feat: stream reply blocks immediately

src/auto-reply/types.ts

@@ -2,6 +2,7 @@ export type GetReplyOptions = {
   onReplyStart?: () => Promise<void> | void;
   isHeartbeat?: boolean;
   onPartialReply?: (payload: ReplyPayload) => Promise<void> | void;
+  onBlockReply?: (payload: ReplyPayload) => Promise<void> | void;
   onToolResult?: (payload: ReplyPayload) => Promise<void> | void;
 };