Function fetchZipImageRaw

src/utils/zipImageFiles.ts:84–93

(imageName: string)

 * Metric computations use this path because lossy cached images bias PSNR.
 */
export async function fetchZipImageRaw(imageName: string): Promise<File | null> {
  if (!hasActiveZipArchive()) return null;

  try {
    return await extractZipImage(imageName);
  } catch (err) {
    appLogger.warn(`[ZIP Image] Error extracting raw ${imageName}:`, err);
    return null;
  }
}

/**
 * Extract a mask from ZIP.