0.16.1 chart defaults frr.enabled=false but frrk8s.enabled=true, which
deploys a heavy frr-k8s daemonset. With no BGP peers (pure L2/ARP), FRR is
unnecessary and its images caused DiskPressure on the Pi nodes, evicting a
speaker and stalling the rollout. Disable both frr and frrk8s for a single
-container L2 speaker.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>