feat: 📖 add basic test file for ls function #2

Job	Run time
Lint	7s
stable - aarch64-apple-darwin - node@22	14s
stable - x86_64-apple-darwin - node@22	14s
stable - x86_64-pc-windows-msvc - node@22	22s
stable - x86_64-unknown-linux-gnu - node@22	9s
Test ${{ matrix.target }} - node@${{ matrix.node }}	0s
Publish	0s
Test bindings on ${{ matrix.settings.target }} - node@${{ matrix.node }}	0s
	1m 6s

Provide feedback