feat: add MCP clients and browser-use agent

[dongyuanjushi]

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Remember to update documentation

When adding new features or updating existing functions, please review the documentation to determine if any changes are required. If so, ensure that the documentation is updated accordingly. The source code for the documentation is located at: https://github.com/agiresearch/AIOS/tree/main/docs. Instructions for writing documentation can be found here: https://github.com/agiresearch/AIOS/blob/main/docs/README.md.

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• feat Add new features
• fix Fix bugs
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• style Modify code format like space and comma without changing code logic
• refactor Refactor code structure without adding new features or fixing new bugs
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