Refactor and enhance various channel indicators for improved performance and stability

- Updated Codacy instructions to streamline usage guidelines.
- Refactored Bbands class to utilize ArrayPool for memory management, preventing stack overflow on large series.
- Changed Fcb class to use long for monotonic deques to avoid truncation issues.
- Enhanced Kchannel class to ensure safe defaults for non-finite values.
- Improved Maenv class to prevent double-priming during calculations.
- Modified Mmchannel class to ensure non-negative buffer indices and removed unnecessary state tracking.
- Updated Pchannel class to correctly reference IsHot state.
- Refined Regchannel class to avoid double-processing during calculations.
- Enhanced Starchannel class to sanitize non-finite values during calculations.
- Adjusted Stbands.Quantower.cs to allow finer control over multiplier precision.
- Updated Ubands class to only update last valid values on new bars.
- Modified Uchannel.Quantower.cs to allow for finer multiplier precision.
- Enhanced Vwapbands classes to include standard deviation calculations and ensure consistent array lengths.
- Refactored Vwapsd classes to include standard deviation outputs and ensure consistent array lengths.
- Updated MonotonicDeque to use long for indices to prevent overflow.
- Improved Mdape class to handle zero actual values with a substitute value for error calculation.
- Enhanced Rae class to ensure correct state management during updates.
- Refined Wmape class to simplify the logic for finding last valid actual and predicted values.
- Updated Cmf.Quantower classes to ensure MinHistoryDepths reflects the current period.

lib/channels/ubands/Ubands.cs

@@ -124,11 +124,15 @@ public sealed class Ubands : AbstractBase
     }
 
     [MethodImpl(MethodImplOptions.AggressiveInlining | MethodImplOptions.AggressiveOptimization)]
-    private double GetFiniteValue(double value)
+    private double GetFiniteValue(double value, bool isNew)
     {
         if (double.IsFinite(value))
         {
-            _state.LastValidValue = value;
+            // Only update LastValidValue on new bars to avoid corrupting restored state during corrections
+            if (isNew)
+            {
+                _state = _state with { LastValidValue = value };
+            }
             return value;
         }
         return double.IsFinite(_state.LastValidValue) ? _state.LastValidValue : 0;
@@ -149,7 +153,7 @@ public sealed class Ubands : AbstractBase
             _state = _p_state;
         }
 
-        double val = GetFiniteValue(input.Value);
+        double val = GetFiniteValue(input.Value, isNew);
 
         // Initialize on first value
         if (!_state.IsInitialized)