fix: 修复平台端商户订单与打印页测试问题

修复平台管理员在商户订单页查看详情等操作时出现“订单不存在”的问题，并完善商户订单查询筛选逻辑。同步修复商户订单打印页电话展示与积分信息展示，满足测试项要求。

Made-with: Cursor

mer_plat_admin/src/api/merchantOrder.js

@@ -10,6 +10,17 @@
 
 import request from '@/utils/request';
 
+function normalizeMerchantOrderParams(params = {}) {
+  const normalized = { ...params };
+  const merId = Number(normalized.merId);
+  if (!Number.isFinite(merId) || merId <= 0) {
+    delete normalized.merId;
+  } else {
+    normalized.merId = merId;
+  }
+  return normalized;
+}
+
 /**
  * 商户订单 列表
  * @param params
@@ -18,7 +29,7 @@ export function merchantOrderListApi(params) {
   return request({
     url: '/admin/merchant/order/list',
     method: 'get',
-    params,
+    params: normalizeMerchantOrderParams(params),
   });
 }
 
@@ -30,7 +41,7 @@ export function merchantOrderStatusNumApi(params) {
   return request({
     url: '/admin/merchant/order/status/num',
     method: 'get',
-    params,
+    params: normalizeMerchantOrderParams(params),
   });
 }
 

mer_plat_admin/src/views/merchantOrder/orderPrint.vue

@@ -33,6 +33,12 @@
             <td class="label">支付时间：</td>
             <td>{{ orderData.payTime || '-' }}</td>
           </tr>
+          <tr>
+            <td class="label">使用积分：</td>
+            <td>{{ orderData.useIntegral || 0 }}</td>
+            <td class="label">积分抵扣：</td>
+            <td>¥ {{ orderData.integralPrice || '0.00' }}</td>
+          </tr>
         </table>
       </div>
 
@@ -44,7 +50,7 @@
             <td class="label">收货人：</td>
             <td>{{ orderData.realName }}</td>
             <td class="label">联系电话：</td>
-            <td>{{ orderData.userPhone }}</td>
+            <td>{{ orderData.userPhone || '-' }}</td>
           </tr>
           <tr>
             <td class="label">收货地址：</td>