Establish UE 5.8 known-good baseline with Batch 1 archaeology docs.

Initialize Git with LFS for binary assets and add standard Unreal Engine .gitignore/.gitattributes.

Co-authored-by: Cursor <cursoragent@cursor.com>

Plugins/AdvancedSteamSessions/Source/AdvancedSteamSessions/Private/AdvancedSteamWorkshopLibrary.cpp

@@ -0,0 +1,69 @@
+// Fill out your copyright notice in the Description page of Project Settings.
+#include "AdvancedSteamWorkshopLibrary.h"
+#include "OnlineSubSystemHeader.h"
+//General Log
+DEFINE_LOG_CATEGORY(AdvancedSteamWorkshopLog);
+
+
+void UAdvancedSteamWorkshopLibrary::GetNumSubscribedWorkshopItems(int32 & NumberOfItems)
+{
+	NumberOfItems = 0;
+#if (PLATFORM_WINDOWS || PLATFORM_MAC || PLATFORM_LINUX) && STEAM_SDK_INSTALLED
+
+	if (SteamAPI_Init())
+	{
+		NumberOfItems = SteamUGC()->GetNumSubscribedItems();
+		return;
+	}
+	else
+	{
+		UE_LOGF(AdvancedSteamWorkshopLog, Warning, "Error in GetNumSubscribedWorkshopItemCount : SteamAPI is not Inited!");
+		return;
+	}
+#else
+	UE_LOGF(AdvancedSteamWorkshopLog, Warning, "Error in GetNumSubscribedWorkshopItemCount : Called on an incompatible platform");
+	return;
+#endif
+}
+
+TArray<FBPSteamWorkshopID> UAdvancedSteamWorkshopLibrary::GetSubscribedWorkshopItems(int32 & NumberOfItems)
+{
+	TArray<FBPSteamWorkshopID> outArray;
+	NumberOfItems = 0;
+
+#if (PLATFORM_WINDOWS || PLATFORM_MAC || PLATFORM_LINUX) && STEAM_SDK_INSTALLED
+
+	if (SteamAPI_Init())
+	{
+		uint32 NumItems = SteamUGC()->GetNumSubscribedItems();
+		
+		if (NumItems == 0)
+			return outArray;
+
+		// Not using the actual variable above in case someone somehow goes past int32 limits
+		// Don't want to go negative on the iteration.
+		NumberOfItems = NumItems;
+
+		PublishedFileId_t *fileIds = new PublishedFileId_t[NumItems];
+		
+		uint32 subItems = SteamUGC()->GetSubscribedItems(fileIds, NumItems);
+
+		for (uint32 i = 0; i < subItems; ++i)
+		{
+			outArray.Add(FBPSteamWorkshopID(fileIds[i]));
+		}
+
+		delete[] fileIds;
+
+		return outArray;
+	}
+	else
+	{
+		UE_LOGF(AdvancedSteamWorkshopLog, Warning, "Error in GetSubscribedWorkshopItemCount : SteamAPI is not Inited!");
+		return outArray;
+	}
+#else
+	UE_LOGF(AdvancedSteamWorkshopLog, Warning, "Error in GetSubscribedWorkshopItemCount : Called on an incompatible platform");
+	return outArray;
+#endif
+}