Add Arjmand Pharmacy Next.js homepage.

Initial RTL storefront with header, slider, product sections, and local image assets.

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/format.ts

@@ -0,0 +1,7 @@
+export function faDigits(value: string | number) {
+  return String(value).replace(/\d/g, (digit) => "۰۱۲۳۴۵۶۷۸۹"[Number(digit)]);
+}
+
+export function formatPrice(value: number) {
+  return faDigits(value.toLocaleString("en-US"));
+}