main: vibe coded app to feel like paper

Signed-off-by: nfel <nfilsaraee@gmail.com>

lib/utils.ts

@@ -0,0 +1,8 @@
+/**
+ * Format a price in Toman with comma separators
+ * @param price - Price in Toman
+ * @returns Formatted price string with تومان suffix
+ */
+export function formatPrice(price: number): string {
+  return `${price.toLocaleString('fa-IR')} تومان`;
+}