会员等级：1、等级设置中新增/修改页面，“等级有效期”修改为必填。2、更新会员等级弹窗中，“等级有效期”修改为必填。

src/views/ecw/memberManagement/operatingLevel/index.vue

@@ -212,7 +212,8 @@ export default {
         ],
         validityPeriod: [
           {
-            validator: this.validatePositiveIntegerorNull,
+            required: true,
+            validator: this.validatePositiveInteger,
             trigger: "blur"
           }
         ],

src/views/member/user/memberDetails.vue

@@ -469,7 +469,7 @@
           <el-form-item :label="$t('等级:')" prop="level">
             <dict-selector v-model="levelDetails.level"  :disabled="levelDetailsCanEdit" clearable :type="DICT_TYPE.MEMBERSHIP_LEVELS" />
           </el-form-item>
-          <el-form-item :label="$t('等级有效期:')">
+          <el-form-item :label="$t('等级有效期:')" prop="validityPeriod">
             <el-date-picker type="datetime" :placeholder="$t('请选择日期')" :disabled="levelDetailsCanEdit" v-model="levelDetails.validityPeriod" value-format="yyyy-MM-dd HH:mm:ss"></el-date-picker>
           </el-form-item>
           <el-form-item :label="$t('等级特殊设置')">
@@ -661,6 +661,13 @@ export default {
             trigger: "blur"
           }
         ],
+        validityPeriod: [
+          {
+            required: true,
+            message: this.$t("等级有效期不能为空"),
+            trigger: "blur"
+          }
+        ],
         remarks: [
           {
             required: true,