Add CPU/GPU gate and support new ANSALPR using OCR

modules/ANSCV/dllmain.cpp

@@ -1,5 +1,7 @@
 // dllmain.cpp : Defines the entry point for the DLL application.
 #include "pch.h"
+#include "ANSCVVendorGate.h"  // anscv_vendor_gate::IsNvidiaGpuAvailable()
+#include "ANSLicense.h"        // ANSCENTER::EngineType, CheckHardwareInformation
 #include <mutex>
 #include <unordered_map>
 #include <iostream>
@@ -61,6 +63,15 @@ BOOL APIENTRY DllMain( HMODULE hModule,
         // Pinning keeps the code pages mapped; the OS kills all threads when
         // the process exits, so this is safe and is Microsoft's recommended
         // pattern for DLLs that own threads.
+        //
+        // CRITICAL: do NOT call CheckHardwareInformation() or
+        // anscv_vendor_gate::IsNvidiaGpuAvailable() here.  DllMain holds the
+        // OS loader lock (LdrpLoaderLock).  CheckHardwareInformation touches
+        // hwinfo → DXGI / WMI / COM which internally call LoadLibrary; doing
+        // that while holding the loader lock causes a classic loader-lock
+        // deadlock (confirmed by stress-test hang).  The vendor gate will
+        // lazy-initialise on the first real call from worker code, which
+        // runs with the loader lock released.
         {
             HMODULE hSelf = nullptr;
             GetModuleHandleExW(