添加Docker部署方案

- 多阶段Dockerfile：第一阶段构建前端(npm)，第二阶段Python运行时(uv+opencv)
- docker-compose.yml：单服务，data/logs目录挂载持久化
- deploy.sh一键部署脚本：自动构建+启动+健康检查
- .dockerignore排除不必要文件减小构建上下文
- main.py添加前端静态文件服务(生产环境单端口部署)
- README更新部署文档和代理配置说明

Dockerfile

@@ -0,0 +1,52 @@
+# ===== 阶段1: 构建前端 =====
+FROM node:20-slim AS frontend-builder
+
+WORKDIR /build
+COPY web/frontend/package.json web/frontend/package-lock.json* ./
+RUN npm ci || npm install
+COPY web/frontend/ ./
+RUN npm run build
+
+# ===== 阶段2: Python 运行时 =====
+FROM python:3.12-slim AS runtime
+
+# 安装 OpenCV 系统依赖
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libgl1 \
+    libglib2.0-0 \
+    && rm -rf /var/lib/apt/lists/*
+
+# 安装 uv 用于快速安装依赖
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/uv
+
+WORKDIR /app
+
+# 先复制依赖文件，利用 Docker 缓存层
+COPY pyproject.toml uv.lock* ./
+RUN uv venv /app/.venv && uv pip install -e .
+
+# 复制项目代码
+COPY core/ ./core/
+COPY utils/ ./utils/
+COPY web/backend/ ./web/backend/
+COPY README.md ./
+
+# 复制前端构建产物
+COPY --from=frontend-builder /build/dist ./web/frontend/dist
+
+# 创建数据和日志目录
+RUN mkdir -p /app/data /app/logs
+
+# 环境变量
+ENV PYTHONUNBUFFERED=1
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PATH="/app/.venv/bin:$PATH"
+
+EXPOSE 8000
+
+# 健康检查
+HEALTHCHECK --interval=30s --timeout=5s --retries=3 \
+    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/api/health')" || exit 1
+
+# 启动命令
+CMD ["python", "-m", "uvicorn", "web.backend.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "1"]