export const readFileAsDataURL = (file: File) => new Promise((resolve, reject) => { const reader = new FileReader(); reader.onloadend = (event) => { const result = event.target?.result; if (typeof result === 'string') { resolve(result); return; } reject(new Error('Failed to read file')); }; reader.onerror = (event) => { reject(new Error(`Failed to read file: ${event}`)); }; reader.readAsDataURL(file); });