refactor(constants, exporter): 更新红包领取状态映射以支持YMT数据源

- 修改OrderCashReceiveStatus映射，调整状态值以符合YMT数据源的要求
- 在BuildSQL函数中添加条件逻辑，根据数据源动态映射红包领取状态，确保SQL构建的准确性
- 提升代码可读性，确保状态映射逻辑清晰明了

server/internal/constants/enums.go

@@ -96,12 +96,12 @@ var ThirdPartyType = map[int]string{
 	2: "内部供应商",
 }
 
-// OrderCashReceiveStatus 红包领取状态映射
+// OrderCashReceiveStatus 红包领取状态映射（1 待领取 2 领取中 3 领取成功 4 领取失败）
 var OrderCashReceiveStatus = map[int]string{
-	0: "待领取",
-	1: "领取中",
-	2: "领取成功",
-	3: "领取失败",
+	1: "待领取",
+	2: "领取中",
+	3: "领取成功",
+	4: "领取失败",
 }
 
 // OrderCashChannel 红包渠道映射

server/internal/exporter/sqlbuilder.go

@@ -168,7 +168,12 @@ func BuildSQL(req BuildRequest, whitelist map[string]bool) (string, []interface{
 			}
 		}
 		if t == "order_cash" && f == "receive_status" {
-			cols = append(cols, "CASE `order_cash`.receive_status WHEN 0 THEN '待领取' WHEN 1 THEN '领取中' WHEN 2 THEN '领取成功' WHEN 3 THEN '领取失败' ELSE '' END AS `order_cash.receive_status`")
+			// 营销与易码通枚举不同，按数据源分别映射
+			if req.Datasource == "ymt" {
+				cols = append(cols, "CASE `order_cash`.receive_status WHEN 1 THEN '待领取' WHEN 2 THEN '领取中' WHEN 3 THEN '领取成功' WHEN 4 THEN '领取失败' ELSE '' END AS `order_cash.receive_status`")
+			} else {
+				cols = append(cols, "CASE `order_cash`.receive_status WHEN 0 THEN '待领取' WHEN 1 THEN '领取中' WHEN 2 THEN '领取成功' WHEN 3 THEN '领取失败' ELSE '' END AS `order_cash.receive_status`")
+			}
 			continue
 		}
 		// YMT 的 order_cash 表无 is_confirm 字段，输出占位常量