Merge remote-tracking branch 'origin/milestone-20260327-金币日常优化2.0' into milestone-20260327-金币日常优化3.0

src/main/java/com/example/demo/controller/cash/CashCollectionController.java

@@ -677,6 +677,13 @@ public class CashCollectionController {
                         cashRecord.getPaymentCurrencyOrig(), languageCode);
                 cashRecord.setPaymentCurrencyOrig(chinesePaymentCurrencyOrig);
             }
+
+            // 转换数量单位
+            if (cashRecord.getNumUnit() != null && !cashRecord.getNumUnit().isEmpty()) {
+                String chineseNumUnit = translationService.findChineseSimplifiedByTranslation(
+                        cashRecord.getNumUnit(), languageCode);
+                cashRecord.setNumUnit(chineseNumUnit);
+            }
         }
     }