Claude Agent SDK 이미지 첨부 지원 프롬프트

1. Replace the current send message component with {参考代码文件1} 2. Reference the async send(prompt: string, attachments?: AttachmentData[], includeSelection?: boolean) from {参考代码文件2} and the export const composeUserContent = (text: string, attachments?: AttachmentData[], selection?: SelectionSnapshot | null) from {参考代码文件3} to implement attachment handling 3. After clicking send, convert attachments to base64 strings and send them to the websocket 4. Reference the code below to rewrite the message handling part of ccsdk/ai-client.ts so that it supports sending attachments {官方文档示例代码docs.claude.com/en/api/agent-sdk/streaming-vs-single-mode} Please think carefully and then execute