add(storage): implement LittleFS initialization and static file handling

components/storage/include/storage.h

@@ -0,0 +1,29 @@
+#ifndef STORAGE_H
+#define STORAGE_H
+
+#include "esp_err.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+  /**
+   * @brief Initialize and mount LittleFS filesystem
+   *
+   * @return ESP_OK on success, error code otherwise
+   */
+  esp_err_t storage_init(void);
+
+  /**
+   * @brief Get the mount point for the LittleFS filesystem
+   *
+   * @return Pointer to the mount point string (e.g., "/data")
+   */
+  const char *storage_get_mount_point(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* STORAGE_H */