The worker-4 recovery brought in the trace-summary helper split and A/B harness updates, but the cherry-pick left conflict markers around build_trace_payload in profile_stage_chain.py. This follow-up keeps the merged import-based shape and records the cleanup as a standalone reversible step.\n\nConstraint: Preserve the recovered trace payload shape while removing only the cherry-pick residue\nRejected: Re-run the cherry-pick from scratch | unnecessary after the resolved file already passed targeted verification\nConfidence: high\nScope-risk: narrow\nDirective: If profile_stage_chain.py is touched again, verify the file is marker-free before running compile/test to avoid silent recovery drift\nTested: python -m pytest -q orchestrator/tests/test_contract_v1alpha1.py tradingagents/tests/test_research_guard.py orchestrator/tests/test_llm_runner.py orchestrator/tests/test_live_mode.py orchestrator/tests/test_profile_stage_chain.py orchestrator/tests/test_profile_ab.py; python -m orchestrator.profile_stage_chain --help; python -m compileall orchestrator/profile_stage_chain.py orchestrator/profile_trace_utils.py orchestrator/profile_ab.py orchestrator/tests/test_profile_ab.py tradingagents/tests/test_research_guard.py\nNot-tested: Live-provider end-to-end profile_ab comparison on real traces
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