test: Add RHI integration tests and update unit tests

- Add CommandQueue unit tests for WaitForIdle and synchronization
- Add SwapChain unit tests for Present and buffer operations
- Add Texture unit tests for various texture types and mipmaps
- Fix RHIIntegrationFixture with proper logging and debug output
- Update minimal integration test with RHI abstraction layer
- Add GT reference image for minimal test
- Update TEST_SPEC.md documentation

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

@@ -281,7 +281,6 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
     commandList.SetUniformMat4("gModelMatrix", modelMatrix);
     commandList.SetUniformMat4("gViewMatrix", viewMatrix);
     commandList.SetUniformMat4("gProjectionMatrix", projectionMatrix);
-    commandList.SetUniformInt("uTexture", 0);
 
     OpenGLTexture texture;
     if (!texture.LoadFromFile("Res/Image/earth.png", true)) {
@@ -332,6 +331,7 @@ int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine
             indexBuffer.Bind();
             vertexArray.Bind();
 
+            commandList.SetUniformInt("uTexture", 0);
             texture.Bind(0);
             sampler.Bind(0);