shivamchopra7/Macbook-Duo-App ? reverse-engineered prompt

Build me a native MacBook app that makes the desktop do a dramatic animation when I close the lid, then snaps everything back when I open it again. It should live in the menu bar, work only on MacBooks, and read the lid angle so the animation follows the motion in real time. I want a settings window where I can pick from a bunch of different effects, tweak how strong and smooth they feel, and switch between light, dark, or system appearance.

Please include an option to start at login, a way to pause it quickly with Esc or a keyboard shortcut, and a clean preview in the settings so I can see what the effect looks like. Use a polished Mac style, and make it feel native and fast. If you need to check anything current, look up the latest docs online.