Adopt persistent Portainer volume explicitly

compose.yaml

@@ -816,3 +816,4 @@ volumes:
   router-images:
   portainer-data:
     name: portainer_data
+    external: true

install.sh

@@ -490,6 +490,7 @@ build_and_start() {
   docker compose --env-file "$SECRETS_DIR/stack.env" --profile inference create \
     llama-fast llama-medium llama-large llama-ultra llama-uncensored
   docker compose --env-file "$SECRETS_DIR/stack.env" --profile image create image-worker
+  docker volume inspect portainer_data >/dev/null 2>&1 || docker volume create portainer_data >/dev/null
   docker compose --env-file "$SECRETS_DIR/stack.env" stop llama-dashboard portainer
   docker compose --env-file "$SECRETS_DIR/stack.env" up -d --build \
     wireguard-gateway xtts piper tts-gateway profile-controller router llama-dashboard portainer backup

manage.sh

@@ -44,6 +44,9 @@ case "$command" in
   deploy)
     [[ $# -gt 0 ]] || { usage >&2; exit 2; }
     run python3 "$ROOT_DIR/platform/scripts/sync-profile-matrix.py" --check
+    if ! docker volume inspect portainer_data >/dev/null 2>&1; then
+      run docker volume create portainer_data
+    fi
     if [[ $1 == core ]]; then
       shift
       [[ $# -eq 0 ]] || { echo "core akzeptiert keine weiteren Services" >&2; exit 2; }