Port 2V0 UI Python bindings and app module link surface

extension/src/port/UserInterface/StdAfx.h

@@ -8,6 +8,24 @@
 // (docs/PORT-PLAN.md 批次 2V0-2V3).
 
 #include "../ScriptLib/StdAfx.h"
+#include "../GameLib/StdAfx.h" // 40250 PCH order: GameLib types precede UserInterface/GameType.h.
+#include "../GameLib/RaceData.h"
+#include "../EterPythonLib/StdAfx.h"
+#include "GameType.h" // 40250's UserInterface precompiled header supplies these item types.
+#include "Locale.h"
+#include "../EterBase/tea.h"
+#include <dinput.h>
+
+// 40250's Windows PCH also includes DirectShow. The macOS UI adapter owns the video backend;
+// these opaque interfaces are only pointer members in PythonApplication.h.
+#ifndef _WIN32
+struct IBaseFilter;
+struct ISampleGrabber;
+struct IMediaControl;
+struct IMediaEventEx;
+struct IVideoWindow;
+struct IBasicVideo;
+#endif
 
 #define APP_NAME	"Metin 2"
 
@@ -25,3 +43,4 @@ enum
 // The Python module initializers RunMainScript calls, each defined in its own Python*Module.cpp.
 // Listed here as 40250 lists them; only the ported ones are defined.
 void initpack();
+void initapp();