fix(doctorstation): 修复会诊模块数据加载异常处理

- 添加了接口响应空值检查，防止因空响应导致的页面崩溃
- 完善了错误处理逻辑，统一返回空数组避免组件渲染异常
- 增强了网络错误捕获，提供更准确的错误信息提示
- 优化了后端服务异常处理，确保查询失败时返回安全的默认值
- 修复了手术收费模块中的用户卡信息引用错误
- 改进了学生合同号处理逻辑，增加了前置条件验证

openhis-server-new/openhis-application/src/main/java/com/openhis/web/paymentmanage/appservice/impl/PaymentRecServiceImpl.java

@@ -1906,11 +1906,13 @@ public class PaymentRecServiceImpl implements IPaymentRecService {
                             : outpatientRegistrationAddParam.getYbMdtrtCertType());
             iAccountService.save(accountZf);
         }
+        String accountContractNo = outpatientRegistrationAddParam.getAccountFormData().getContractNo();
         if (!CommonConstants.BusinessName.DEFAULT_CONTRACT_NO
-                .equals(outpatientRegistrationAddParam.getAccountFormData().getContractNo())
+                .equals(accountContractNo)
                 && !CommonConstants.BusinessName.DEFAULT_STUDENT_CONTRACT_NO
-                        .equals(outpatientRegistrationAddParam.getAccountFormData().getContractNo())
-                && outpatientRegistrationAddParam.getAccountFormData().getContractNo().length() > 11) {
+                        .equals(accountContractNo)
+                && accountContractNo.length() > 11
+                && accountContractNo.startsWith("STUDENT")) {
             // 建立学生自费ACCOUNT
             Account accountStudentZf = new Account();
             BeanUtils.copyProperties(accountFormData, accountStudentZf);
@@ -1920,8 +1922,9 @@ public class PaymentRecServiceImpl implements IPaymentRecService {
                             : outpatientRegistrationAddParam.getYbMdtrtCertType());
             iAccountService.save(accountStudentZf);
 
-            Contract contractYb = contractService.getContract(
-                    outpatientRegistrationAddParam.getAccountFormData().getContractNo().substring("STUDENT".length()));
+            // 截取医保合同号时,先验证是否以"STUDENT"开头
+            String ybContractNo = accountContractNo.substring("STUDENT".length());
+            Contract contractYb = contractService.getContract(ybContractNo);
             if (contractYb != null && 1 == contractYb.getYbFlag()) {
                 // 建立纯医保ACCOUNT
                 Account accountYb = new Account();