fix 优化查询

Src/Dlhis.Canteen/Order/Services/Implements/BalanceSummaryService.cs

@@ -185,13 +185,20 @@ public class BalanceSummaryService : IBalanceSummaryService
             })
             .ToPageListAsync(request);
 
-        var amount = await QueryableShiftAndBusinessPlaceAnalysis(request).SumAsync(record => SqlFunc.Abs(record.Amount));
-        var userCount = await QueryableShiftAndBusinessPlaceAnalysis(request).Select(record => record.UserCode).Distinct().CountAsync();
+        var data = await QueryableShiftAndBusinessPlaceAnalysis(request)
+            .Select(record => new
+            {
+                Amount = SqlFunc.AggregateSum(record.Amount),
+                UserCount = SqlFunc.AggregateDistinctCount(record.UserCode),
+                CostCount = SqlFunc.AggregateCount(record.Id),
+            })
+            .FirstAsync();
 
         return new ShiftAndBusinessPlaceAnalysisResponse
         {
-            Amount = amount,
-            Total = userCount,
+            Amount = data?.Amount ?? 0,
+            UserCount = data?.UserCount ?? 0,
+            CostCount = data?.CostCount ?? 0,
             Pagination = page,
         };