fix: 修復由於錯誤的下載目錄導致啓動失敗

Dockerfile

@@ -39,7 +39,7 @@ COPY --from=builder --chown=appuser:appuser /app/.venv /app/.venv
 # 下載模型
 RUN python -c "from huggingface_hub import snapshot_download; \
     snapshot_download(repo_id='ynyg/Unified_Prompt_Guard', \
-    local_dir='/app/models', \
+    local_dir='/app/models/Unified_Prompt_Guard', \
     ignore_patterns=['*.ckpt', '*.pth', '*.git*'])"
 
 # 複製應用代碼 (建議先複製代碼再啟動)