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/tests/kwalletd/kwalletsync.cpp

@@ -0,0 +1,33 @@
+#include "kwalletsync.h"
+
+#include <QTest>
+#include <QTextStream>
+
+#include <KAboutData>
+#include <QDBusConnection>
+#include <QDBusConnectionInterface>
+#include <kwallet.h>
+
+static QTextStream _out(stdout, QIODevice::WriteOnly);
+
+void KWalletSyncTest::init()
+{
+    if (!qEnvironmentVariableIsSet("DISPLAY")) {
+        QSKIP("$DISPLAY is not set. These tests cannot be done without a graphical system.");
+    }
+}
+
+void KWalletSyncTest::openWallet()
+{
+    _out << "About to ask for wallet sync\n";
+
+    KWallet::Wallet *w = KWallet::Wallet::openWallet(KWallet::Wallet::NetworkWallet(), 0, KWallet::Wallet::Synchronous);
+    QVERIFY(w != nullptr);
+
+    _out << "Got sync wallet: " << (w != nullptr) << '\n';
+    _out.flush();
+}
+
+QTEST_GUILESS_MAIN(KWalletSyncTest)
+
+#include "moc_kwalletsync.cpp"