added files.

Slinky/include/ConsoleUI.hpp

@@ -0,0 +1,32 @@
+#pragma once
+
+#include <windows.h>
+#include <string>
+#include <atomic>
+
+namespace Slinky {
+
+class ConsoleUI {
+public:
+    static void Initialize();
+    static void Shutdown();
+
+    static void PrintBanner();
+    static void StartAnimation();
+    static void StopAnimation();
+
+    static void SetStatusText(const char* text);
+    static void PrintError(const char* action, DWORD errorCode);
+
+private:
+    static DWORD WINAPI AnimationThread(LPVOID lpParam);
+
+    static CRITICAL_SECTION s_CriticalSection;
+    static char s_StatusText[512];
+    static std::atomic<bool> s_Running;
+    static HANDLE s_hAnimationThread;
+    static DWORD s_OriginalConsoleMode;
+    static HANDLE s_hConsole;
+};
+
+} // namespace Slinky