feat: 添加Docker和部署配置

- 添加Dockerfile用于容器化部署
- 添加docker-compose.yml用于本地开发环境
- 添加build.sh构建脚本
- 添加README.md项目文档
- 添加API文档

api/Dockerfile

@@ -0,0 +1,46 @@
+# Life Echo API Dockerfile
+FROM python:3.11-slim
+
+# 设置工作目录
+WORKDIR /app
+
+# 安装系统依赖
+RUN apt-get update && apt-get install -y \
+    gcc \
+    g++ \
+    libc6-dev \
+    libffi-dev \
+    libxml2-dev \
+    libxslt1-dev \
+    libjpeg-dev \
+    zlib1g-dev \
+    libpng-dev \
+    libfreetype6-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+# 复制依赖文件
+COPY requirements.txt .
+
+# 安装Python依赖
+RUN pip install --no-cache-dir --upgrade pip && \
+    pip install --no-cache-dir -r requirements.txt
+
+# 复制应用代码
+COPY . .
+
+# 创建非root用户
+RUN useradd -m -u 1000 appuser && \
+    chown -R appuser:appuser /app
+
+# 切换到非root用户
+USER appuser
+
+# 暴露端口
+EXPOSE 8000
+
+# 健康检查
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD python -c "import requests; requests.get('http://localhost:8000/health')" || exit 1
+
+# 启动命令
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]