fix(cd): Use Python httpx for health check instead of curl

- Container uses python:3.11-slim without curl
- httpx is already installed as API dependency
- Fixes: "curl: executable file not found in $PATH"

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

.github/workflows/cd.yaml

@@ -236,8 +236,8 @@ jobs:
         run: |
           sleep 15
           API_POD=$(kubectl get pods -n awoooi-prod -l app=awoooi-api -o jsonpath='{.items[0].metadata.name}')
-          # 指定容器名稱避免 "container not found" 錯誤
-          kubectl exec -n awoooi-prod $API_POD -c api -- curl -sf http://localhost:8000/api/v1/health || echo "Health check failed but deployment succeeded"
+          # 使用 Python httpx (容器沒有 curl，但有 httpx)
+          kubectl exec -n awoooi-prod $API_POD -c api -- python -c "import httpx; r=httpx.get('http://localhost:8000/api/v1/health', timeout=5); print(r.status_code)" || echo "Health check failed but deployment succeeded"
 
       - name: Notify OpenClaw
         if: always()