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-kwidgetsaddons/source/src/kpagewidget_p.h

@@ -0,0 +1,29 @@
+/*
+    This file is part of the KDE project
+    SPDX-FileCopyrightText: 2007 Matthias Kretz <kretz@kde.org>
+
+    SPDX-License-Identifier: LGPL-2.0-only
+*/
+
+#ifndef KPAGEWIDGET_P_H
+#define KPAGEWIDGET_P_H
+
+#include "kpageview_p.h"
+#include "kpagewidget.h"
+
+class KPageWidgetModel;
+class KPageWidgetPrivate : public KPageViewPrivate
+{
+    Q_DECLARE_PUBLIC(KPageWidget)
+protected:
+    KPageWidgetPrivate(KPageWidget *qq);
+
+    KPageWidgetModel *model() const
+    {
+        return static_cast<KPageWidgetModel *>(KPageViewPrivate::model);
+    }
+
+    void slotCurrentPageChanged(const QModelIndex &, const QModelIndex &);
+};
+
+#endif // KPAGEWIDGET_P_H