Add tests for CLI argument parsing and GPU command generation to increase coverage and ensure future changes don't break functionality. New Features - Add unit test `verify_cli` to ensure Clap command is built correctly. - Add unit tests for `xorg_intel`, `xorg_amd`, and `generate_xrandr_script` functions. - Validate that generated Xrandr scripts contain expected provider settings. Enhancements - none Bug Fixes - none