Image input
Understand the current limitation: `@orcushq/deepseek` does not support image input or image uploads.
The current @orcushq/deepseek implementation does not support image uploads or image input. Passing image content to the SDK is rejected with DeepSeekUnsupportedFeatureError. Use text inputs with the supported conversation and invocation APIs.
Image input is not supported
The image-upload flow, upload-token caching, and image-part aliases are not available in this SDK. Do not rely on image-upload examples from other provider SDKs when configuring DeepSeekWeb.