Addresses 4 actionable findings (1 P1 + 3 P2) from ce-code-review of
feat/ui-ue-enhancement (PR #13), now merged to main (8066e0b).
P1 — expert_step payload alignment (_phase_executor.py)
The thinking/tool_call/tool_result event payloads were missing the
fields the frontend WsServerMessage contract requires
(expert_name/expert_color/content/step). Frontend code consuming these
events silently degraded. Now all expert_step broadcasts carry the
full contract; tool_call/tool_result keep step_data for the raw payload.
P2 #1 — execute_stream CancellationToken registration (config_driven.py)
execute_stream() bypassed BaseAgent.execute() and never registered a
CancellationToken, so cancel_task() could not cooperatively cancel a
streaming task. Now registers the token and cleans it up in finally.
P2 #2 — team_synthesis orphan milestone cleanup (orchestrator.py)
If synthesis streaming was interrupted (cancel/exception), no terminal
team_synthesis event was emitted, leaving the frontend streaming
milestone spinning forever. Now an inner try/except emits a terminal
team_synthesis with status=cancelled|error before re-raising, so the
frontend can finalize the milestone. The success path also carries
the synthesis_id.
P2 #3 — synthesis_id dedup (orchestrator.py + types.ts + chatStream.ts)
Without an identifier, the frontend could not precisely match a
team_synthesis terminal event to its streaming milestone (especially
across retries/concurrent teams). The backend now injects a stable
synthesis_id (`{plan.id}:synthesis`) into both team_synthesis_chunk
and team_synthesis events; the frontend uses it for exact milestone
matching and treats error/cancelled status as terminal.
Test updates
- Updated test_thinking_events_forwarded_as_expert_step to assert the
new payload contract (expert_id/name/color/content/step).
- Added test_tool_call_events_forwarded_as_expert_step covering
tool_call/tool_result payload shape (content=tool_name摘要 +
step_data=原始 payload).
Verification
- ruff check: clean
- pytest tests/unit/experts/test_phase_executor_streaming.py: 14/14
- npm run typecheck: clean
- vitest: 126/127 (1 unrelated baseline failure in tauri-auth.test.ts)
Residuals doc: docs/residual-review-findings/feat-ui-ue-enhancement.md
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