Refactor Day12 to simplify LINQ usage in `GetMinTotalPresentArea` by replacing `.Select()` with `.Zip()`

AoC_2025/Day12.cs

@@ -33,7 +33,7 @@ public class Day12 : IPuzzleSolver<long>
     private int GetMinTotalPresentArea(int[] presentCounts, int[] presentSizes)
     {
         return presentCounts
-            .Select((presentCount, index) => presentCount * presentSizes[index])
+            .Zip(presentSizes, (count, size) => count * size)
             .Sum();
     }