fix(flywheel): 修補飛輪四個核心斷點，讓完整流程真正串接起來

1. incident_service.py: save_to_episodic_memory() 補寫 alertname/notification_type/alert_category
   → 之前這3欄在DB永遠NULL，LLM無alertname，Playbook匹配全失敗

2. telegram_gateway.py: Telegram批准後呼叫 execute_approved_action()
   → 之前sign_approval()只改DB狀態，380筆批准0筆真正執行kubectl指令

3. approval_execution.py: 執行成功後呼叫 resolve_incident()
   webhooks.py: auto-repair成功後呼叫 resolve_incident()
   → 之前Incident永遠停在INVESTIGATING，KM轉換永遠不觸發，Playbook=0

4. webhooks.py: TYPE-1告警短路，不進LLM
   → 之前Heartbeat/Backup/Info仍燒LLM token，產生垃圾修復建議

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

apps/api/src/services/approval_execution.py

@@ -171,6 +171,21 @@ class ApprovalExecutionService:
             except Exception as _disp_e:
                 logger.warning("disposition_record_failed", error=str(_disp_e))
 
+            # ADR-073 修補: 執行成功 → 解決 Incident → 觸發 KM 轉換
+            # 之前 RESOLVED 從未被呼叫，導致 KM 永遠不生成、Playbook 永遠是 0
+            if approval.incident_id:
+                try:
+                    from src.services.incident_service import get_incident_service
+                    _inc_svc = get_incident_service()
+                    await _inc_svc.resolve_incident(approval.incident_id)
+                    logger.info(
+                        "incident_resolved_after_execution",
+                        incident_id=approval.incident_id,
+                        approval_id=str(approval.id),
+                    )
+                except Exception as _resolve_e:
+                    logger.warning("incident_resolve_after_execution_failed", error=str(_resolve_e))
+
         else:
             logger.error(
                 "background_execution_failed",

apps/api/src/services/incident_service.py

@@ -457,6 +457,13 @@ class IncidentService:
             async with get_db_context() as db:
                 # 轉換為 SQLAlchemy model
                 # 使用 model_dump(mode="json") 確保 datetime 正確序列化
+                # 從 signals 提取 alertname（ADR-073 Phase 2: incidents.alertname 欄位）
+                _alertname = (
+                    incident.signals[0].labels.get("alertname")
+                    or incident.signals[0].alert_name
+                    if incident.signals
+                    else None
+                )
                 record = IncidentRecord(
                     incident_id=incident.incident_id,
                     status=incident.status.value,
@@ -482,6 +489,10 @@ class IncidentService:
                     closed_at=incident.closed_at,
                     ttl_days=incident.ttl_days,
                     vectorized=incident.vectorized,
+                    # ADR-073 Phase 2-2: 三個分類欄位（之前遺漏未寫入 DB）
+                    alertname=_alertname,
+                    notification_type=incident.notification_type,
+                    alert_category=incident.alert_category,
                 )
 
                 db.add(record)

apps/api/src/services/telegram_gateway.py

@@ -4577,6 +4577,17 @@ class TelegramGateway:
                         username=username,
                         execution_triggered=execution_triggered,
                     )
+                    # ADR-073 修補: 觸發實際執行 (之前 sign_approval 只更新 DB 狀態，指令從未執行)
+                    # execution_triggered=True 代表簽名數已達 required_signatures
+                    if execution_triggered:
+                        import asyncio
+                        from src.services.approval_execution import get_execution_service
+                        asyncio.create_task(get_execution_service().execute_approved_action(approval))
+                        logger.info(
+                            "telegram_approval_execution_triggered",
+                            approval_id=approval_id,
+                            action=approval.action,
+                        )
 
             elif action == "reject":
                 approval, message = await service.reject_approval(