minisforum, debian, mac-mini, and gpu-node all moved from
192.168.7.0/24 to 10.10.40.0/24. Updates K3s server/agent config and
node IPs (including gpu-node's host_vars override), NFS export
allow-list and exports template, Pi-hole DNS records and
kube-vip/loadBalancerIP pins, WireGuard's pushed DNS/AllowedIPs, and
the NFS server IP baked into Jellyfin/Kavita/gitea-backup PVs and the
Ollama URL used by ai-gateway/Dashy.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
