- Replace Process.sleep(N) with explicit synchronization:
render(view) to force LV mailbox drain, PubSub assert_receive for
leader election, and render_hook sync guarantees
- Add batch_packet_fixtures/2 using Repo.insert_all for bulk test
fixtures (200 inserts -> 1 round trip)
- Remove sleeps from historical_loading_test — tests query DB
directly, don't need LV async processing
Coalesce rapid PubSub notifications into single 2-second delayed DB query. Remove tests for removed :update_time_display handler.
Ultraworked with Sisyphus
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
