fix(pricing): restore group info on model cards

Uncomment the group ratio display that was hidden in a95331a8.

web/src/components/table/model-pricing/view/card/PricingCardView.jsx

@@ -346,11 +346,9 @@ const PricingCardView = ({
                             ? parseFloat(model.completion_ratio.toFixed(3))
                             : t('无')}
                         </div>
-                        {/* 分组定价已隐藏
                         <div>
                           {t('分组')}: {priceData?.usedGroupRatio ?? '-'}
                         </div>
-                        */}
                       </div>
                     </div>
                   )}