misskey-js側にinterfaceを置いて型エラーを解消

packages/misskey-js/src/index.ts

@@ -1,6 +1,6 @@
 import { type Endpoints } from './api.types.js';
 import Stream, { Connection } from './streaming.js';
-import { type StreamEvents } from './streaming.js';
+import type { StreamEvents, IStream, IChannelConnection } from './streaming.js';
 import { type Channels } from './streaming.types.js';
 import { type Acct } from './acct.js';
 import * as consts from './consts.js';
@@ -10,6 +10,8 @@ export type {
 	Channels,
 	Acct,
 	StreamEvents,
+	IStream,
+	IChannelConnection,
 };
 
 export {