What would you like Teleport to do?

Capture errors raised by fetchers and create appropriate user tasks from those.

Currently we limit ourselves to logs:

	if err != nil {
		if trace.IsNotFound(err) {
			return
		}
		slog.ErrorContext(context.Background(), "Failed to fetch instances", "error", err)
		return
	}

What problem does this solve?

Improves Discover UX. As it is, fetcher errors are not reflected at all in discovery config status which incorrectly makes it appear "healthy, but inactive".

If a workaround exists, please include it.

User needs to analyze discovery service logs to see the error even happened.