Add full NAS service catalog for disaster recovery.

Compose files and configs for postgres, adguard, duckdns, homarr, neo4j,
portainer, remotely, and monitoring; RESTORE.md and sync-from-nas script.
Sanitize pgAdmin secrets; document homelab-command as separate repo.

Co-authored-by: Cursor <cursoragent@cursor.com>

docker/neo4j/docker-compose.yml

@@ -0,0 +1,16 @@
+# Neo4j — graph database (bolt 49153, browser 49154/49155).
+# Data: /volume1/docker/neo4j
+
+services:
+  neo4j:
+    image: neo4j:latest
+    container_name: neo4j
+    restart: unless-stopped
+    ports:
+      - "${NEO4J_BOLT_PORT:-49153}:7687"
+      - "${NEO4J_HTTP_PORT:-49154}:7474"
+      - "${NEO4J_HTTPS_PORT:-49155}:7473"
+    environment:
+      NEO4J_AUTH: ${NEO4J_AUTH:-neo4j/changeme}
+    volumes:
+      - ${NEO4J_DATA_DIR:-/volume1/docker/neo4j}:/data