Add sanitized compose files for 21 rocky-docker stacks missing from the mirror

audiobookshelf, bazarr, beets, dashy, dockhand, docker-socket-proxy,
emby, ghost (+umami), jellyfin, kodi-mariadb, kopia, lidarr,
music-assistant, prowlarr, qbittorrent, radarr, seerr, sonarr, tdarr,
tinymediamanager, trilium — these run in the fleet today but had no
public entry at all. Same sanitization convention as the rest of the
repo (paths -> /path/to/..., secrets left as bare ${VAR} refs, no CA
trust details).

Docker/Audiobookshelf/docker-compose.yaml

@@ -0,0 +1,27 @@
+services:
+  audiobookshelf:
+    image: ghcr.io/advplyr/audiobookshelf:latest
+    container_name: audiobookshelf
+    user: "${PUID}:${PGID}"
+    environment:
+      - TZ=${TZ}
+    ports:
+      - ${HTTP_PORT}:80
+    volumes:
+      - /path/to/audiobookshelf/config:/config
+      - /path/to/audiobookshelf/metadata:/metadata
+      - /path/to/data/media/audiobooks:/audiobooks
+      - /path/to/data/media/podcasts:/podcasts
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD-SHELL", "wget -qO- http://localhost:80/ || exit 1"]
+      interval: 15s
+      timeout: 5s
+      retries: 5
+      start_period: 20s
+    networks:
+      - audiobookshelf-net
+
+networks:
+  audiobookshelf-net:
+    external: true