Update Dockerfile

Dockerfile

@@ -11,9 +11,14 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     build-essential \
     && rm -rf /var/lib/apt/lists/*
 
-# 安装 Python 依赖
+# 用 venv 安装 Python 依赖，绕过 PEP 668
 COPY requirements.txt /tmp/requirements.txt
-RUN pip3 install --no-cache-dir -r /tmp/requirements.txt
+RUN python3 -m venv /opt/venv && \
+    /opt/venv/bin/pip install --no-cache-dir --upgrade pip && \
+    /opt/venv/bin/pip install --no-cache-dir -r /tmp/requirements.txt
+
+# 让 uvicorn 等命令默认走 venv
+ENV PATH="/opt/venv/bin:$PATH"
 
 # 创建目录
 RUN mkdir -p /home/coder/workspace /app/static /usr/share/nginx/html