ryanbr/noop ? reverse-engineered prompt

Build me an offline companion app for a WHOOP strap that lets me pair my strap over Bluetooth and see my health data without signing into any account or sending anything to the cloud. I want it to work on iPhone, Android, and Mac, with a clean modern look, and it should keep everything stored locally on the device.

The app should show the usual things people care about, like recovery, strain, HRV, sleep, and trends over time. It should also be able to import existing WHOOP and Apple Health history so I can see my old data in one place. If possible, add optional support for Oura Ring data too, but keep that experimental and clearly separate.

Make it feel polished and simple to use, with a dashboard, details for each metric, and a settings screen for pairing and imports. If you need current API or platform details, look them up online first.