feat(lead-forms): real file upload under 200KB and Jalali date

Public form file fields compress images or reject oversized files; dates use the full Jalali picker.

apps/web/src/views/LeadFormBuilderView.vue

@@ -276,7 +276,16 @@ function formatValue(val: unknown): string {
   if (Array.isArray(val)) return val.join('، ');
   if (val === true) return 'بله';
   if (val === false) return 'خیر';
-  return val == null ? '' : String(val);
+  if (val == null) return '';
+  const s = String(val);
+  try {
+    const parsed = JSON.parse(s) as { name?: string; dataUrl?: string };
+    if (parsed?.name && parsed?.dataUrl) return `📎 ${parsed.name}`;
+  } catch {
+    /* not a file payload */
+  }
+  if (s.startsWith('data:')) return '📎 فایل پیوست';
+  return s;
 }
 
 function readyIcon(type: LeadFormFieldType | string): IconName {