Twenty cases later, the time tracker has a body

The time tracker finally lives in a case that fits. The first prints tried to be one perfect piece — misaligned buttons, a display that never sat right. Switching to a modular design broke the streak; buttons, OLED, and buzzer each get their own tolerances now.

ESP32 inside, syncing to the tracking system in the cloud. It looks a little Star Trek, which was the point.