port: CMapOutdoor + PythonBackground + minimap (1:1 40250)

GameLib map/area/terrain units, PRTerrainLib Terrain/TextureSet,
PythonBackground(+Module) and ColorTransitionHelper ported verbatim;
pending stand-ins and background module stubs removed. Hand edits:
BeginEnvironment's pointer tag via uintptr_t, LoadWaterMap reads the
file's 32-bit longs. Terrain draw passes stay platform no-ops (Godot
draws the terrain). RecordingDevice gains textures, buffers and render
targets; orthographic draws become UI commands so CPythonMiniMap's
masked tiles show through minimap_image_filter in python_ui_surface.

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

extension/src/platform/EterBase/TempFile.cpp

@@ -0,0 +1,23 @@
+// Platform implementation of EterBase/TempFile.h (40250 EterBase/TempFile.cpp): the 40250 code as is; the file
+// name comes from the platform CreateTempFileName and DeleteFile is the common/Win32Crt.h shim.
+#include "EterBase/StdAfx.h"
+#include "EterBase/TempFile.h"
+#include "EterBase/Utils.h"
+#include "EterBase/Debug.h"
+
+CTempFile::~CTempFile()
+{
+	Destroy();
+	DeleteFile(m_szFileName);
+}
+
+CTempFile::CTempFile(const char * c_pszPrefix)
+{
+	strncpy(m_szFileName, CreateTempFileName(c_pszPrefix), MAX_PATH);
+
+	if (!Create(m_szFileName, CFileBase::FILEMODE_WRITE))
+	{
+		TraceError("CTempFile::CTempFile cannot create temporary file. (filename: %s)", m_szFileName);
+		return;
+	}
+}