Fix building on Windows

src/system.cpp

@@ -2,12 +2,11 @@
 // Created by Palindromic Bread Loaf on 7/21/25.
 //
 
-#include "system.h"
-
 #include <fstream>
 #include <iostream>
 
 #include "bus.h"
+#include "system.h"
 
 // SNES System Implementation
 System::System() : running(false) {

src/system.h

@@ -6,6 +6,7 @@
 #define SYSTEM_H
 
 #include <memory>
+#include <string>
 #include "cpu.h"
 #include "ppu.h"
 #include "apu.h"
@@ -14,7 +15,6 @@
 
 // Main SNES System class
 class System {
-private:
     std::unique_ptr<CPU> cpu;
     std::unique_ptr<PPU> ppu;
     std::unique_ptr<APU> apu;