Advance Wayland and KDE package bring-up

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

local/recipes/kde/kf6-kdbusaddons/source/tests/syncdbusenvtest.cpp

@@ -0,0 +1,21 @@
+/*
+    SPDX-FileCopyrightText: 2019 David Edmundson <davidedmundson@kde.org>
+
+    SPDX-License-Identifier: LGPL-2.0-or-later
+*/
+
+#include <QCoreApplication>
+#include <kupdatelaunchenvironmentjob.h>
+
+// This test syncs the current environment of the spawned process to systemd/whatever
+// akin to dbus-update-activation-environment
+// it can then be compared with "systemd-run --user -P env" or watched with dbus-monitor
+
+int main(int argc, char **argv)
+{
+    QCoreApplication app(argc, argv);
+    QEventLoop e;
+    auto job = new KUpdateLaunchEnvironmentJob(QProcessEnvironment::systemEnvironment());
+    QObject::connect(job, &KUpdateLaunchEnvironmentJob::finished, &e, &QEventLoop::quit);
+    return e.exec();
+}