port 4-a: text input through CPythonIME (login typed, in-game chat)

- UserInterface/PythonIME(+Module) ported verbatim; ime module stubs removed, initime() after initdbg()
- EterLib/IME.cpp in platform/: 40250 buffer/WMChar bodies, IMM/TSF processors no-op; committed
  multi-byte text via PythonBoot::UIChar emulating GCS_RESULTSTR
- GameApplicationAdapter RunIME* -> CWindowManager; Godot keys -> ui_ime_key/ui_char
- port.login_flow/login_live type the account through the IME; chat CG_CHAT round-trip on the fake server
- python_game_render_test logs in with Godot key events

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

extension/src/platform/UserInterface/PythonApplication.cpp

@@ -68,7 +68,7 @@ void CPythonApplication::SetFrameSkip(bool) { MT_PLATFORM_STUB(); }
 // fonts and the IME here. The Godot window and its canvas already exist when the host starts the
 // script, so the window size is the canvas size (PythonBoot::SetUISize) rather than the width/height
 // passed from metin2.cfg, and the graphic device is the recording device (RecordingDevice.h) at that
-// size. Cursors, sound, keyboard, fonts and the IME are not created here yet.
+// size. Cursors, sound, keyboard and fonts are not created here yet.
 bool CPythonApplication::Create(PyObject*, const char*, int, int, int)
 {
 	unsigned width = 0, height = 0;
@@ -125,7 +125,11 @@ bool CPythonApplication::Create(PyObject*, const char*, int, int, int)
 	// 40250 m_pyItem.Create() (PythonApplication.cpp:1253): registers dropitem.mse with CEffectManager.
 	CPythonItem::Instance().Create();
 
-	// 40250 PythonApplication.cpp:1260, after DefaultFont_Startup and the IME.
+	// 40250 PythonApplication.cpp:1258-1259 (after DefaultFont_Startup).
+	CPythonIME::Instance().Create(GetWindowHandle());
+	CPythonIME::Instance().SetText("", 0);
+
+	// 40250 PythonApplication.cpp:1260.
 	CPythonTextTail::Instance().Initialize();
 	return true;
 }