Two UX fixes from feedback:
- Clicking a coverage card on a worker was also setting the GLOBAL 'process first'
priority (and silently re-queuing that kind's failed items) — so picking a worker's
coverage reached across and re-prioritised every worker. Now a coverage card just
switches the view; priority changes only via the top Movies/Shows/Auto tabs, and
re-queuing is the explicit 'Retry all failed' button. (Removed the now-dead
requeueFailed helper.)
- 'Retry all failed' now re-queues EVERY coverage kind the worker handles (movie+show,
etc.), not just the tab you're viewing — matching the 'all' in the label.
3 wiring tests; node --check clean.
