Add routed build and deploy flow for gateway image

scripts/deploy-gateway.sh

@@ -3,6 +3,7 @@ set -euo pipefail
 
 DEPLOY_PATH="${DEPLOY_PATH:-/opt/vpn-proxy}"
 GATEWAY_IMAGE="${GATEWAY_IMAGE:?GATEWAY_IMAGE is required}"
+PULL_IMAGE="${PULL_IMAGE:-true}"
 
 echo "Preparing deploy directory: ${DEPLOY_PATH}"
 mkdir -p "${DEPLOY_PATH}"
@@ -57,7 +58,11 @@ fi
 cd "${DEPLOY_PATH}"
 
 echo "Pulling image: ${GATEWAY_IMAGE}"
-docker compose -f docker-compose.server.yml pull
+if [ "${PULL_IMAGE}" = "true" ]; then
+  docker compose -f docker-compose.server.yml pull
+else
+  echo "Skipping image pull; using local image ${GATEWAY_IMAGE}"
+fi
 
 echo "Starting gateway..."
 docker compose -f docker-compose.server.yml up -d