fix: 修正KP计算中百分比值的下限为0

features/pm/performance.go

@@ -240,6 +240,12 @@ func saveKPIDataC(kpiReport KpiReport, index int64) int64 {
 			item["value"] = 0
 			item["err"] = err.Error()
 		} else {
+			if *v.Unit == "%" && result > 100 {
+				result = 100
+			}
+			if *v.Unit == "%" && result < 0 {
+				result = 0
+			}
 			item["value"] = result
 		}
 		KpiValues = append(KpiValues, item)