added manager singleton logic

src/Manager.cpp

@@ -2,4 +2,13 @@
 // Created by black on 12.06.25.
 //
 
-#include "emulator/Manager.h"
+#include "Manager.h"
+
+#include <utility>
+
+Manager::Manager(std::string path): m_path(std::move(path)) {}
+
+Manager * Manager::getInstance(const std::string &program_path) {
+    static Manager instance{program_path};
+    return &instance;
+}