WebSocket update flow

WebSocket channels provide update fan-out to active clients.

Sequence

1. A configuration value is written.
2. The API publishes an update event.
3. Subscribed SDK clients receive event payloads.
4. Local caches update.
5. Listeners execute application callbacks.

Reliability considerations

• Reconnect with backoff on disconnect.
• Validate event ordering using version numbers.
• Keep listener handlers non-blocking.