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-kitemmodels/source/tests/proxymodeltestapp/reparentingpmwidget.cpp

@@ -0,0 +1,42 @@
+/*
+    This file is part of the proxy model test suite.
+
+    SPDX-FileCopyrightText: 2009 Stephen Kelly <steveire@gmail.com>
+
+    SPDX-License-Identifier: LGPL-2.1-or-later
+*/
+
+#include "reparentingpmwidget.h"
+
+#include <QSplitter>
+#include <QTreeView>
+#include <QVBoxLayout>
+
+#include "dynamictreemodel.h"
+#include "dynamictreewidget.h"
+#include "scriptablereparentingwidget.h"
+
+ReparentingProxyModelWidget::ReparentingProxyModelWidget(QWidget *parent)
+    : QWidget(parent)
+{
+    QVBoxLayout *layout = new QVBoxLayout(this);
+
+    QSplitter *vSplitter = new QSplitter(this);
+    layout->addWidget(vSplitter);
+
+    m_rootModel = new DynamicTreeModel(this);
+
+    DynamicTreeWidget *dynamicTreeWidget = new DynamicTreeWidget(m_rootModel, vSplitter);
+    dynamicTreeWidget->setInitialTree(
+        QLatin1String("- 1"
+                      "- 2"
+                      "- - 3"
+                      "- - - 4"
+                      "- 5"
+                      "- 6"
+                      "- 7"));
+
+    new ScriptableReparentingWidget(m_rootModel, vSplitter);
+}
+
+#include "moc_reparentingpmwidget.cpp"