fix build error

Author: shinonomeow

Dockerfile

@@ -40,15 +40,21 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     build-essential \
     curl \
     gcc \
+    pkg-config \
+    libssl-dev \
+    libffi-dev \
+    python3-dev \
+    && curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y \
     && rm -rf /var/lib/apt/lists/*
 
 # 创建虚拟环境并安装 Python 依赖
 WORKDIR /app
 COPY backend/requirements.txt requirements.txt
 RUN python3 -m venv ${VENV_PATH} \
-    && pip install --upgrade pip \
-    && pip install -r requirements.txt \
-    && rm -rf /root/.cache
+    && /root/.cargo/bin/rustc --version \
+    && PATH="/root/.cargo/bin:$PATH" pip install --upgrade pip \
+    && PATH="/root/.cargo/bin:$PATH" pip install -r requirements.txt \
+    && rm -rf /root/.cache /root/.cargo
 
 # 最终运行阶段
 FROM prepare_package AS final