fix: 增加活动类型选择提示标识

src/views/operation/activity/detail.vue

@@ -12,7 +12,7 @@
         <el-input v-model="form.name" placeholder="请输入活动名称" />
       </el-form-item>
 
-      <el-form-item label="活动类型：">
+      <el-form-item label="活动类型：" prop="activityType">
         <el-select
           v-model="form.platformName"
           placeholder="请选择活动类型"
@@ -204,6 +204,13 @@ export default {
             trigger: "change",
           },
         ],
+        activityType: [
+          {
+            required: true,
+            message: "请选择活动类型",
+            trigger: "change",
+          },
+        ],
         timeList: [
           {
             required: true,