lbjlaq/Antigravity-Manager ? reverse-engineered prompt

I want to build a tool to manage all my different AI accounts for models like Gemini and Claude. It's a hassle to keep track of quotas and juggle multiple accounts, so I'm thinking of a desktop app that acts as a central hub and a local proxy server.

The main idea is that I can add all my accounts, probably using OAuth or by pasting in session info, and the app will provide a single, unified API endpoint that's compatible with the standard OpenAI format. That way, all my other AI clients and scripts can just point to my local machine.

The app needs a clean dashboard to monitor the quota and health of every account. Crucially, if a request gets rate-limited or fails, it should automatically and silently switch to a different, healthy account. I also want a smart model routing feature to map requests (like "gpt-4") to specific backend models based on rules I can set.

For the stack, let's use Rust for the backend for performance, with a modern React UI, and package it all into a cross-platform app with Tauri. Please also include a Docker setup for headless server deployment.