docs(monitoring): 更新 ArgoCD Metrics 端點文檔

- ArgoCD Server Pod 運行在 mon1 (192.168.0.121)
- 更新 Prometheus target 為 192.168.0.121:30883
- 標記配置已部署並驗證

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

k8s/argocd/DEPLOY.md

@@ -26,10 +26,11 @@ kubectl get svc -n argocd | grep nodeport
 ## 3. Prometheus 抓取端點
 
 ```
-http://192.168.0.120:30882/metrics  # Application Controller
-http://192.168.0.120:30883/metrics  # Server Metrics
+http://192.168.0.121:30883/metrics  # Server Metrics (Pod 在 mon1)
 ```
 
+> ⚠️ 注意: ArgoCD Server Pod 運行在 mon1 (121)，需使用該節點 IP
+
 ## 4. 關鍵指標
 
 | 指標 | 說明 |

k8s/monitoring/prometheus-config-additions.yaml

@@ -18,6 +18,7 @@
 # ===== 新增 scrape_configs =====
 
 # ArgoCD Metrics (需先部署 NodePort: k8s/argocd/argocd-metrics-nodeport.yaml)
+# ✅ 2026-03-29 已部署並驗證
 - job_name: argocd
   honor_timestamps: true
   scrape_interval: 30s
@@ -26,10 +27,10 @@
   scheme: http
   static_configs:
     - targets:
-        - 192.168.0.120:30883  # ArgoCD Server Metrics
+        - 192.168.0.121:30883  # ArgoCD Server Metrics (Pod 在 mon1)
       labels:
         component: server
-    # 註: Application Controller Metrics (30882) 需確認 ArgoCD 版本是否支援
+        instance: argocd-server
 
 # TLS 證書監控 (使用 Blackbox Exporter)
 - job_name: blackbox-https