/* V.AI STUDIO — QR Payment / Quote Data v1038
 * Restored from 9db23f9 (v24) — full Excel/PDF export with proper layout
 * Fixes: Excel export broken in v1036 (parameter mismatch, missing layout)
 * Key fixes:
 * - exportExcel/exportDeliveryExcel fully self-contained (no delegation to __vaiOriginal)
 * - Full layout: logo, header, customer info, item images, formulas, QR code
 * - exportPDF/exportDeliveryPDF use multi-page canvas correctly
 * - All global overrides work without index.html original functions
 * - UNIQUE filename with timestamp for multiple downloads (v1038 fix)
 */