fix: CDR数据导出添加网元名称列

src/modules/network_data/repository/cdr_event_ims.go

@@ -26,10 +26,10 @@ func (r CDREventIMS) SelectByPage(query model.CDREventIMSQuery) ([]model.CDREven
 		tx = tx.Where("rm_uid = ?", query.RmUID)
 	}
 	if query.BeginTime != 0 {
-		tx = tx.Where("timestamp >= ?", query.BeginTime)
+		tx = tx.Where("created_at >= ?", query.BeginTime)
 	}
 	if query.EndTime != 0 {
-		tx = tx.Where("timestamp <= ?", query.EndTime)
+		tx = tx.Where("created_at <= ?", query.EndTime)
 	}
 	if query.CallerParty != "" {
 		tx = tx.Where("JSON_EXTRACT(cdr_json, '$.callerParty') = ?", query.CallerParty)