- Move update orchestration from repository scope to actions/update
- Introduce UpdateManager and SystemUpdater with distro detection
- Add Arch, Debian/Ubuntu, and Fedora/RHEL system update handling
- Rename CLI flag from --system-update to --system
- Route update as a top-level command in CLI dispatch
- Remove legacy update_repos implementation
- Add E2E tests for:
- update all without system updates
- update single repo (pkgmgr) with system updates
https://chatgpt.com/share/693e76ec-5ee4-800f-9623-3983f56d5430