Revert "fix: update order cancellation response check to use 'result' key"

This reverts commit 241785ab91.

routes/assembly.py

@@ -151,7 +151,7 @@ def cancel_assembly():
             return jsonify(response)
         order_id = assembly.order_id
         sipro_response = sipro.api.orders.cancel_order_assembly(order_id)
-        if not sipro_response.get('result'):
+        if not sipro_response.get('ok'):
             response = {
                 'ok': False,
                 'message': f'Ошибка: {sipro_response.get("message")}'