test: setup common stability and robustness properties tracking

lib/volatility/bbw/Bbw.Quantower.Tests.cs

@@ -212,4 +212,4 @@ public class BbwIndicatorTests
         Assert.Contains("github.com", indicator.SourceCodeLink, StringComparison.Ordinal);
         Assert.Contains("Bbw.Quantower.cs", indicator.SourceCodeLink, StringComparison.Ordinal);
     }
-}
+}

lib/volatility/bbw/Bbw.Tests.cs

@@ -426,4 +426,4 @@ public class BbwTests
         double expectedBbw = (2.0 * 2.0 * 5.0) / 105.0;
         Assert.Equal(expectedBbw, bbw.Last.Value, 1e-10);
     }
-}
+}

lib/volatility/bbw/Bbw.Validation.Tests.cs

@@ -267,4 +267,4 @@ public sealed class BbwValidationTests : IDisposable
         Assert.True(finiteCount > 100, $"Expected >100 finite BBW pairs, got {finiteCount}");
         _output.WriteLine($"BBW Ooples structural: {finiteCount} finite pairs verified.");
     }
-}
+}