fix(api): Phase R-R2.2 首席架構師 72/100 P2 修復

P2-01 signal_worker.py: persisted_to_pg 改用 getattr 防 BrainIncident AttributeError
P2-02 IIncidentEngine Protocol: update_incident_status → update_status 對齊 brain 實作
P2-03 config.py USE_NEW_ENGINE: 標記失效 + 回滾路徑更正 (git revert 而非 kubectl)
ADR-046: Option B (IncidentConverter) 決策完成，待實作清單更新
ADR-024: 審查結論 + 正式回滾指令更新
Skill 02: v2.5 版本記錄

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/api/src/services/incident_engine.py

@@ -76,12 +76,12 @@ class IIncidentEngine(Protocol):
         """取得指定 Incident"""
         ...
 
-    async def update_incident_status(
+    async def update_status(
         self,
         incident_id: str,
-        status: str,
-    ) -> Incident | None:
-        """更新 Incident 狀態"""
+        status: Any,  # IncidentStatus enum (lewooogo-brain)
+    ) -> bool:
+        """更新 Incident 狀態 (2026-04-01 ogt: 簽名與 lewooogo-brain 對齊, ADR-046 P2-02)"""
         ...