feat：非大陆身份证不生成电子签章

mec-biz/src/main/java/com/ym/mec/biz/service/impl/ContractServiceImpl.java

@@ -1091,6 +1091,9 @@ public class ContractServiceImpl implements ContractService, InitializingBean {
 		if(Objects.isNull(studentInfo)){
 			studentInfo = new StudentInfo();
 		}
+		if(StringUtils.isEmpty(studentInfo.getCertificateType())){
+			studentInfo.setCertificateType(CertificateTypeEnum.IDENTITY.getCode());
+		}
 		params.put("studentInfo", studentInfo);
 		params.put("isShowVisualSeal", true);