First release.
- Menu bar toggle for enabling/disabling the remap, Launch at Login, and a one-click Uninstall
- Remaps mouse back/forward buttons (HID 3/4) to ⌘[ / ⌘] system-wide, so they work in Finder
- Auto-registers for Accessibility permission on first launch (no manual "+" needed)
Install: open SideNav-1.0.0.dmg, drag SideNav into Applications, then right-click → Open the first time (it's not notarized). See the README for details.