Add quarantined Xorg destination-key ownership and cleanup

tests/native_remote_keys.py

@@ -0,0 +1,28 @@
+#!/usr/bin/env python3
+# Copyright (c) 2026 Storm Dragon
+# Authors: Storm Dragon, Angus Kola
+# SPDX-License-Identifier: GPL-3.0-or-later
+"""Exercise quarantined destination-key ownership on a private Xvfb server."""
+import os
+from pathlib import Path
+import shutil
+import sys
+
+from native_test_session import run_private_session
+
+
+def main():
+    for program in ("xvfb-run", "dbus-run-session", "setxkbmap", "go"):
+        if shutil.which(program) is None:
+            raise RuntimeError(f"Required private-test dependency is missing: {program}")
+    environment = dict(os.environ, CTHULHU_NATIVE_REMOTE_KEYS="1",
+                       GOCACHE="/tmp/cthulhu-cache", GOPROXY="off")
+    command = ["xvfb-run", "-a", "-s", "-screen 0 1024x768x24", "dbus-run-session", "--",
+               "go", "test", "-race", "./internal/platform/xorg", "-count=1", "-timeout=60s",
+               "-run", "^TestNativeRemoteKeyTarget", "-v"]
+    return run_private_session(command, env=environment,
+                               cwd=Path(__file__).resolve().parents[1], check=True).returncode
+
+
+if __name__ == "__main__":
+    sys.exit(main())