manas-shukla-101/GestureOS ? reverse-engineered prompt

Build me a Windows desktop app that lets me control my PC with hand gestures from a webcam, all running locally with no cloud stuff. I want a clean dark dashboard with a live camera preview, hand tracking overlay, and an easy settings area where I can adjust tracking sensitivity, smoothing, mirror the camera, and save everything locally.

The app should move the mouse with a pointing finger, do left and right clicks with simple pinch gestures, scroll with two and three finger gestures, switch windows, show the desktop, and open a few common apps like browser, calculator, notepad, file explorer, and screenshot tool. It should also have media play pause and a clear emergency stop so it immediately stops controlling the computer if I need it to. Please make it feel fast and stable, with low lag, no accidental triggers, and helpful visual feedback when gestures are recognized. If you need to look up current docs online for PySide6, MediaPipe, OpenCV, or Windows APIs, go ahead.