fix(接口定义): 修复接口一键同步进入待更新列表失败问题

--bug=1025581 --user=郭雨琦
https://www.tapd.cn/55049933/bugtrace/bugs/view/1155049933001025581

api-test/frontend/src/business/definition/components/ApiVariable.vue

@@ -430,8 +430,8 @@ export default {
             file: false,
             files: null,
             isEdit: false,
-            max: null,
-            min: null,
+            max: 0,
+            min: 0,
             required: false,
             type: 'text',
             urlEncode: this.urlEncode,
@@ -534,8 +534,8 @@ export default {
           file: false,
           files: null,
           isEdit: false,
-          max: null,
-          min: null,
+          max: 0,
+          min: 0,
           required: false,
           type: 'text',
           urlEncode: this.urlEncode,

api-test/frontend/src/business/definition/model/ApiTestModel.js

@@ -787,6 +787,8 @@ export class KeyValue extends BaseConfig {
     this.enable = undefined;
     this.uuid = undefined;
     this.time = undefined;
+    this.max = 0;
+    this.min = 0;
     this.contentType = undefined;
     this.set(options);
   }