refactoring

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

include/nxst/infra/fs/directory.hpp

@@ -0,0 +1,32 @@
+// Copyright (C) 2024-2026 NXST contributors
+#pragma once
+#include <string>
+#include <vector>
+
+#include <switch.h>
+
+class Directory {
+  public:
+    explicit Directory(const std::string& path);
+
+    bool good() const {
+        return m_good;
+    }
+    Result error() const {
+        return m_error;
+    }
+    size_t size() const {
+        return m_entries.size();
+    }
+    std::string entry(size_t i) const;
+    bool folder(size_t i) const;
+
+  private:
+    struct Entry {
+        std::string name;
+        bool is_dir;
+    };
+    std::vector<Entry> m_entries;
+    Result m_error{0};
+    bool m_good{false};
+};