chore: sync accumulated infra changes and docs

Removals: openwebui and netclaw compose + Traefik routes (both decommissioned).
Updates: litellm, n8n, vaultwarden, ai-agents, media, traefik routes, CLAUDE.md
(nodes/ports/known-issues), agent definitions.
Additions: Rongorongo tree, LinkedStorm plan, rename-bart spec, vllm brief,
tls-options and security-headers Traefik config.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

compose/hf-pdocker-01/litellm/docker-compose.yml

@@ -17,7 +17,7 @@ services:
       litellm-db:
         condition: service_healthy
     healthcheck:
-      test: ["CMD-SHELL", "curl -f http://localhost:4000/health || exit 1"]
+      test: ["CMD-SHELL", "python3 -c \"import urllib.request,sys; sys.exit(0 if urllib.request.urlopen('http://localhost:4000/health/liveliness',timeout=5).status==200 else 1)\""]
       interval: 30s
       timeout: 10s
       retries: 3