refactor: promote new architecture to repository root

Archive the deprecated implementation under lume-legacy, make the new kernel the default root-level build, and update repository entry points without changing kernel behavior.

1 files changed, 12 insertions, 0 deletions

diff --git a/lume-legacy/src/ulib/iostream.cpp b/lume-legacy/src/ulib/iostream.cpp
new file mode 100644
index 0000000..4d721c1
--- /dev/null
+++ b/lume-legacy/src/ulib/iostream.cpp
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2026 Richard QIn
+ */
+#include "ulib/iostream"
+
+namespace std
+{
+    istream cin(stdin);
+    ostream cout(stdout);
+    ostream cerr(stderr);
+} // namespace std