fix(route/damai): allow to return empty results

[Konano]

Involved Issue / 该 PR 相关 Issue

Close #17158

Example for the Proposed Route(s) / 路由地址示例

/damai/activity/全部/全部/全部/初音未来

New RSS Route Checklist / 新 RSS 路由检查表

• New Route / 新的路由
  • Follows Script Standard / 跟随 路由规范
• Anti-bot or rate limit / 反爬/频率限制
  • If yes, do your code reflect this sign? / 如果有, 是否有对应的措施?
• Date and time / 日期和时间
  • Parsed / 可以解析
  • Correct time zone / 时区正确
• New package added / 添加了新的包
• Puppeteer

Note / 说明

[github-actions]

Successfully generated as following:

http://localhost:1200/damai/activity/全部/全部/全部/初音未来 - Success ✔️

<?xml version="1.0" encoding="UTF-8"?>
<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0">
  <channel>
    <title>大麦网票务 - 全国 - 全部分类 - 初音未来</title>
    <link>https://search.damai.cn/search.htm</link>
    <atom:link href="http://localhost:1200/damai/activity/%E5%85%A8%E9%83%A8/%E5%85%A8%E9%83%A8/%E5%85%A8%E9%83%A8/%E5%88%9D%E9%9F%B3%E6%9C%AA%E6%9D%A5" rel="self" type="application/rss+xml"></atom:link>
    <description>大麦网票务 - 全国 - 全部分类 - 初音未来 - Powered by RSSHub</description>
    <generator>RSSHub</generator>
    <webMaster>contact@rsshub.app (RSSHub)</webMaster>
    <language>en</language>
    <lastBuildDate>Wed, 16 Oct 2024 08:52:59 GMT</lastBuildDate>
    <ttl>5</ttl>
  </channel>
</rss>