refactor(aps): 排产计划报表导出报错解决

- 将ApsPlanDetailServiceImpl中的IApsPlanSheetService替换为ApsPlanSheetMapper
- 直接通过mapper进行数据查询操作，减少服务层依赖
- 修复计划表合并逻辑中的边界条件判断问题
- 确保数据起始行和结束行的有效性验证

klp-aps/src/main/java/com/klp/aps/service/impl/ApsPlanDetailServiceImpl.java

@@ -21,8 +21,8 @@ import com.klp.aps.domain.vo.ApsPlanDetailVo;
 import com.klp.aps.domain.vo.ApsPlanSheetVo;
 import com.klp.aps.domain.entity.ApsPlanDetail;
 import com.klp.aps.mapper.ApsPlanDetailMapper;
+import com.klp.aps.mapper.ApsPlanSheetMapper;
 import com.klp.aps.service.IApsPlanDetailService;
-import com.klp.aps.service.IApsPlanSheetService;
 
 import java.util.*;
 import java.util.stream.Collectors;
@@ -38,7 +38,7 @@ import java.util.stream.Collectors;
 public class ApsPlanDetailServiceImpl implements IApsPlanDetailService {
 
     private final ApsPlanDetailMapper baseMapper;
-    private final IApsPlanSheetService apsPlanSheetService;
+    private final ApsPlanSheetMapper planSheetMapper;
     private final WmsCoilContractRelMapper coilContractRelMapper;
     private final IWmsMaterialCoilService materialCoilService;
 
@@ -223,7 +223,7 @@ public class ApsPlanDetailServiceImpl implements IApsPlanDetailService {
         if (planSheetId == null) {
             return Collections.emptyList();
         }
-        ApsPlanSheetVo planSheet = apsPlanSheetService.queryById(planSheetId);
+        ApsPlanSheetVo planSheet = planSheetMapper.selectVoById(planSheetId);
         if (planSheet == null || planSheet.getPlanDate() == null) {
             return Collections.emptyList();
         }

klp-aps/src/main/java/com/klp/aps/service/impl/ApsPlanSheetServiceImpl.java

@@ -283,7 +283,7 @@ public class ApsPlanSheetServiceImpl implements IApsPlanSheetService {
 
             // ================== 【核心：前7列自动合并】 ==================
             int dataEndRow = r - 1;
-            if (dataStartRow <= dataEndRow) {
+            if (dataStartRow <= dataEndRow && dataEndRow > dataStartRow) {
                 for (int col = 0; col < 7; col++) { // 0~6 共7列
                     CellRangeAddress region = new CellRangeAddress(
                         dataStartRow,