chore: repo cleanup and code quality improvements

- Remove global.json (SDK pinning unnecessary)

- Remove nuget.config, move MyGet source to .csproj RestoreAdditionalProjectSources

- Gitignore ndepend/ entirely, move badges to docs/img/

- Update README.md and docs/ndepend.md badge paths

- Add NDepend project property to QuanTAlib.slnx

- Expand .editorconfig ReSharper/diagnostic suppressions

- Use ArgumentOutOfRangeException instead of ArgumentException

- Use discard _ for unused event sender parameters

- Remove quantalib.code-workspace and sonar-suppressions.json

- Add filter signature SVGs

lib/volatility/tr/Tr.Validation.Tests.cs

@@ -683,7 +683,7 @@ public class TrValidationTests
         Tr.Batch(high, low, close, qOutput);
 
         // Use ValidationHelper for correct TALib index mapping
-        QuanTAlib.Tests.ValidationHelper.VerifyData(qOutput, output, outRange, lookback);
+        ValidationHelper.VerifyData(qOutput, output, outRange, lookback);
     }
 
     [Fact]

lib/volatility/tr/Tr.cs

@@ -152,8 +152,6 @@ public sealed class Tr : AbstractBase
 
         return new TSeries(t, v);
     }
-
-    /// <inheritdoc/>
     public override TSeries Update(TSeries source)
     {
         int len = source.Count;
@@ -258,8 +256,6 @@ public sealed class Tr : AbstractBase
         PubEvent(Last, isNew);
         return Last;
     }
-
-    /// <inheritdoc/>
     public override void Prime(ReadOnlySpan<double> source, TimeSpan? step = null)
     {
         for (int i = 0; i < source.Length; i++)
@@ -267,8 +263,6 @@ public sealed class Tr : AbstractBase
             Update(new TValue(DateTime.UtcNow, source[i]), isNew: true);
         }
     }
-
-    /// <inheritdoc/>
     public override void Reset()
     {
         _s = new State(double.NaN, 0, 0, 0, 0, 0);