ComponentDataSourceItemOptions 中 timeout = 5000 是在哪定义的

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1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

中文版示例：
1. 打开 [demo](http://lowcode-engine.cn/demo)；
2. 点击标题；
3. 在右侧修改标题内容为「修改后的标题」；
4. 渲染画布标题组件没有更新显示为「修改后的标题」；

## **Expected behavior (required)** / **预期行为（必填，非常重要）**
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## **Additional context (optional)** / **更多额外信息（可选）**
Any other context of the problem here. / 可以追加更多的额外信息，帮助定位问题

The issue names ComponentDataSourceItemOptions and a timeout value but provides no file, test, reproduction, or environment details. Search the repository for that symbol and `timeout = 5000`, then confirm the defining location and update the issue with enough context to establish what, if anything, should change.

Written by the indexing model from the issue text.