kimi cli 在第三方供应商情况下，图片上传包含多余参数 || kimi cli In the case of third-party providers, image upload contains redundant parameters

What version of Kimi Code CLI is running?

kimi, version 1.30.0

Which open platform/subscription were you using?

custom

Which model were you using?

kimi-k2p5

What platform is your computer?

everyone

What issue are you seeing?

截取片段：```
'type': 'image_url'}, {'text': '', 'type': 'te
xt'}]; Extra inputs are not permitted, field: 'messages[3].***.list[Chat
MessageContent][2].image_url.id', value: None', 'type': 'invalid_request_
error', 'param': '', 'code': 'invalid_request_error'}}

### What steps can reproduce the bug?

使用多模态图片上传

### What is the expected behavior?

_No response_

### Additional information

_No response_

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### What version of Kimi Code CLI is running?

kimi, version 1.30.0

### Which open platform/subscription were you using?

custom

### Which model were you using?

kimi-k2p5

### What platform is your computer?

everyone

### What issue are you seeing?

Intercepted fragment:```
'type\': \'image_url\'}, {\'text\': \'</image>\', \'type\': \'te
xt\'}]; Extra inputs are not permitted, field: \'messages[3].***.list[Chat
MessageContent][2].image_url.id\', value: None', 'type': 'invalid_request_
error', 'param': '', 'code': 'invalid_request_error'}}

What steps can reproduce the bug?

Use multimodal image uploads

What is the expected behavior?

No response

Additional information

No response

Start by reproducing a multimodal image upload with a custom provider using Kimi CLI 1.30.0, then trace the generated request around the reported messages[3] image_url field. Done means the redundant image_url.id parameter is no longer sent and the provider accepts the request.