Phase 1.1 migrated src/conductor_tech_lead.py:68 from ai_client.send() to
ai_client.send_result(). The 3 tests in TestConductorTechLead mocked
src.ai_client.send which is no longer called by the production code,
causing "send was called 0 times" failures.
Changes:
- Replace patch("src.ai_client.send") with patch("src.ai_client.send_result")
- Wrap mock return_value with Result(data=...) and mock side_effect with
Result(data=...) values
- Add "from src.result_types import Result" import
All 9 tests in tests/test_conductor_tech_lead.py pass (3 migrated + 6
unaffected topological sort tests).
Applied 236 return type annotations to functions with no return values
across 100+ files (core modules, tests, scripts, simulations).
Added Phase 4 to python_style_refactor track for remaining 597 items
(untyped params, vars, and functions with return values).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>