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/homarr/docker-compose.yml

@@ -0,0 +1,17 @@
+# Homarr — startdashboard (poort 4755).
+# Configs: configs/homarr/ → /app/data/configs
+
+services:
+  homarr:
+    image: ghcr.io/ajnart/homarr:latest
+    container_name: homarr
+    restart: always
+    ports:
+      - "${HOMARR_PORT:-4755}:7575"
+    environment:
+      TZ: ${TZ:-Europe/Brussels}
+    volumes:
+      - ${HOMARR_CONFIG_DIR:-/volume1/docker/homarr}:/app/data/configs
+      - ${HOMARR_ICONS_DIR:-/volume1/docker/homarr/icons}:/app/public/icons
+      - ${HOMARR_DATA_DIR:-/volume1/docker/homarr/data}:/data
+      - /var/run/docker.sock:/var/run/docker.sock