add Comprehensive FCrashHandler to dump callstack on every critical exception + gitignore

Entry/DllMain.cpp

@@ -25,6 +25,7 @@
 
 #include "../Core/Common.h"
 #include "../Core/Logging/Log.h"
+#include "../Core/Diagnostics/CrashHandler.h"
 #include "../Engine/EngineCore.h"
 #include "../STW/GameMode/STWGameMode.h"
 #include "../STW/Missions/MissionManager.h"
@@ -208,6 +209,7 @@ namespace USS
 
     DWORD WINAPI InitializationThread(LPVOID lpParam)
     {
+        // Initialize logging first
         EResult Result = Log::Initialize(true, "USS_Log.txt");
         if (Result != EResult::Success)
         {
@@ -215,6 +217,12 @@ namespace USS
             return 1;
         }
 
+        Result = FCrashHandler::Initialize();
+        if (Result != EResult::Success)
+        {
+            USS_WARN("Failed to initialize crash handler - crashes may not be logged");
+        }
+
         USS_LOG("========================================");
         USS_LOG("  UniversalSlashingSimulator v0.1.0");
         USS_LOG("  STW Gameserver Framework");
@@ -305,6 +313,8 @@ namespace USS
 
         GetEngineCore().Shutdown();
 
+        FCrashHandler::Shutdown();
+
         Log::Shutdown();
 
         g_bInitialized = false;