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-02/n8n/docker-compose.yml

@@ -6,24 +6,13 @@ services:
     ports:
       - "5678:5678"
     environment:
-      - DB_TYPE=postgresdb
-      - DB_POSTGRESDB_HOST=n8n-db
-      - DB_POSTGRESDB_PORT=5432
-      - DB_POSTGRESDB_DATABASE=n8n
-      - DB_POSTGRESDB_USER=n8n
-      - DB_POSTGRESDB_PASSWORD=${N8N_DB_PASSWORD}
-      - N8N_PORT=5678
       - GENERIC_TIMEZONE=America/Chicago
-      - N8N_ENCRYPTION_KEY=${N8N_ENCRYPTION_KEY}
+      - N8N_SECURE_COOKIE=false
+      - NODE_OPTIONS=--max-old-space-size=1500
     volumes:
-      - /mnt/docker-data/configs/n8n:/home/node/.n8n
-    depends_on:
-      n8n-db:
-        condition: service_healthy
-    networks:
-      - n8n-internal
-    mem_limit: 512M
-    memswap_limit: 512M
+      - n8n_data:/home/node/.n8n
+    mem_limit: 2g
+    memswap_limit: 2g
     healthcheck:
       test: ["CMD-SHELL", "wget -q --spider http://localhost:5678/healthz || exit 1"]
       interval: 30s
@@ -36,35 +25,6 @@ services:
         max-size: "50m"
         max-file: "3"
 
-  n8n-db:
-    image: postgres:15-alpine
-    container_name: n8n-db
-    restart: unless-stopped
-    user: "1024:100"
-    environment:
-      - POSTGRES_DB=n8n
-      - POSTGRES_USER=n8n
-      - POSTGRES_PASSWORD=${N8N_DB_PASSWORD}
-    volumes:
-      - /mnt/docker-data/databases/n8n-db:/var/lib/postgresql/data
-    networks:
-      - n8n-internal
-    labels:
-      - "com.centurylinklabs.watchtower.enable=false"
-    mem_limit: 256M
-    memswap_limit: 256M
-    healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U n8n -d n8n"]
-      interval: 30s
-      timeout: 10s
-      retries: 3
-      start_period: 30s
-    logging:
-      driver: "json-file"
-      options:
-        max-size: "50m"
-        max-file: "3"
-
-networks:
-  n8n-internal:
-    driver: bridge
+volumes:
+  n8n_data:
+    external: true