Bridges closed play_events to the scrobble_queue: loads the event,
applies the Qualifies() threshold, checks user LB config (enabled + token),
and inserts via ON CONFLICT DO NOTHING for idempotency. Best-effort —
callers (playevents.Writer hooks, Task 8) will log and swallow errors.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
