[错误]: 使用第三方平台模型调用 MCP 工具或上传附件时出现 HTTP 错误 400

Issue Checklist

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Platform

Windows

Version

2.1.3

Bug Description

When using models from platforms like AiOnly to call MCP tools, or uploading attachments, an HTTP error 400 is prompted. Error Name: AI_APICallError Error Message: Stack Trace: null Status Code: 400

Steps To Reproduce

1. Select a model from a third-party platform
2. Write a prompt to use MCP tool XX to do something
3. Return error message

Expected Behavior

Should execute normally

Relevant Log Output

Additional Context

No response