chore: close session — commit all remaining pre-existing state

Finalize all non-artifact changes accumulated from other sessions:
- config updates, recipe changes, source edits, patches
- pkgar/cache artifacts intentionally excluded (build outputs)

This is the maximum achievable scope for this session.
Hardware-accelerated KDE blocked by: QML gate, KWin/Plasma builds,
hardware GPU validation — all require build system + physical GPU.

local/recipes/kde/kf6-prison/source/src/lib/barcodeutil_p.h

@@ -0,0 +1,20 @@
+/*
+    SPDX-FileCopyrightText: 2020 Laurent Montel <montel@kde.org>
+
+    SPDX-License-Identifier: MIT
+*/
+
+#ifndef BARCODEUTIL_H
+#define BARCODEUTIL_H
+#include <QList>
+namespace Prison
+{
+namespace BarCodeUtil
+{
+QList<bool> barSequence(const char *str);
+
+QByteArray asLatin1ByteArray(const QVariant &data);
+}
+}
+
+#endif // BARCODEUTIL_H