Phase 7 alias removal exposed test_token_viz::test_anthropic_history_lock_accessible
which asserted the old aliases (_anthropic_history, _anthropic_history_lock) exist
on the ai_client module. After Phase 7 those aliases are intentionally gone.
Updated test to:
- Verify the new provider_state.get_history('anthropic') pattern (lock + messages attributes)
- Verify the old aliases are NOT present (positive assertion that migration is complete)
This is the canonical post-migration test pattern.
ed