feat: 更新项目进度，完成 Phase 4 和 Phase 5，添加监控与健康检查功能

Dockerfile

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+# MineNASAI Dockerfile
+# 多阶段构建，优化镜像大小
+
+# ==================== 构建阶段 ====================
+FROM python:3.13-slim AS builder
+
+# 设置环境变量
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    PIP_NO_CACHE_DIR=1 \
+    PIP_DISABLE_PIP_VERSION_CHECK=1
+
+WORKDIR /app
+
+# 安装构建依赖
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+
+# 复制项目文件
+COPY pyproject.toml ./
+COPY src/ ./src/
+
+# 安装依赖到虚拟环境
+RUN python -m venv /opt/venv
+ENV PATH="/opt/venv/bin:$PATH"
+RUN pip install --upgrade pip && \
+    pip install .
+
+# ==================== 运行阶段 ====================
+FROM python:3.13-slim AS runtime
+
+# 安全设置 - 创建非 root 用户
+RUN groupadd --gid 1000 minenasai && \
+    useradd --uid 1000 --gid minenasai --shell /bin/bash --create-home minenasai
+
+# 设置环境变量
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1 \
+    PATH="/opt/venv/bin:$PATH" \
+    MINENASAI_ENV=production
+
+WORKDIR /app
+
+# 安装运行时依赖
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    openssh-client \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+# 从构建阶段复制虚拟环境
+COPY --from=builder /opt/venv /opt/venv
+
+# 复制应用代码
+COPY --chown=minenasai:minenasai src/ ./src/
+COPY --chown=minenasai:minenasai config/ ./config/
+
+# 创建数据目录
+RUN mkdir -p /app/data /app/logs && \
+    chown -R minenasai:minenasai /app/data /app/logs
+
+# 切换到非 root 用户
+USER minenasai
+
+# 健康检查
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD curl -f http://localhost:8000/health/live || exit 1
+
+# 暴露端口
+EXPOSE 8000 8080
+
+# 启动命令
+CMD ["python", "-m", "uvicorn", "minenasai.gateway.server:app", "--host", "0.0.0.0", "--port", "8000"]