ArKT-7/nabu ? reverse-engineered prompt

Build me a simple browser based fastboot flashing tool that works on any modern device and in any new browser.

I want a clean page where I can connect a phone or device, detect it, and then choose common fastboot actions like booting a recovery image, flashing an image to a partition, and doing wipe or format actions. It should feel easy enough for someone non technical to use, with clear buttons, obvious status messages, and helpful warnings before anything destructive happens.

If possible, make it support loading an image file from the computer, then let me pick what partition to flash it to. I also want a basic log area so I can see what is happening and know if the command worked or failed. Keep the design simple and mobile friendly. If you need to check current browser support or fastboot docs online, do that.