fix(governance): clarify knowledge degradation alerts

apps/api/tests/test_failover_alerter.py

@@ -280,11 +280,17 @@ def test_governance_alert_card_formats_knowledge_degradation() -> None:
         },
     )
 
-    assert "*AI 治理警報｜知識庫劣化*" in card
+    assert "*AI 治理警報｜KM 需要更新" in card
+    assert "💬 *白話說明*" in card
+    assert "🧩 *AI 流程狀態*" in card
+    assert "✅ *現在要做*" in card
+    assert "queued\\_kb\\_healthcheck" in card
+    assert "AwoooP Work Items" in card
     assert "🧭 *影響摘要*" in card
     assert "陳舊 KM：948" in card
     assert "陳舊比例：52\\.1%" in card
     assert "▶️ 下一步：run\\_kb\\_growth\\_healthcheck" in card
+    assert "📎 *補充欄位*" not in card
     assert "欄位快覽" not in card