Compare key policies across all servers in memory/servers/ to surface silent drift. Makes no configuration changes; writes one audit-trail line to each host's journal. Probes unattended-upgrades, sshd effective config, firewall posture, MTA, time sync, and auto-reboot behaviour. Use when the user asks to "fleet audit", "vergleiche alle server", "policy drift check", "are my servers configured the same?", or after a fix on one host to find which others carry the same bug.
