ChitHub 0.1.2

Changelog

• b5a5eca Fix release build: macOS built with cgo; non-cgo fallback so it always compiles
• 35e8508 Rich native menu bar + fix branch-dropdown / review-header rendering
• 759e418 Native macOS app window (own Dock icon, no Chrome)
• 2bfb791 Harden app-lifecycle fix after adversarial review
• a28de52 Fix macOS .app lifecycle: no dock bounce, clean relaunch, no Force Quit
• cf584fd README: add a hero screenshot of the dashboard
• 655ccda Rewrite README as a professional desktop-app README