feat(governance): normalize AI治理告警輸出與元告警解析度

apps/api/src/services/governance_agent.py

@@ -142,6 +142,13 @@ class GovernanceAgent:
                         ],
                         "sample_playbook_ids": kept_ids[:10],
                     },
+                    "drifted_count": len(drifted),
+                    "auto_deprecated_count": len(auto_deprecated_ids),
+                    "auto_deprecated_ids": auto_deprecated_ids[:10],
+                    "playbook_ids": kept_ids[:10],
+                    "total_playbooks": total,
+                    "threshold": TRUST_DRIFT_THRESHOLD,
+                    "auto_deprecate_after_days": TRUST_DRIFT_AUTO_DEPRECATE_AFTER_DAYS,
                 },
             )
 
@@ -215,6 +222,11 @@ class GovernanceAgent:
                             "安排至少 2 位 owner 對 stale條目做快速人工審核",
                         ],
                     },
+                    "stale_count": stale,
+                    "total_count": total,
+                    "stale_ratio": round(ratio, 3),
+                    "threshold": KM_STALE_RATIO,
+                    "stale_days": KM_STALE_DAYS,
                 },
             )
 
@@ -260,6 +272,27 @@ class GovernanceAgent:
             await self._alert(
                 "llm_hallucination",
                 {
+                    "status": "warning",
+                    "impact": {
+                        "failed_count": failed,
+                        "total_checked": total,
+                        "hallucination_rate": round(rate, 3),
+                        "threshold": HALLUCINATION_RATE_THRESHOLD,
+                    },
+                    "remediation": {
+                        "items": [
+                            "檢核 AI 建議來源與 evidence snapshot 一致性",
+                            "檢視最近 incident 的 verifier 輸入欄位是否缺失關鍵上下文",
+                        ],
+                        "next_action": "run_knowledge_gap_audit",
+                        "hint": "高失敗率通常表示 evidence 收斂流程退化或資料欄位解讀偏差",
+                    },
+                    "actionable": {
+                        "items": [
+                            "啟動 `playbook_evidence` 對齊補償流程",
+                            "調整 verify timeout 與降級策略，避免過度信任低品質證據",
+                        ],
+                    },
                     "failed_count": failed,
                     "total_checked": total,
                     "hallucination_rate": round(rate, 3),
@@ -304,6 +337,27 @@ class GovernanceAgent:
             await self._alert(
                 "execution_blast_radius",
                 {
+                    "status": "warning",
+                    "impact": {
+                        "failed_count": failed,
+                        "total_executions": total,
+                        "failure_rate": round(rate, 3),
+                        "threshold": EXECUTION_FAIL_RATE_THRESHOLD,
+                    },
+                    "remediation": {
+                        "items": [
+                            "鎖定失敗 playbook 清單，關閉高風險自動執行",
+                            "比對 incident evidence 與 post_execution_verification 失敗原因",
+                        ],
+                        "next_action": "pause_auto_repair_for_top_failing_playbooks",
+                        "hint": "可能是 auto_repair_playbook 與 runtime 版本/環境脫節",
+                    },
+                    "actionable": {
+                        "items": [
+                            "跑 `run_self_check` 快照與失敗 playbook 熱點報表",
+                            "必要時啟用 emergency fallback 路由進人工審核",
+                        ],
+                    },
                     "failed_count": failed,
                     "total_executions": total,
                     "failure_rate": round(rate, 3),
@@ -548,9 +602,25 @@ class GovernanceAgent:
                 await self._alert(
                     "governance_self_failure",
                     {
-                        "failed_checks": failed_checks,
-                        "total_checks": 5,  # 2026-04-27 P3.4 by Claude — 加入 slo_compliance 後共 5 項
-                        "errors": {k: results[k].get("error") for k in failed_checks},
+                        "status": "critical",
+                        "impact": {
+                            "failed_checks": failed_checks,
+                            "total_checks": 5,  # 2026-04-27 P3.4 by Claude — 加入 slo_compliance 後共 5 項
+                            "errors": {k: results[k].get("error") for k in failed_checks},
+                        },
+                        "remediation": {
+                            "items": [
+                                "暫停非關鍵治理自動化接收鏈路",
+                                "聚焦治理執行路徑錯誤並補齊 fallback",
+                            ],
+                            "next_action": "investigate_governance_pipeline_health",
+                        },
+                        "actionable": {
+                            "items": [
+                                "檢查 GovernanceAgent run loop 是否完整執行 5 個項目",
+                                "確認 DB 寫入與 Prometheus fetch 未被上游干擾",
+                            ],
+                        },
                     },
                 )
             except Exception: