- TestDialecticDepth::test_first_turn_runs_dialectic_synchronously:
covered by TestSessionStartDialecticPrewarm::test_turn1_falls_back_to_sync_when_prewarm_missing
(more realistic — exercises the empty-prewarm → sync-fallback path)
- TestDialecticDepth::test_first_turn_dialectic_does_not_double_fire:
covered by TestDialecticLifecycleSmoke (turn 1 flow) and
TestDialecticCadenceAdvancesOnSuccess::test_empty_dialectic_result_does_not_advance_cadence
Both predate the prewarm refactor and test paths that are now
fallback behaviors already covered elsewhere.