Refactor code structure for improved readability and maintainability; optimize performance in key functions.

src/Concelier/__Libraries/StellaOps.Concelier.Merge/Comparers/VersionComparisonResult.cs

@@ -0,0 +1,10 @@
+namespace StellaOps.Concelier.Merge.Comparers;
+
+using System.Collections.Immutable;
+
+/// <summary>
+/// Result of a version comparison with explainability proof lines.
+/// </summary>
+public sealed record VersionComparisonResult(
+    int Comparison,
+    ImmutableArray<string> ProofLines);