanly and feels complete.

The app should open to a conversation list, let me tap into a chat, show sent and received messages in a nice mobile layout, and let me type and send a new message locally. If the included schema files are useful, use them for the data shape and seed some sample conversations. If not, keep it simple with mock data that is easy to swap later.

Please make the UI polished enough to demo, with basic empty and loading states, sensible app naming, and code that is organized and easy to continue building on. Also fix whatever is needed so it builds from the command line, not just in an IDE, and add a short note on how to run it. If you need to, look up current Android docs online and use the modern approach that fits this project.