Add super-admin invoices: settings templates and per-business issue flow.

Platform invoice templates live under Settings; each business can list and issue invoices with optional name and a meshkee.com public link.

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

apps/super-admin/src/utils/irtPrice.ts

@@ -0,0 +1,19 @@
+/** Format a numeric price for display in Iranian Toman (IRT). */
+export function formatIrtPrice(value: number | null | undefined): string {
+  if (value === null || value === undefined) return '—'
+  return `${Math.round(value).toLocaleString('en-US')} IRT`
+}
+
+/** Format raw digits into comma-separated groups while typing. */
+export function formatIrtInput(raw: string): string {
+  const digits = raw.replace(/\D/g, '')
+  if (!digits) return ''
+  return Number(digits).toLocaleString('en-US')
+}
+
+/** Parse a formatted IRT input string back to a number. */
+export function parseIrtInput(formatted: string): number | null {
+  const digits = formatted.replace(/\D/g, '')
+  if (!digits) return null
+  return Number(digits)
+}