87874e64cf
Send the screenshot to the multimodal model inline as a base64 data URL so summarisation no longer requires S3 to be configured or publicly reachable. Only when the PNG exceeds the provider MaxInlineBytes limit do we upload to S3, verify the public URL is reachable, and delete the temporary object once done. Oversized images without S3 now surface a clear hint instead of a hard S3 requirement.