can't set up connected app with Gemini Spark

Gemini Spark supports custom connected apps through MCP, but I tried longbridge MCP. It failed. 


<img width="1726" height="382" alt="Image" src="https://github.com/user-attachments/assets/f7f3e81e-4375-47ab-8eb2-036960a18ca4" />

<img width="996" height="846" alt="Image" src="https://github.com/user-attachments/assets/6f364a04-728d-4658-9c09-49f814739c4b" />

