## Summary
- Adds 6 Playwright E2E tests for queue integration: view page, create
basic queue, create unlogged queue, delete queue, purge messages, and
send test message
- Adds `aria-label` to icon-only Purge and Delete buttons in
`QueueTab.tsx` for reliable test selectors
- Follows existing `cron-jobs.spec.ts` patterns for setup/teardown and
API helpers
## Test plan
- [x] All 6 queue integration tests pass locally against self-hosted
Supabase
- [x] Tests run stably in parallel (3 workers)
- [x] Cleanup via `withSetupCleanup` ensures no leftover test queues
