OpenGL: Use OpenGLCommandList instead of raw GL in minimal test

- Replace glViewport() with commandList.SetViewport()
- Replace glClearColor()+glClear() with commandList.Clear()
- Add OpenGLCommandList include and instance

tests/RHI/OpenGL/integration/minimal/main.cpp

@@ -8,6 +8,7 @@
 
 #include "XCEngine/RHI/OpenGL/OpenGLDevice.h"
 #include "XCEngine/RHI/OpenGL/OpenGLSwapChain.h"
+#include "XCEngine/RHI/OpenGL/OpenGLCommandList.h"
 #include "XCEngine/Debug/Logger.h"
 #include "XCEngine/Debug/ConsoleLogSink.h"
 #include "XCEngine/Containers/String.h"
@@ -135,6 +136,9 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
     OpenGLSwapChain swapChain;
     swapChain.Initialize(hwnd, gWidth, gHeight);
 
+    // Create command list for rendering commands
+    OpenGLCommandList commandList;
+
     // Main render loop
     MSG msg = {};
     int frameCount = 0;
@@ -148,10 +152,9 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
             TranslateMessage(&msg);
             DispatchMessageW(&msg);
         } else {
-            // Set viewport and clear color for each frame
+            // Set viewport and clear color using encapsulated command list
-            glViewport(0, 0, gWidth, gHeight);
+            commandList.SetViewport(0, 0, gWidth, gHeight);
-            glClearColor(1.0f, 0.0f, 0.0f, 1.0f);
+            commandList.Clear(1.0f, 0.0f, 0.0f, 1.0f, 1 | 2);
-            glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
             // Present the rendered frame
             swapChain.Present(0, 0);