Changes: - Add tailscale_control_plane_ips list to k3s-server defaults - Include all 3 control plane Tailscale IPs (100.120.55.97, 100.108.90.123, 100.92.149.85) - Update primary k3s install to add Tailscale IPs to TLS certificates - Enables kubectl access via Tailscale without certificate errors After next deploy, cluster will be accessible via: - kubectl --server=https://100.120.55.97:6443 (or any CP tailscale IP) - kubectl --server=https://k8s-cluster-cp-1:6443 (via tailscale DNS)