feat(route): /zhihu/daily/section/:sectionId add pubDate (#13020)

lib/v2/zhihu/daily_section.js

@@ -1,5 +1,6 @@
 const got = require('@/utils/got');
 const utils = require('./utils');
+const { parseDate } = require('@/utils/parse-date');
 
 // 参考：https://github.com/izzyleung/ZhihuDailyPurify/wiki/%E7%9F%A5%E4%B9%8E%E6%97%A5%E6%8A%A5-API-%E5%88%86%E6%9E%90
 // 文章给出了v7版 api的信息，包含全文api
@@ -21,6 +22,7 @@ module.exports = async (ctx) => {
             const url = 'https://news-at.zhihu.com/api/7/news/' + story.id;
             const item = {
                 title: story.title,
+                pubDate: parseDate(story.date, 'YYYYMMDD'),
                 description: '',
                 link: 'https://daily.zhihu.com/story/' + story.id,
             };