DNS is now your own party server. tooling/dns-records.sh prints the records
(online = service names; airgap = + Mojang/launcher/NeoForge spoofs) in several
formats. build-stack --up online|airgap selects the mirror layer and prints the
matching records. dnsmasq moved to an optional override (docker-compose.dnsmasq.yml).
Default domain switched to .lan (.local is hijacked by mDNS on unicast DNS).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
