VeRRdict/panel ? reverse-engineered prompt

Build me the public facing repo for NX Panel, the control plane for a proxy management platform.

I want a polished README and docs site that explain how to install it with the one line install script, how to run it with Docker, and how the setup wizard works after first install. Please include clear guidance for SQLite and PostgreSQL, updating, backups, restoring to a new server, and the main admin, operator, and reseller roles. It should also explain that the panel is the single source of truth, that nodes connect over mutual TLS, and that the panel can be updated or reinstalled without losing the database or settings.

Make it feel like real product documentation for server admins, with practical examples, setup steps, and warning notes where needed, especially about the same server node setup not being recommended. If any current command details or Docker behavior have changed, look up the latest docs online and match those.