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/bart/media/docker-compose.yml

@@ -114,7 +114,7 @@ services:
       - /mnt/docker-data/configs/nzbhydra:/config
     ports:
       - "5076:5076"
-    mem_limit: 512M
+    mem_limit: 768M
     healthcheck:
       test: ["CMD-SHELL", "curl -f http://localhost:5076/ || exit 1"]
       interval: 30s