fix(ci): 修復 ESLint + spectral-cli 安裝錯誤

- 移除不存在的 @typescript-eslint/no-deprecated 規則
- 修復 npm ENOTEMPTY 錯誤 (先清理舊目錄)

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

.github/workflows/ci.yaml

@@ -329,7 +329,9 @@ jobs:
 
       - name: Validate
         run: |
-          npm install -g @stoplight/spectral-cli
+          # 修復 ENOTEMPTY npm 錯誤 - 先清理舊目錄
+          rm -rf $(npm root -g)/@stoplight/spectral-cli 2>/dev/null || true
+          npm install -g @stoplight/spectral-cli || npm install -g @stoplight/spectral-cli
           spectral lint docs/api/api-contract.yaml || true
 
   # ==================== Docker Build Verify ====================