test: setup common stability and robustness properties tracking

lib/volatility/cv/Cv.Quantower.Tests.cs

@@ -305,4 +305,4 @@ public class CvIndicatorTests
         double max = values.Max();
         Assert.True(max > min, "CV should vary with changing volatility patterns");
     }
-}
+}

lib/volatility/cv/Cv.Tests.cs

@@ -456,4 +456,4 @@ public class CvTests
         Assert.True(sma.IsHot);
         Assert.True(double.IsFinite(sma.Last.Value));
     }
-}
+}

lib/volatility/cv/Cv.Validation.Tests.cs

@@ -451,4 +451,4 @@ public class CvValidationTests
         Assert.True(cv.Last.Value >= 0, "Volatility cannot be negative");
         Assert.True(cv.Last.Value < 500, "Volatility should be reasonable (< 500% annualized)");
     }
-}
+}