Initial commit: 浼佷笟寰俊 AI 鏈哄櫒浜哄姪鐞?MVP

Co-authored-by: Cursor <cursoragent@cursor.com>

deploy/docker/backend.Dockerfile

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+# 生产环境 Backend Dockerfile
+# 用途：构建优化的生产镜像
+FROM python:3.12-slim AS builder
+
+WORKDIR /app
+
+# 安装构建依赖
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    gcc \
+    && rm -rf /var/lib/apt/lists/*
+
+# 复制依赖文件
+COPY backend/requirements.txt .
+
+# 安装 Python 依赖
+RUN pip install --no-cache-dir --user -r requirements.txt
+
+# 生产镜像
+FROM python:3.12-slim
+
+WORKDIR /app
+
+# 从 builder 复制已安装的依赖
+COPY --from=builder /root/.local /root/.local
+
+# 复制应用代码
+COPY backend/ .
+
+# 设置环境变量
+ENV PYTHONPATH=/app
+ENV PATH=/root/.local/bin:$PATH
+
+# 创建非 root 用户（安全最佳实践）
+RUN useradd -m -u 1000 appuser && \
+    chown -R appuser:appuser /app
+
+USER appuser
+
+EXPOSE 8000
+
+# 健康检查
+HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
+    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/api/health')" || exit 1
+
+# 启动命令：先执行数据库迁移，再启动服务
+CMD ["sh", "-c", "alembic upgrade head && uvicorn app.main:app --host 0.0.0.0 --port 8000 --workers 2"]