fix(mill): 修复换辊记录查询逻辑

- 修正了MesRollChangeMapper.xml中的查询条件，添加del_flag = 0过滤已删除记录
- 修改了排序规则，从change_id改为change_time优先排序，确保获取最新的换辊记录
- 注释掉了服务层中统计信息的相关代码，避免不必要的数据加载和计算
- 确保查询能够返回正确的最新换辊记录，提高数据准确性

ruoyi-mill/src/main/java/com/ruoyi/mill/service/impl/MesRollChangeServiceImpl.java

@@ -149,12 +149,12 @@ public class MesRollChangeServiceImpl implements IMesRollChangeService
                 if (rec != null) {
                     cell.put("rollNo", getRollNoByPos(rec, posType));
                     cell.put("onlineTime", rec.getChangeTime());
-                    Map<String, Object> stats = mesRollChangeMapper.selectCoilStats(rec.getChangeTime(), null);
-                    MesRollChangeVo tmp = new MesRollChangeVo();
-                    fillStatsToVo(tmp, stats);
-                    cell.put("workLength",  tmp.getWorkLength());
-                    cell.put("coilCount",   tmp.getCoilCount());
-                    cell.put("totalWeight", tmp.getTotalWeight());
+//                    Map<String, Object> stats = mesRollChangeMapper.selectCoilStats(rec.getChangeTime(), null);
+//                    MesRollChangeVo tmp = new MesRollChangeVo();
+//                    fillStatsToVo(tmp, stats);
+//                    cell.put("workLength",  tmp.getWorkLength());
+//                    cell.put("coilCount",   tmp.getCoilCount());
+//                    cell.put("totalWeight", tmp.getTotalWeight());
                 }
                 byStand.put(standNo, cell);
             }