feat(engine): add FinlyticEngine microservice with trade lifecycle, AI reasoning gate, composite scoring, and unit tests

FinlyticEngine/Services/Derivatives/IKnockOutDerivativeResolver.cs

@@ -0,0 +1,16 @@
+using System.Threading;
+using System.Threading.Tasks;
+using FinlyticCore.Dtos.TechnicalAnalysis;
+using FinlyticCore.Dtos.Trading;
+
+namespace FinlyticEngine.Services.Derivatives;
+
+public interface IKnockOutDerivativeResolver
+{
+    Task<DerivativeSelectionDto?> ResolveOptimalTurboAsync(
+        string underlyingIsin,
+        SignalDirection direction,
+        decimal chartStopLoss,
+        decimal currentPrice,
+        CancellationToken cancellationToken = default);
+}