Vercel AI SDK 更新 Moonshot 提供商，支持视频输入
原标题：@ai-sdk/moonshotai@2.0.45
AI 摘要
Vercel AI SDK 发布了 @ai-sdk/moonshotai@2.0.45 更新，该版本不再基于 @ai-sdk/openai-compatible，而是由包自身实现聊天功能，并支持视频输入，将视频文件转换为 Moonshot 的 video_url 内容部分。同时，音频和 PDF 文件部分现在会在客户端抛出错误，并新增了 promptCacheKey 和 safetyIdentifier 等选项，调整了 reasoningEffort 和 reasoning 映射。
正文节选
### Patch Changes - 4d1b345: feat(provider/moonshotai): own the chat implementation, support video input. The provider no longer builds on `@ai-sdk/openai-compatible`; the converter, language model, and helpers are owned by the package. Video file parts (e.g. `mediaType: 'video/mp4'`) are converted to Moonshot's `video_url` content parts for video-capable models (`kimi-k3`, `kimi-k2.7-code`, `kimi-k2.6`, `kimi-k2.5`). Audio and PDF file parts now throw client-side (the API rejects those part ty