sync current state

gnome-user-switcher-extension/tests/smoke.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+
+cd "$ROOT_DIR"
+
+for required in metadata.json extension.js; do
+	if [[ ! -f "$required" ]]; then
+		echo "missing required file: $required" >&2
+		exit 1
+	fi
+done
+
+if ! command -v gnome-extensions >/dev/null 2>&1; then
+	echo "gnome-extensions CLI not found; skipped shell validation"
+	exit 0
+fi
+
+gnome-extensions pack --force --out-dir /tmp . >/dev/null
+
+if rg -n "communicate_utf8\\(null, null\\)" extension.js >/dev/null; then
+	echo "found blocking subprocess call in extension.js" >&2
+	exit 1
+fi
+
+echo "smoke test passed"