Add MVP server travel flow

Source/AgrarianGame/AgrarianGamePlayerController.cpp

@@ -22,6 +22,20 @@
 namespace
 {
 	const FVector GroundZeroDeveloperTravelHomeLocation(-22000.0f, -3500.0f, 1148.0f);
+	const TCHAR* GroundZeroServerTravelMapPath = TEXT("/Game/Agrarian/Maps/L_GroundZeroTerrain_Test");
+
+	bool ResolveAgrarianServerTravelMap(const FName MapName, FString& OutTravelMap)
+	{
+		if (MapName == NAME_None
+			|| MapName == TEXT("GroundZero")
+			|| MapName == TEXT("L_GroundZeroTerrain_Test"))
+		{
+			OutTravelMap = GroundZeroServerTravelMapPath;
+			return true;
+		}
+
+		return false;
+	}
 
 	bool ApplyAgrarianItemUseEffect(const FName ItemId, const int32 Quantity, UAgrarianSurvivalComponent* SurvivalComponent, FString& OutEffectSummary)
 	{
@@ -260,6 +274,11 @@ void AAgrarianGamePlayerController::AgrarianTravelHome()
 	ServerAgrarianTravel(GroundZeroDeveloperTravelHomeLocation);
 }
 
+void AAgrarianGamePlayerController::AgrarianServerTravel(FName MapName)
+{
+	ServerAgrarianServerTravel(MapName);
+}
+
 void AAgrarianGamePlayerController::ServerAgrarianGrantItem_Implementation(FName ItemId, int32 Quantity)
 {
 	AAgrarianGameCharacter* AgrarianCharacter = GetPawn<AAgrarianGameCharacter>();
@@ -521,3 +540,24 @@ void AAgrarianGamePlayerController::ServerAgrarianTravel_Implementation(FVector
 		ClientMessage(TEXT("Developer travel failed: invalid destination."));
 	}
 }
+
+void AAgrarianGamePlayerController::ServerAgrarianServerTravel_Implementation(FName MapName)
+{
+	UWorld* World = GetWorld();
+	if (!World || !HasAuthority())
+	{
+		ClientMessage(TEXT("Agrarian server travel failed: no authoritative world."));
+		return;
+	}
+
+	FString TravelMap;
+	if (!ResolveAgrarianServerTravelMap(MapName, TravelMap))
+	{
+		ClientMessage(TEXT("Usage: AgrarianServerTravel GroundZero"));
+		return;
+	}
+
+	const FString TravelURL = FString::Printf(TEXT("%s?listen"), *TravelMap);
+	ClientMessage(FString::Printf(TEXT("Agrarian server travel requested: %s"), *TravelURL));
+	World->ServerTravel(TravelURL, false, false);
+}