refactor(new_editor/app): reorganize host structure and add smoke test

new_editor/app/Bootstrap/ApplicationRunLoop.cpp

@@ -0,0 +1,67 @@
+#include "Bootstrap/Application.h"
+
+#include "Platform/Win32/EditorWindow.h"
+#include "Platform/Win32/EditorWindowManager.h"
+
+#include <XCEditor/Foundation/UIEditorRuntimeTrace.h>
+
+namespace XCEngine::UI::Editor {
+
+void Application::TickSmokeTest() {
+    if (!m_smokeTestEnabled || m_smokeTestCloseRequested || m_windowManager == nullptr) {
+        return;
+    }
+
+    ++m_smokeTestRenderedFrames;
+    if (m_smokeTestRenderedFrames < m_smokeTestFrameLimit) {
+        return;
+    }
+
+    if (App::EditorWindow* primaryWindow = m_windowManager->FindPrimaryWindow();
+        primaryWindow != nullptr &&
+        primaryWindow->GetHwnd() != nullptr) {
+        PostMessageW(primaryWindow->GetHwnd(), WM_CLOSE, 0, 0);
+        m_smokeTestCloseRequested = true;
+        AppendUIEditorRuntimeTrace("smoke", "frame budget reached, requested WM_CLOSE");
+    }
+}
+
+int Application::Run(HINSTANCE hInstance, int nCmdShow) {
+    if (!Initialize(hInstance, nCmdShow)) {
+        Shutdown();
+        return 1;
+    }
+
+    MSG message = {};
+    while (true) {
+        while (PeekMessageW(&message, nullptr, 0U, 0U, PM_REMOVE)) {
+            if (message.message == WM_QUIT) {
+                Shutdown();
+                return static_cast<int>(message.wParam);
+            }
+
+            TranslateMessage(&message);
+            DispatchMessageW(&message);
+        }
+
+        if (m_windowManager != nullptr) {
+            m_windowManager->DestroyClosedWindows();
+            m_windowManager->ProcessPendingGlobalTabDragStarts();
+            m_windowManager->ProcessPendingDetachRequests();
+            m_windowManager->DestroyClosedWindows();
+            if (!m_windowManager->HasWindows()) {
+                break;
+            }
+
+            m_windowManager->RenderAllWindows();
+            TickSmokeTest();
+        } else {
+            break;
+        }
+    }
+
+    Shutdown();
+    return 0;
+}
+
+} // namespace XCEngine::UI::Editor