Feature: 设置过滤条件让指令只在 sandbox 中触发

### Describe the problem related to the feature request

指令开发与调试

### Describe the solution you'd like

过滤器增加一个字符串包含的选项，只要平台名 `包含` sandbox 即可实现

### Describe alternatives you've considered

_No response_

### Additional context

_No response_

No files, tests, or entry points are named in the issue. Locate the filter implementation and the handling of the platform name, then determine where a string-contains option belongs. Done means a filter can match platforms containing "sandbox" and the existing filtering behavior remains intact.

Written by the indexing model from the issue text.