fix(install): implement atomic update to prevent binary corruption

- Use temporary files (*.new) during installation process
- Perform atomic 'mv -f' operation to replace binaries
- Prevent partial updates if process is interrupted/fails
- Fixes critical issue where failed update deleted existing app

bin/uninstall.sh

@@ -67,6 +67,8 @@ scan_applications() {
     local -a app_dirs=(
         "/Applications"
         "$HOME/Applications"
+        "/Library/Input Methods"
+        "$HOME/Library/Input Methods"
     )
     local vol_app_dir
     local nullglob_was_set=0