fix: persist PDA picking progress incrementally

firstleg/src/main/java/com/baiyue/firstleg/dto/LoadingPickDtos.java

@@ -47,7 +47,7 @@ public final class LoadingPickDtos {
     ) {
     }
 
-    /** PDA 在线草稿只在员工提交时发送一次，服务端原子处理整批明细。 */
+    /** PDA 已即时提交的明细不重复包含；收尾时服务端原子处理剩余全部待拣明细。 */
     public record BatchRequest(
         @NotNull @Min(1) Long warehouseId,
         @NotNull @Min(1) Long loadingPlanId,

firstleg/src/main/java/com/baiyue/firstleg/mapper/LoadingPickItemMapper.java

@@ -199,7 +199,7 @@ public interface LoadingPickItemMapper extends BaseMapper<LoadingPickItemEntity>
                         WHERE plan_item.id = fl_loading_pick_item.loading_plan_item_id
                           AND plan_item.deleted = 0)
            AND item_status IN ('PENDING', 'PICKING')
-           AND picked_package_count < #{finalCount}
+           AND picked_package_count <= #{finalCount}
            AND #{finalCount} < planned_package_count
         """)
     int partial(@Param("id") long id, @Param("finalCount") int finalCount,

firstleg/src/main/java/com/baiyue/firstleg/service/LoadingPickService.java

@@ -405,7 +405,7 @@ public class LoadingPickService {
         requirePackageUnit(item);
         if (repository.partial(itemId, request.finalPickedPackageCount(), request.version(),
             request.warehouseId()) != 1) {
-            throw conflict("部分拣货箱数必须大于已拣箱数且小于计划箱数，或明细版本已变化");
+            throw conflict("部分拣货最终箱数不能小于已拣箱数且必须小于计划箱数，或明细版本已变化");
         }
         insertHistory(taskId, itemId, operationId, requestHash, "PARTIAL",
             request.finalPickedPackageCount(), null, operatorId, operatorName);
@@ -1068,9 +1068,9 @@ public class LoadingPickService {
                 int current = count(item.getPickedPackageCount());
                 int planned = count(item.getPlannedPackageCount());
                 if (requestItem.finalPickedPackageCount() == null
-                    || requestItem.finalPickedPackageCount() <= current
+                    || requestItem.finalPickedPackageCount() < current
                     || requestItem.finalPickedPackageCount() >= planned) {
-                    throw conflict("PARTIAL最终箱数必须大于已拣且小于计划箱数");
+                    throw conflict("PARTIAL最终箱数不能小于已拣且必须小于计划箱数");
                 }
             } else if ("SKIP".equals(action)) {
                 if (requestItem.pickedPackageCount() != null || requestItem.finalPickedPackageCount() != null) {