[Feature] Chat Completion Image Resize Before Upload，Chat图片上传前压缩大小

[Congyuwang]

Problem Description Because /chat/completion only uses so many pixels at max, uploading the full size image often times is very slow, and causes delay. I think it would be nice to pre-compress and pre-resize the image to a proper size before upload.

Proposed Solution Please provide a clear and concise description of what you would like to see in terms of a function or solution.

Additional Context Here we have gpt-4o gpt-4o-mini related image resize information: https://openai.com/api/pricing/.

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问题描述 上传图片大、慢、用户体验差。

解决思路 图片resize以及压缩等，提高图片上传效率。