milestone: 22 KF6 enabled, blake3 placeholders removed, text-login fixed

- kf6-knewstuff/kwallet: removed all-zero blake3 placeholders
- CONSOLE-TO-KDE-DESKTOP-PLAN.md: 20→22 KF6 enabled count
- BOOT-PROCESS-IMPROVEMENT-PLAN.md: text-login→graphical greeter path
- D-Bus session/kwin compositor/sessiond enhancements from Wave tasks
- Only kirigami remains suppressed (QML-dependent, environmental gate)

Zero warnings. 24 commits total.

local/recipes/kde/kf6-kwallet/source/examples/asynchronous_app/main.cpp

@@ -0,0 +1,21 @@
+/*
+    This file is part of the KDE project
+
+    SPDX-FileCopyrightText: 2010-2012 Martin Sandsmark <martin.sandsmark@kde.org>
+    SPDX-FileCopyrightText: 2018 Olivier Churlaud <olivier@churlaud.com>
+
+    SPDX-License-Identifier: LGPL-3.0-or-later
+*/
+
+#include "dialog.h"
+
+#include <QApplication>
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+
+    Dialog dialog;
+    dialog.show();
+    return app.exec();
+}