Add audiobookshelf setup

Configure audiobookshelf for audiobook library management with:
- Library path: /mnt/media/audiobooks/library
- Untagged imports: /mnt/media/audiobooks/untagged
- Reverse proxy integration via npm-network
- Accessible at audiobookshelf.kolpacksoftware.com

audiobookshelf/docker-compose.yaml

@@ -0,0 +1,24 @@
+networks:
+  default:
+    external:
+      name: npm-network
+
+services:
+  audiobookshelf:
+    image: ghcr.io/advplyr/audiobookshelf:latest
+    container_name: audiobookshelf
+    environment:
+      - PUID=1000
+      - PGID=1000
+      - TZ=America/New_York
+      - VIRTUAL_HOST=audiobookshelf.kolpacksoftware.com
+      - VIRTUAL_PORT=80
+      - LETSENCRYPT_HOST=audiobookshelf.kolpacksoftware.com
+    volumes:
+      - /srv/audiobookshelf/config:/config
+      - /srv/audiobookshelf/metadata:/metadata
+      - /mnt/media/audiobooks/library:/audiobooks
+      - /mnt/media/audiobooks/untagged:/untagged
+    ports:
+      - 13378:80
+    restart: unless-stopped