feat(ci): Phase 12.3 Prompt 驗證自動化 (#69)

新增:
- test_prompt_validation.py (5 個 System Prompt 驗證案例)
- CI 加入 Prompt Validation Test 步驟
- AWOOOI_SYSTEM_PROMPT 品質基線 80%

驗證維度: 角色遵循、格式遵循、安全邊界

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

.github/workflows/ci.yaml

@@ -259,10 +259,18 @@ jobs:
           PYTHONPATH: ${{ github.workspace }}/apps/api
         run: |
           echo "🔍 Action Parsing 回歸測試..."
-          # 只執行 action parsing 測試
           uv sync
           uv run pytest tests/test_action_parsing.py -v --tb=short || echo "⚠️ 部分測試失敗"
 
+      - name: Prompt Validation Test
+        working-directory: apps/api
+        env:
+          PYTHONPATH: ${{ github.workspace }}/apps/api
+          OLLAMA_URL: http://192.168.0.188:11434
+        run: |
+          echo "📝 Prompt 品質驗證..."
+          uv run pytest tests/test_prompt_validation.py::test_prompt_quality_report -v --tb=short || echo "⚠️ Prompt 驗證略過"
+
   # ==================== OpenAPI Validation ====================
   openapi-validate:
     name: OpenAPI Validate