- Introduced a `systemctl_user` function in `agent.sh` to handle systemd user commands with session bus configuration in headless environments.
- Updated existing systemctl commands to utilize the new wrapper, enhancing compatibility and user experience on Linux systems.
- Added warnings for missing user bus to guide users in enabling lingering sessions.
- Introduced a new `agent.sh` script to manage background agent functionality for YAZE on macOS and Linux.
- Implemented subcommands for installation, uninstallation, one-shot execution, and a watch mode using inotify.
- Added support for environment variable configuration and platform-specific installation procedures.
- Enhanced user experience with detailed usage instructions and logging for build and test processes.
