Add StochasticCross indicator support in GeneticService and related classes

- Introduced StochasticCross indicator type in GeneticService with configuration settings for stochPeriods, signalPeriods, smoothPeriods, kFactor, and dFactor.
- Updated IIndicator interface and IndicatorBase class to include KFactor and DFactor properties.
- Enhanced LightIndicator class to support new properties and ensure proper conversion back to full Indicator.
- Modified ScenarioHelpers to handle StochasticCross indicator creation and validation, ensuring default values and error handling for kFactor and dFactor.

src/Managing.Application/GeneticService.cs

@@ -84,6 +84,14 @@ public class GeneticService : IGeneticService
             ["signalPeriods"] = 9.0,
             ["smoothPeriods"] = 3.0
         },
+        [IndicatorType.StochasticCross] = new()
+        {
+            ["stochPeriods"] = 14.0,
+            ["signalPeriods"] = 3.0,
+            ["smoothPeriods"] = 3.0,
+            ["kFactor"] = 3.0,
+            ["dFactor"] = 2.0
+        },
         [IndicatorType.Stc] = new()
         {
             ["cyclePeriods"] = 10.0,
@@ -159,6 +167,14 @@ public class GeneticService : IGeneticService
                 ["signalPeriods"] = (3.0, 15.0),
                 ["smoothPeriods"] = (1.0, 10.0)
             },
+            [IndicatorType.StochasticCross] = new()
+            {
+                ["stochPeriods"] = (5.0, 30.0),
+                ["signalPeriods"] = (3.0, 15.0),
+                ["smoothPeriods"] = (1.0, 10.0),
+                ["kFactor"] = (0.1, 10.0),
+                ["dFactor"] = (0.1, 10.0)
+            },
             [IndicatorType.Stc] = new()
             {
                 ["cyclePeriods"] = (5.0, 50.0),
@@ -188,6 +204,7 @@ public class GeneticService : IGeneticService
         [IndicatorType.SuperTrendCrossEma] = ["period", "multiplier"],
         [IndicatorType.ChandelierExit] = ["period", "multiplier"],
         [IndicatorType.StochRsiTrend] = ["period", "stochPeriods", "signalPeriods", "smoothPeriods"],
+        [IndicatorType.StochasticCross] = ["stochPeriods", "signalPeriods", "smoothPeriods", "kFactor", "dFactor"],
         [IndicatorType.Stc] = ["cyclePeriods", "fastPeriods", "slowPeriods"],
         [IndicatorType.LaggingStc] = ["cyclePeriods", "fastPeriods", "slowPeriods"]
     };