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/projectManagement/vo/SavePlanNodeVo.java

@@ -4,8 +4,8 @@
import lombok.Data;
import lombok.NoArgsConstructor;

import javax.validation.constraints.NotBlank;
import javax.validation.constraints.NotNull;
import jakarta.validation.constraints.NotBlank;
import jakarta.validation.constraints.NotNull;
import java.io.Serializable;

/**