Component function to get current stats

Periodically, workpools emit logs like:

```
'{"component":"workpool","event":"report","canceled":0,"completed":56,"failed":0,"lastReportTs":1769543887878,"retries":0,"succeeded":56,"running":4,"backlog":0,"failureRate":0,"permanentFailureRate":0}'
```

It would be useful if there was a query that could be executed against a workpool to get this so that it can be shipped to analytics-specific systems without being conflated with other logs.