cleanup: namespace Montauk (capital M) => montauk::abi

programs/libs/libhello/src/libhello.cpp

@@ -40,7 +40,7 @@ extern "C" int hello_run() {
     static constexpr int kInitialWidth = 320;
     static constexpr int kInitialHeight = 200;
     static constexpr uint32_t kBackgroundColor = 0xFFFFFFFF;
-    Montauk::WinCreateResult wres;
+    montauk::abi::WinCreateResult wres;
     if (montauk::win_create("libhello Demo", kInitialWidth, kInitialHeight, &wres) < 0 || wres.id < 0) {
         return -1;
     }
@@ -82,7 +82,7 @@ extern "C" int hello_run() {
 
     // Event loop
     while (true) {
-        Montauk::WinEvent ev;
+        montauk::abi::WinEvent ev;
         int r = montauk::win_poll(winId, &ev);
 
         if (r < 0) {