fix(oci): prepare managed volumes across stack installs

oci/catalog/overlays/unpackerr.json

@@ -4,6 +4,20 @@
       "completion_notes": [
         "Unpackerr has no web interface and extracts nothing until it is pointed at a Starr application. Uncomment the [sonarr.0] or [radarr.0] section in /config/unpackerr.conf inside the container, set its url and api_key, then restart the container.",
         "The same connection can be given as container variables instead of the file: UN_SONARR_0_URL and UN_SONARR_0_API_KEY, or the UN_RADARR_0_ equivalents."
+      ],
+      "volume_preparations": [
+        {
+          "container_path": "/config",
+          "remove_lost_found": true,
+          "owner_strategy": "mapped-root",
+          "only_when_mount_type": "managed-volume"
+        },
+        {
+          "container_path": "/data",
+          "remove_lost_found": true,
+          "owner_strategy": "mapped-root",
+          "only_when_mount_type": "managed-volume"
+        }
       ]
     }
   }