fix(route/showstart): enable allowEmpty for all showstart routes

[trojanyao]

Involved Issue / 该 PR 相关 Issue

Close #

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

/showstart/event/373/0

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

为所有秀动相关路由启用 allowEmpty，即便当前无演出也可订阅。

[dosubot]

Related Documentation

Checked 0 published document(s) in 1 knowledge base(s). No updates required.

^{How did I do? Any feedback?}  

[github-actions]

Successfully generated as following:

http://localhost:1200/showstart/event/373/0 - Success ✔️

<?xml version="1.0" encoding="UTF-8"?>
<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0">
  <channel>
    <title>秀动网 -</title>
    <link>https://www.showstart.com</link>
    <atom:link href="http://localhost:1200/showstart/event/373/0" rel="self" type="application/rss+xml"></atom:link>
    <description>秀动网 - - Powered by RSSHub</description>
    <generator>RSSHub</generator>
    <webMaster>contact@rsshub.app (RSSHub)</webMaster>
    <language>en</language>
    <lastBuildDate>Sun, 22 Feb 2026 12:34:08 GMT</lastBuildDate>
    <ttl>5</ttl>
  </channel>
</rss>

[github-actions]

Successfully generated as following:

http://localhost:1200/showstart/event/373/0 - Success ✔️

<?xml version="1.0" encoding="UTF-8"?>
<rss xmlns:atom="http://www.w3.org/2005/Atom" version="2.0">
  <channel>
    <title>秀动网 -</title>
    <link>https://www.showstart.com/event/list?cityCode=373&amp;showStyle=0</link>
    <atom:link href="http://localhost:1200/showstart/event/373/0" rel="self" type="application/rss+xml"></atom:link>
    <description>秀动网 - - Powered by RSSHub</description>
    <generator>RSSHub</generator>
    <webMaster>contact@rsshub.app (RSSHub)</webMaster>
    <language>en</language>
    <lastBuildDate>Mon, 23 Feb 2026 00:58:09 GMT</lastBuildDate>
    <ttl>5</ttl>
  </channel>
</rss>

[github-actions]

Auto Review

No clear rule violations found in the current diff.

[TonyRL]

This bypasses part of the validity check for route parameters. As you can see from the test output, you can now subscribe with invalid cityCode.