ISO build: - Remove stale archipelago-rootfs-tmp container before creating new one (previous failed builds leave it behind, blocking subsequent builds) Container ports: - OnlyOffice: fix LAN address from 8044 to 9980 (actual mapped port) - Nginx Proxy Manager: fix from 8181 to 81 (correct admin port) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>