style patterns

lib/errors/pseudohuber/PseudoHuber.cs

@@ -41,7 +41,9 @@ public sealed class PseudoHuber : BiInputIndicatorBase
         : base(period, $"PseudoHuber({period},{delta:F3})")
     {
         if (delta <= 0)
+        {
             throw new ArgumentException("Delta must be positive", nameof(delta));
+        }
 
         Delta = delta;
         _deltaSquared = delta * delta;
@@ -65,7 +67,9 @@ public sealed class PseudoHuber : BiInputIndicatorBase
     public static TSeries Calculate(TSeries actual, TSeries predicted, int period, double delta = 1.0)
     {
         if (actual.Count != predicted.Count)
+        {
             throw new ArgumentException("Actual and predicted series must have the same length", nameof(predicted));
+        }
 
         int len = actual.Count;
         var t = new List<long>(len);
@@ -89,14 +93,25 @@ public sealed class PseudoHuber : BiInputIndicatorBase
     public static void Batch(ReadOnlySpan<double> actual, ReadOnlySpan<double> predicted, Span<double> output, int period, double delta = 1.0)
     {
         if (actual.Length != predicted.Length || actual.Length != output.Length)
+        {
             throw new ArgumentException("All spans must have the same length", nameof(output));
+        }
+
         if (period <= 0)
+        {
             throw new ArgumentException("Period must be greater than 0", nameof(period));
+        }
+
         if (delta <= 0)
+        {
             throw new ArgumentException("Delta must be positive", nameof(delta));
+        }
 
         int len = actual.Length;
-        if (len == 0) return;
+        if (len == 0)
+        {
+            return;
+        }
 
         // Pre-compute Pseudo-Huber errors using shared helper
         const int StackAllocThreshold = 256;
@@ -109,4 +124,4 @@ public sealed class PseudoHuber : BiInputIndicatorBase
         // Apply rolling mean
         ErrorHelpers.ApplyRollingMean(errors, output, period);
     }
-}
+}