// Deploy ke baad sach me chal raha hai ya nahi - live endpoint se check.
def call(String target) {
    withEnv(["TARGET=${target}"]) {
        sh '''
            HOSTIP=$(awk -v t="[$TARGET]" '
                $0 == t {f=1; next}
                /^\\[/ {f=0}
                f && /ansible_host=/ {sub(/.*ansible_host=/,""); print $1; exit}
            ' "$INVENTORY")
            [ -n "$HOSTIP" ] || { echo "$TARGET ka host inventory me nahi mila"; exit 1; }
            GOT=$(curl -sf --max-time 15 "http://$HOSTIP:$APP_PORT$HEALTH_PATH" \
                  | python3 -c "import sys,json;print(json.load(sys.stdin)['version'])")
            echo "  $TARGET ($HOSTIP) expected=$IMAGE_TAG live=$GOT"
            [ "$GOT" = "$IMAGE_TAG" ] || { echo "  $TARGET MISMATCH"; exit 1; }
            echo "  $TARGET VERIFIED"
        '''
    }
}