feat(frontend): add card-to-iban interface

frontend/app/utils/card.ts

@@ -0,0 +1,23 @@
+const persianDigits = '۰۱۲۳۴۵۶۷۸۹'
+const arabicDigits = '٠١٢٣٤٥٦٧٨٩'
+
+export function normalizeCard(value: string): string {
+  return value
+    .replace(/[۰-۹]/g, (digit) => String(persianDigits.indexOf(digit)))
+    .replace(/[٠-٩]/g, (digit) => String(arabicDigits.indexOf(digit)))
+    .replace(/[\s-]/g, '')
+}
+
+export function validCard(value: string): boolean {
+  return /^\d{16}$/.test(value)
+}
+
+export function formatCard(value: string): string {
+  const digits = normalizeCard(value).replace(/\D/g, '').slice(0, 16)
+
+  return digits.replace(/(\d{4})(?=\d)/g, '$1 ')
+}
+
+export function formatIBAN(value: string): string {
+  return value.replace(/(.{4})(?=.)/g, '$1 ')
+}