[Feature] AI对话节点工具支持引用变量

[xxyj6450]

MaxKB Version

v2.10.6

Please describe your needs or suggestions for improvements

AI对话节点只能固定选几个工具/技能/agent,需要动态选择工具的功能

Please describe the solution you suggest

建议AI对话节点中工具/技能/agent支持引用变量以支持动态选择工具

Additional Information

No response