Phase 1 left the backend halfway between legacy task payloads and the new executor boundary. This commit finishes the review-fix pass so missing protocol markers fail closed, timed-out subprocesses are killed, and successful analysis runs persist a result contract before task state is marked complete.
Constraint: env312 lacks pytest-asyncio so async executor tests must run without extra plugins
Rejected: Keep missing marker fallback as HOLD | masks protocol regressions as neutral signals
Rejected: Leave service success assembly in AnalysisService | breaks contract-first persistence and result_ref wiring
Confidence: high
Scope-risk: moderate
Reversibility: clean
Directive: Keep backend success state driven by persisted result contracts; do not reintroduce raw stdout parsing in services
Tested: python -m compileall orchestrator tradingagents web_dashboard/backend
Tested: python -m pytest web_dashboard/backend/tests/test_executors.py web_dashboard/backend/tests/test_services_migration.py web_dashboard/backend/tests/test_api_smoke.py web_dashboard/backend/tests/test_main_api.py web_dashboard/backend/tests/test_portfolio_api.py -q
Tested: python -m pytest orchestrator/tests/test_application_service.py orchestrator/tests/test_trading_graph_config.py -q
Not-tested: real provider-backed MiniMax execution
Not-tested: full dashboard websocket/manual UI flow
陈少杰