fix(user/index): 修复修改/新增用户时，促销身份id为null调用接口报错问题

src/views/system/user/index.vue

@@ -344,9 +344,9 @@
           </el-col>
         </el-row>
         <!-- 促销权限配置 -->
-        <el-row v-show="form.proStatus">
+        <el-row v-if="form.proStatus">
           <el-col :span="12">
-            <el-form-item label="促销角色">
+            <el-form-item label="促销角色" prop="privilegeId">
               <el-radio-group v-model="form.privilegeId">
                 <el-radio :value="1"
                   label="城市经理"></el-radio>
@@ -501,6 +501,7 @@
       phonenumber: [{ pattern: /^1[3|4|5|6|7|8|9][0-9]\d{8}$/, message: "请输入正确的手机号码", trigger: "blur" }],
       postId: [{ required: true, message: "请选择岗位", trigger: "change" }],
       roleId: [{ required: true, message: "请选择角色", trigger: "change" }],
+      privilegeId: [{ required: true, message: "请选择促销角色", trigger: "change" }]
     }
   });
 
@@ -713,6 +714,7 @@
       postOptions.value = response.posts;
       roleOptions.value = response.roles;
       open.value = true;
+      
       title.value = "添加用户";
       form.value.password = initPassword.value;
     })
@@ -759,22 +761,14 @@
         form.value.workCityNum = form.value.workCityList && form.value.workCityList[1]
         // 促销开关 true 转 0，false 转 1
         form.value.proStatus = form.value.proStatus == true ? 0 : 1;
-        if (form.value.userId != undefined) {
-          updateUser(form.value).then(response => {
-            proxy.$modal.msgSuccess("修改成功");
-            open.value = false;
-            getList();
-          });
-        } else {
-          addUser(form.value).then(response => {
-            proxy.$modal.msgSuccess("新增成功");
-            open.value = false;
-            getList();
-          });
-        }
+        await form.value.userId ? updateUser(form.value) : addUser(form.value);
+        proxy.$modal.msgSuccess(`${form.value.userId ? '修改' : '新增'}修改成功`);
+        open.value = false;
+        getList();
 
         // 同步促销角色权限，给另外一个系统
-         await openPromotionSystemAPI({
+        if (form.value.privilegeId === null) return
+        await openPromotionSystemAPI({
           loginName: form.value.userName,
           privilegeId: form.value.privilegeId,
           status: form.value.proStatus