The Traefik Yaegi CrowdSec bouncer plugin was dead on Traefik 3.7.5 (handler
never invoked) and has been removed. Document the replacement: in-kernel
nftables drop via cs-firewall-bouncer on direct hosts, and a Cloudflare IP-List
+ zone WAF block rule (fed by a LAPI->CF-list sync CronJob) on proxied hosts.
Both add zero per-request latency and fail open.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>