Fix RenderDoc OpenGL capture - pass HGLRC instead of HDC

Critical fix: For OpenGL, RenderDoc requires HGLRC (OpenGL context) as
the device pointer, not HDC. Previously OpenGL test incorrectly passed
HDC which caused capture to silently fail (NumCaptures=0).

Changes:
- OpenGLDevice: Add wglCreateContextAttribsARB support for debug context
- OpenGLDevice: Create OpenGL 4.6 core profile with debug flag
- RenderDocCapture: Pass correct window to SetActiveWindow/StartFrameCapture
- OpenGL test: Pass HGLRC via SetDevice(), use BeginCapture/EndCapture

Fix root cause identified via RenderDoc docs analysis:
  'For OpenGL it must be the HGLRC, GLXContext, or EGLContext'

engine/src/Debug/RenderDocCapture.cpp

@@ -122,14 +122,19 @@ void RenderDocCapture::BeginCapture(const char* title) {
     if (title) {
         m_api->SetCaptureTitle(title);
     }
-    m_api->StartFrameCapture(m_device, nullptr);
+    
+    SetForegroundWindow((HWND)m_window);
+    SetFocus((HWND)m_window);
+    
+    m_api->SetActiveWindow(m_device, m_window);
+    m_api->StartFrameCapture(m_device, m_window);
 }
 
 void RenderDocCapture::EndCapture() {
     if (!m_isLoaded || !m_api) {
         return;
     }
-    m_api->EndFrameCapture(m_device, nullptr);
+    m_api->EndFrameCapture(m_device, m_window);
 }
 
 void RenderDocCapture::TriggerCapture() {

engine/src/RHI/OpenGL/OpenGLDevice.cpp

@@ -14,10 +14,26 @@
 #include "XCEngine/RHI/OpenGL/OpenGLCommandList.h"
 #include "XCEngine/RHI/OpenGL/OpenGLCommandQueue.h"
 #include "XCEngine/RHI/OpenGL/OpenGLSwapChain.h"
+#include "XCEngine/Debug/Logger.h"
 
 static bool s_windowClassRegistered = false;
 static const wchar_t kWindowClassName[] = L"XCEngine_OpenGL_WindowClass";
 
+typedef const char* (WINAPI* PFNWGLGETEXTENSIONSSTRINGARBPROC)(HDC hdc);
+typedef BOOL (WINAPI* PFNWGLCHOOSEPIXELFORMATARBPROC)(HDC hdc, const int* piAttribIList, const FLOAT* pfAttribFList, UINT nMaxFormats, int* piFormats, UINT* nNumFormats);
+typedef HGLRC (WINAPI* PFNWGLCREATECONTEXTATTRIBSARBPROC)(HDC hdc, HGLRC hShareContext, const int* attribList);
+
+static PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetExtensionsStringARB = nullptr;
+static PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormatARB = nullptr;
+static PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB = nullptr;
+
+#define WGL_CONTEXT_MAJOR_VERSION_ARB 0x2091
+#define WGL_CONTEXT_MINOR_VERSION_ARB 0x2092
+#define WGL_CONTEXT_FLAGS_ARB 0x2094
+#define WGL_CONTEXT_DEBUG_BIT_ARB 0x0001
+#define WGL_CONTEXT_PROFILE_MASK_ARB 0x9126
+#define WGL_CONTEXT_CORE_PROFILE_BIT_ARB 0x0001
+
 namespace XCEngine {
 namespace RHI {
 
@@ -135,13 +151,60 @@ bool OpenGLDevice::InitializeWithExistingWindow(HWND hwnd) {
         return false;
     }
 
-    m_hglrc = wglCreateContext(m_hdc);
-    if (!m_hglrc) {
+    HGLRC tempRC = wglCreateContext(m_hdc);
+    if (!tempRC) {
         ReleaseDC(m_hwnd, m_hdc);
         m_hdc = nullptr;
         return false;
     }
 
+    if (!wglMakeCurrent(m_hdc, tempRC)) {
+        wglDeleteContext(tempRC);
+        ReleaseDC(m_hwnd, m_hdc);
+        m_hdc = nullptr;
+        return false;
+    }
+
+    wglGetExtensionsStringARB = (PFNWGLGETEXTENSIONSSTRINGARBPROC)wglGetProcAddress("wglGetExtensionsStringARB");
+    if (wglGetExtensionsStringARB) {
+        const char* extensions = wglGetExtensionsStringARB(m_hdc);
+        if (extensions && strstr(extensions, "WGL_ARB_pixel_format")) {
+            wglChoosePixelFormatARB = (PFNWGLCHOOSEPIXELFORMATARBPROC)wglGetProcAddress("wglChoosePixelFormatARB");
+        }
+        if (extensions && strstr(extensions, "WGL_ARB_create_context")) {
+            wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProcAddress("wglCreateContextAttribsARB");
+        }
+    }
+
+    wglMakeCurrent(nullptr, nullptr);
+    wglDeleteContext(tempRC);
+
+    if (wglCreateContextAttribsARB) {
+        int debugAttribs[] = {
+            WGL_CONTEXT_MAJOR_VERSION_ARB, 4,
+            WGL_CONTEXT_MINOR_VERSION_ARB, 6,
+            WGL_CONTEXT_FLAGS_ARB, WGL_CONTEXT_DEBUG_BIT_ARB,
+            WGL_CONTEXT_PROFILE_MASK_ARB, WGL_CONTEXT_CORE_PROFILE_BIT_ARB,
+            0, 0
+        };
+
+        m_hglrc = wglCreateContextAttribsARB(m_hdc, nullptr, debugAttribs);
+        if (m_hglrc) {
+            XCEngine::Debug::Logger::Get().Info(XCEngine::Debug::LogCategory::General, "Created OpenGL debug context with WGL_ARB_create_context");
+        }
+    }
+
+    if (!m_hglrc) {
+        m_hglrc = wglCreateContext(m_hdc);
+        if (m_hglrc) {
+            XCEngine::Debug::Logger::Get().Warning(XCEngine::Debug::LogCategory::General, "Created OpenGL context without debug bit (wglCreateContextAttribsARB failed)");
+        } else {
+            ReleaseDC(m_hwnd, m_hdc);
+            m_hdc = nullptr;
+            return false;
+        }
+    }
+
     if (!wglMakeCurrent(m_hdc, m_hglrc)) {
         wglDeleteContext(m_hglrc);
         ReleaseDC(m_hwnd, m_hdc);
@@ -159,6 +222,14 @@ bool OpenGLDevice::InitializeWithExistingWindow(HWND hwnd) {
         return false;
     }
 
+    GLint contextFlags = 0;
+    glGetIntegerv(GL_CONTEXT_FLAGS, &contextFlags);
+    if (contextFlags & GL_CONTEXT_FLAG_DEBUG_BIT) {
+        XCEngine::Debug::Logger::Get().Info(XCEngine::Debug::LogCategory::General, "OpenGL debug context is active");
+    } else {
+        XCEngine::Debug::Logger::Get().Warning(XCEngine::Debug::LogCategory::General, "OpenGL debug context is NOT active");
+    }
+
     const char* vendor = reinterpret_cast<const char*>(glGetString(GL_VENDOR));
     const char* renderer = reinterpret_cast<const char*>(glGetString(GL_RENDERER));
     const char* version = reinterpret_cast<const char*>(glGetString(GL_VERSION));