fix: 添加型号缓存以避免重复导入相同产品型号

yuan

昨天 775262c1dd192df3450c1bcf7c66b74d75e9dc9f

 src/main/java/com/ruoyi/collaborativeApproval/service/DutyPlanService.java

@@ -6,7 +6,7 @@
import com.ruoyi.collaborativeApproval.dto.DutyPlanDTO;
import com.ruoyi.collaborativeApproval.pojo.DutyPlan;

import javax.servlet.http.HttpServletResponse;
import jakarta.servlet.http.HttpServletResponse;
import java.util.List;
import java.util.Map;