2V2-e.1: 3D draw-command channel — recording D3D8 device, StateManager, GrpBase, camera

EterLib/StateManager.cpp and GrpBase.cpp ported verbatim. CGraphicDevice::Create builds a platform
IDirect3DDevice8 that keeps the device state and records every Draw* call as a Render3DDraw
(vertices decoded by FVF, strips/fans expanded, textures, world/view/proj, blend/depth/light state).
The 40250 camera (__UpdateCamera, SetCenterPosition, ...) and the Process order
(__UpdateCamera -> OnCameraUpdate -> OnUIUpdate -> Begin/SetInterfaceRenderState/OnUIRender/End)
are in place; CScreen Begin/End, CPythonGraphic render states and CCullingManager::Process matrix
updates are verbatim. port.login_flow asserts a textured, lit character draw under the RH
perspective with every vertex on screen; offline and live pass.

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

extension/src/platform/EterLib/GrpTexture.cpp

@@ -31,7 +31,7 @@ auto CGraphicTexture::GetD3DTexture() const -> LPDIRECT3DTEXTURE8
 	return m_lpd3dTexture;
 }
 
-// PORT: safe_release(m_lpd3dTexture); the only textures this platform creates are memory textures.
+// PORT: safe_release(m_lpd3dTexture); the platform textures are memory textures and file-texture handles.
 auto CGraphicTexture::DestroyDeviceObjects() -> void
 {
 	if (m_lpd3dTexture)