- Add support for system-level systemd (/etc/systemd/system/) when running as root - Add requireInstalled check before start/stop/restart operations - Improve systemd detection and error messages for WSL2, containers, SSH - Add isWSL2() helper for better platform detection - Update daemon help text to clarify Linux root vs non-root behavior Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>