fix(dankserver): copyparty serves /w from the array; image is the ac edition

ghcr.io/9001/copyparty:latest does not exist — ghcr answers 403 on the token
request for nonexistent repos, which is why the bring-up failed at pull. The
upstream publishes ghcr.io/9001/copyparty-ac (ac = full edition) and serves
whatever is mounted at /w, so the compose mounts the LUKS array there; config
persists in /opt/copyparty/cfg per upstream layout.

dankserver/compose.yaml

@@ -74,7 +74,7 @@ services:
   # Copyparty — file sharing and streaming
   # ═══════════════════════════════════════════════
   copyparty:
-    image: ghcr.io/9001/copyparty:latest
+    image: ghcr.io/9001/copyparty-ac:latest
     container_name: copyparty
     restart: unless-stopped
     environment:
@@ -83,7 +83,8 @@ services:
     ports:
       - "3923:3923"
     volumes:
-      - /opt/copyparty/data:/data
+      - /mnt/entropy:/w
+      - /opt/copyparty/cfg:/cfg
     healthcheck:
       test: ["CMD", "python3", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:3923/')"]
       interval: 30s