Create option pricing engine structure, test architecture.

src/PricingEngine.hpp

@@ -0,0 +1,26 @@
+//
+// Created by David Doebel  on 05.03.2026.
+//
+
+#ifndef QUANTENGINE_PRICINGENGINE_HPP
+#define QUANTENGINE_PRICINGENGINE_HPP
+#include <memory>
+
+#include "StochasticProcess.hpp"
+
+class Instrument;
+
+class PricingEngine {
+public:
+    PricingEngine() = default;
+    PricingEngine(std::unique_ptr<StochasticProcess> process) : process_(std::move(process)){}
+
+    virtual ~PricingEngine() = default;
+    virtual double calculate(const Instrument& instrument) const = 0;
+protected:
+    std::unique_ptr<StochasticProcess> process_;
+
+};
+
+
+#endif //QUANTENGINE_PRICINGENGINE_HPP