fix: 全局安装依赖

Dockerfile

@@ -27,7 +27,7 @@ ENV PATH="/root/.local/bin:${PATH}" \
 RUN uv tool install --python 3.12 pdf2zh-next
 
 # 安装网关依赖
-RUN uv pip install --python 3.12 \
+RUN uv pip install --python 3.12 --system \
     "fastapi>=0.115" "uvicorn[standard]>=0.32" "httpx>=0.28" \
     python-multipart bcrypt itsdangerous websockets