fix: 修改新增绑定逻辑，避免重复绑定产品

yuan

2026-07-15 07496adb3a0c61e48c660e0cb4ee95d44782f05d

 src/main/java/com/ruoyi/measuringinstrumentledger/service/MeasuringInstrumentLedgerService.java

@@ -6,7 +6,7 @@
import com.ruoyi.measuringinstrumentledger.dto.MeasuringInstrumentLedgerDto;
import com.ruoyi.measuringinstrumentledger.pojo.MeasuringInstrumentLedger;

import javax.servlet.http.HttpServletResponse;
import jakarta.servlet.http.HttpServletResponse;
import java.io.IOException;

/**