[Feature] mcp node supports list parameters

[TraceIvan]

MaxKB Version

v1.10.7

Please describe your needs or suggestions for improvements

MCP节点不支持列表参数作为输入：

报错如下：

Please describe the solution you suggest

No response

Additional Information

No response

[baixin513]

感谢反馈，你可以使用引用变量方式。自定义只能是字符串。

[shaohuzhang1]

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Thanks for the feedback, you can use the reference variable method. Customization can only be strings.