Stream Events

Opens a Server-Sent Events (SSE) stream for real-time events from a replica. The connection remains open and events are pushed as they occur.

Each event is delivered as an SSE message in the format data: <JSON>\n\n. A heartbeat ping is sent every 15 seconds to keep the connection alive. Clients should reconnect automatically on disconnect.

All events share a common envelope structure with id (unique event ID), ts (ISO 8601 timestamp), type (event type discriminator), and payload (type-specific data). See the EngineEvent schema for all possible event types.