Update carousels, card hover, and IranBay branding.

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

lib/cellNumber.ts

@@ -0,0 +1,22 @@
+/** Normalize Iranian/local input to E.164 (e.g. +989121111111). */
+export function toE164CellNumber(input: string): string {
+  const digits = input.replace(/\D/g, "");
+
+  if (!digits) {
+    return "";
+  }
+
+  if (digits.startsWith("98")) {
+    return `+${digits}`;
+  }
+
+  if (digits.startsWith("0")) {
+    return `+98${digits.slice(1)}`;
+  }
+
+  if (digits.length === 10 && digits.startsWith("9")) {
+    return `+98${digits}`;
+  }
+
+  return `+${digits}`;
+}