extracted Range record to its own file

AdventOfCode2025/GiftShop.cs

@@ -1,4 +1,5 @@
 using System.Text.RegularExpressions;
+using Range = AdventOfCode2025.Utils.Range;
 
 namespace AdventOfCode2025;
 
@@ -43,6 +44,4 @@ public class GiftShop : IAdventSolution
         var numbers = input.Split('-', StringSplitOptions.TrimEntries | StringSplitOptions.RemoveEmptyEntries);
         return new Range(ulong.Parse(numbers[0]), ulong.Parse(numbers[^1]));
     }
-}
+}
-
-public record struct Range(ulong Min, ulong Max);

AdventOfCode2025/Utils/Range.cs

@@ -0,0 +1,3 @@
+namespace AdventOfCode2025.Utils;
+
+public record struct Range(ulong Min, ulong Max);