ishandutta2007/open-antigravity — reverse-engineered prompt

Build me a working MVP of an open source AI coding workspace like Google Antigravity, but private and model flexible.

I want a local web app where I can connect my own API keys for different AI models, pick which model to use, open a project, chat with an agent, and ask it to change files or run commands. The app should have a VS Code style editor view for working directly with code, plus a manager view where I can start an agent task, watch its plan, see progress, approve changes, and review artifacts like task lists, command output, screenshots, and test results.

Please make it self hosted and easy to run with Docker Compose. Keep the first version simple but real, with a clean interface, project workspace handling, agent status, file editing, and a basic provider gateway for at least a couple of popular LLM APIs. Look up current docs online if needed.