Move Traefik off shared MetalLB IP 10.0.20.200 to a dedicated 10.0.20.203
with externalTrafficPolicy=Local, to (1) restore real client IPs for CrowdSec
on the 24 non-proxied apps (currently SNAT'd to a node IP) and (2) enable QUIC.
Forced off the shared IP because MetalLB forbids mixed ETP on a shared IP
(10.0.20.200 also carries the Terraform state DB). In-place cutover selected.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
