Web-phpshell/alfa-shell — reverse-engineered prompt

I want a very lightweight PHP web admin tool in one file that I can drop onto a server I own and use from the browser. Keep it simple and polished, more like a compact control panel than a developer project.

It should let me look around the server, view basic system and PHP info, browse folders, upload and download files, rename or delete things, and open common text files for quick edits. I also want a clean dashboard style layout so it feels easy to use, not just a raw utility page.

Please add a basic login screen and sensible safety checks so it is clearly meant for authorized use on my own machine or test server. Since the repo only really shows the name and a screenshot, use that as the visual inspiration and fill in the missing details in a practical way. If you need to, look up current PHP docs online.