refactoring

Co-authored-by: n.fedorov <mail@nfedorov.dev>
Co-committed-by: n.fedorov <mail@nfedorov.dev>

include/nxst/infra/fs/io.hpp

@@ -0,0 +1,19 @@
+// Copyright (C) 2024-2026 NXST contributors
+#pragma once
+#include <string>
+
+#include <switch.h>
+
+#include <nxst/domain/result.hpp>
+
+namespace io {
+    nxst::Result<std::string> backup(size_t index, AccountUid uid);
+    nxst::Result<std::string> restore(size_t index, AccountUid uid, const std::string& title_name);
+
+    Result copyDirectory(const std::string& src, const std::string& dst);
+    void copyFile(const std::string& src, const std::string& dst);
+    Result createDirectory(const std::string& path);
+    Result deleteFolderRecursively(const std::string& path);
+    bool directoryExists(const std::string& path);
+    bool fileExists(const std::string& path);
+}  // namespace io