test: setup common stability and robustness properties tracking

lib/volatility/ui/Ui.Quantower.Tests.cs

@@ -335,4 +335,4 @@ public class UiIndicatorTests
         // After 15 bars of rising prices past the old high, UI should be near zero or much lower
         Assert.True(afterRecovery < duringDrawdown, "Recovery from drawdown should reduce UI value");
     }
-}
+}

lib/volatility/ui/Ui.Tests.cs

@@ -611,4 +611,4 @@ public class UiTests
     }
 
     #endregion
-}
+}

lib/volatility/ui/Ui.Validation.Tests.cs

@@ -696,4 +696,4 @@ public class UiValidationTests
         int finiteCount = values.Count(v => double.IsFinite(v));
         Assert.True(finiteCount > 100, $"Expected >100 finite Ooples UI values, got {finiteCount}");
     }
-}
+}