fix(ci): replace jq with python3 for JSON parsing in Ollama test

The self-hosted runner doesn't have jq installed.
Use Python's json module as a portable alternative.

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

.github/workflows/ci.yaml

@@ -231,7 +231,8 @@ jobs:
           echo "🔗 測試 Ollama 連線..."
           if curl -s --connect-timeout 5 http://192.168.0.188:11434/api/tags > /dev/null; then
             echo "✅ Ollama 可達"
-            curl -s http://192.168.0.188:11434/api/tags | jq -r '.models[].name'
+            # 使用 Python 替代 jq (Runner 未安裝 jq)
+            curl -s http://192.168.0.188:11434/api/tags | python3 -c "import sys,json; [print(m['name']) for m in json.load(sys.stdin).get('models',[])]"
           else
             echo "⚠️ Ollama 無法連線 (192.168.0.188:11434)"
             exit 0  # 不失敗，只警告
@@ -240,11 +241,12 @@ jobs:
       - name: Model Smoke Test
         run: |
           echo "🧪 模型冒煙測試..."
+          # 使用 Python 替代 jq
           RESPONSE=$(curl -s --max-time 60 http://192.168.0.188:11434/api/generate -d '{
             "model": "qwen2.5:7b-instruct",
             "prompt": "你是 AIOps 助手。回答：1+1=?",
             "stream": false
-          }' | jq -r '.response // "ERROR"')
+          }' | python3 -c "import sys,json; d=json.load(sys.stdin); print(d.get('response','ERROR'))" 2>/dev/null || echo "ERROR")
 
           if [ "$RESPONSE" != "ERROR" ] && [ -n "$RESPONSE" ]; then
             echo "✅ 模型回應正常"