diff --git a/apps/api/src/api/v1/webhooks.py b/apps/api/src/api/v1/webhooks.py
index 269536ce..ac13671d 100644
--- a/apps/api/src/api/v1/webhooks.py
+++ b/apps/api/src/api/v1/webhooks.py
@@ -343,6 +343,8 @@ async def _push_to_telegram_background(
     auto_tuning_command: str = "",
     # 2026-04-02 ogt: 修復 ai_provider 未傳遞 → Telegram 顯示「AI 仲裁判定」而非具體模型名稱
     ai_provider: str = "",
+    # 2026-04-08 ogt: 補傳 incident_id 以啟用詳情/重診/歷史按鈕
+    incident_id: str = "",
 ) -> None:
     """
     背景任務: 推送待簽核卡片到 Telegram (v7.0 含 SignOz 整合)
@@ -392,6 +394,7 @@ async def _push_to_telegram_background(
             ai_tokens=ai_tokens,
             ai_cost=ai_cost,
             ai_provider=ai_provider,
+            incident_id=incident_id,
         )
 
         logger.info(
@@ -967,6 +970,8 @@ async def receive_alert(
             ai_tokens=ai_tokens,
             ai_cost=ai_cost,
             ai_provider=ai_provider,
+            # 2026-04-08 ogt: 補傳 incident_id 以啟用詳情/重診/歷史按鈕
+            incident_id="",  # /alerts 路徑尚無 incident，detail/reanalyze/history 按鈕不顯示
         )
 
         return AlertResponse(
@@ -1407,6 +1412,8 @@ async def alertmanager_webhook(
                 ai_tokens=ai_tokens,
                 ai_cost=ai_cost,
                 ai_provider=ai_provider,
+                # 2026-04-08 ogt: 補傳 incident_id 以啟用詳情/重診/歷史按鈕
+                incident_id=incident_id,
             )
 
             record_alert_chain_success("alertmanager")
@@ -1445,7 +1452,7 @@ async def alertmanager_webhook(
             # ================================================================
             # Incident-Approval 同步 (鐵律: 即使 LLM 失敗也必須創建)
             # ================================================================
-            await create_incident_for_approval(
+            fallback_incident_id = await create_incident_for_approval(
                 approval_id=str(approval.id),
                 risk_level="medium",
                 target_resource=target_resource,
@@ -1467,6 +1474,7 @@ async def alertmanager_webhook(
                 primary_responsibility="HUMAN",
                 confidence=0.0,
                 namespace=namespace,
+                incident_id=fallback_incident_id,
             )
 
             return AlertResponse(