Function tracked

tracked<T>(id: string, data: T): TrackedEvent<T>
Wrap a server-sent event with a unique ID for resumable subscriptions.

When a handler yields a TrackedEvent, the server sends the event with its ID. If the client disconnects and reconnects with the last received ID, the handler can skip already-delivered events.
Type Parameters
- T
Parameters
- id: string
  A unique, monotonically increasing identifier for this event.
- data: T
  The event payload to send to the client.
Returns TrackedEvent<T>
A TrackedEvent wrapper.
Example
```
async function* handler({ incoming }) {
    yield tracked('evt-1', { message: 'Hello' });
    yield tracked('evt-2', { message: 'World' });
}
```
- Defined in libs/server/src/Subscription.ts:58