feat: add keyboard layout support

programs/src/login/main.cpp

@@ -96,6 +96,10 @@ extern "C" void _start() {
         while (montauk::is_key_available()) {
             montauk::abi::KeyEvent key;
             montauk::getkey(&key);
+            // Deliberately untranslated: the login screen is US-English only
+            // until it grows its own layout switcher. There is no user yet, so
+            // there is no per-user layout to apply, and silently picking one
+            // would leave no way to type a password in a different layout.
             handle_key(ls, key);
             key_changed = true;
         }