fix: export HealthCheckConfig and WebSocketClientOptions types

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Co-Authored-By: Claude <noreply@anthropic.com>

Author: kevinypfan

src/index.ts

@@ -1,2 +1,3 @@
 export { RestClientFactory as RestClient } from './rest';
 export { WebSocketClientFactory as WebSocketClient } from './websocket';
+export type { HealthCheckConfig, WebSocketClientOptions } from './websocket';