Function fileToDataURL

frontend/src/components/UpdateImageUpload.tsx:9–16

(file: File)

// Helper function to convert file to data URL
function fileToDataURL(file: File): Promise<string> {
  return new Promise((resolve, reject) => {
    const reader = new FileReader();
    reader.onload = () => resolve(reader.result as string);
    reader.onerror = (error) => reject(error);
    reader.readAsDataURL(file);
  });
}

interface Props {
  updateImages: string[];