Fix nested form breaking Mark Paid & Deliver button

app.py

@@ -1142,6 +1142,8 @@ def admin_request(rid):
 
         elif action == 'mark_paid_deliver':
             # Finalize: record Square payment ref, attach approved MP3s, email customer.
+            # Also capture the deliver_wav checkbox from the same form.
+            update_request(rid, deliver_wav=1 if request.form.get('deliver_wav') else 0)
             if req.get('customer_approved', 'none') == 'none':
                 flash('Customer must approve a version before you can mark paid or deliver.', 'error')
                 return redirect(url_for('admin_request', rid=rid))