Fix 3 issues: MTA freeze on quit, CEF crash on quit (non-user facing), and 'Quit' closing the game being slow to clear the last frame due to redundant blocking operation.

Author: Dutchman101

Client/core/CCore.cpp

@@ -121,6 +121,7 @@ CCore::CCore()
 
     m_bIsOfflineMod = false;
     m_bQuitOnPulse = false;
+    m_bIsQuitting = false;
     m_bDestroyMessageBox = false;
     m_bCursorToggleControls = false;
     m_bLastFocused = true;
@@ -1203,7 +1204,12 @@ CWebCoreInterface* CCore::GetWebCore()
 void CCore::DestroyWeb()
 {
     WriteDebugEvent("CCore::DestroyWeb");
-    SAFE_DELETE(m_pWebCore);
+    // Skip CEF cleanup during quit sequence - TerminateProcess will handle it
+    // Doing CefShutdown() here will cause a freeze, and cleanup is unnecessary when terminating
+    if (!m_bIsQuitting)
+    {
+        SAFE_DELETE(m_pWebCore);
+    }
     m_WebCoreModule.UnloadModule();
 }
 
@@ -1496,6 +1502,7 @@ void CCore::Quit(bool bInstantly)
 {
     if (bInstantly)
     {
+        m_bIsQuitting = true;            // Skip CEF cleanup to prevent CefShutdown freeze
         AddReportLog(7101, "Core - Quit");
         // Show that we are quiting (for the crash dump filename)
         SetApplicationSettingInt("last-server-ip", 1);

Client/core/CCore.h

@@ -366,6 +366,7 @@ class CCore : public CCoreInterface, public CSingleton<CCore>
     SString m_strModInstallRoot;
 
     bool m_bQuitOnPulse;
+    bool m_bIsQuitting;
     bool m_bDestroyMessageBox;
 
     bool                 m_requestNewNickname{false};