[BUG]: validation error for ExtractedData summary Input should be a valid string（截图处理出现错误）

[Jays-1111]

🐛 Bug description [Please make everyone to understand it]

错误：validation error for ExtractedData summary Input should be a valid string [type=string_type, input_value=['* 步骤1: 打开MineCo..., 当前记录0个。'], input_type=list]

🧑‍💻 Step to reproduce

1.连接custom server url， 使用qwen3-4B-vl 模型
2.开启屏幕截图
3.截图处理出现错误，60s为间隔

👾 Expected result

The bug will be fixed and the function can run successful.

🚑 Any additional information

No response

🛠️ MineContext Version

v0.1.7

💻 Platform Details

windows11：