build: refactor: container setup and development environment configuration

- Switch base Docker image from `mcr.microsoft.com/devcontainers/base:ubuntu` to `ubuntu:22.04` and remove Nix-related setup.
- Add user creation logic to the Dockerfile, including sudo configuration and path mapping for host user directories.
- Expand the list of installed utilities in the Dockerfile, adding `ripgrep`, `fd-find`, `tree`, `jq`, `wget`, `git`, `ca-certificates`, `gnupg`, and `nodejs`.
- Incorporate `uv` package manager installation and `Claude Code` setup into the Dockerfile.
- Configure `devcontainer.json` to pass the host user as an argument.
- Add mount configurations for SSH keys, Git, Claude Code, and Downloads directories.
- Configure `devcontainer.json` to use host network, set `TERM` environment variable, and specify VSCode extensions for Python, ESlint, and Prettier.
- Remove the `post-create.sh` script.

Author: NanoBoom

.devcontainer/Dockerfile

@@ -1,29 +1,85 @@
-FROM mcr.microsoft.com/devcontainers/base:ubuntu
+FROM ubuntu:22.04
 
-# Install Nix
+# 避免交互式提示
+ENV DEBIAN_FRONTEND=noninteractive
+ENV TZ=Asia/Shanghai
+
+# ============================================================================
+# ARG 声明区域：集中管理所有构建参数
+# ============================================================================
+ARG USERNAME=node
+ARG USER_UID=1000
+ARG USER_GID=1000
+ARG HOST_USER
+
+# ============================================================================
+# 用户创建：Ubuntu 无预置 node 用户，需手动创建
+# ============================================================================
+RUN \
+    # 创建开发用户组和用户
+    groupadd --gid ${USER_GID} ${USERNAME} \
+    && useradd --uid ${USER_UID} --gid ${USER_GID} --shell /bin/bash --create-home ${USERNAME} \
+    # 安装 sudo 并配置权限
+    && apt-get update \
+    && apt-get install -y sudo \
+    && echo "${USERNAME} ALL=(ALL) NOPASSWD:ALL" > /etc/sudoers.d/${USERNAME} \
+    && chmod 0440 /etc/sudoers.d/${USERNAME} \
+    && rm -rf /var/lib/apt/lists/* \
+    # 路径映射：解决 macOS 配置文件中的绝对路径问题
+    # Claude Code 等工具的配置文件可能包含宿主机绝对路径
+    # 通过软链接让容器内可以解析 /Users/$HOST_USER 和 /home/$HOST_USER
+    && ([ -z "${HOST_USER}" ] || \
+        (mkdir -p /home /Users && \
+         ln -snf /home/${USERNAME} /home/${HOST_USER} && \
+         ln -snf /home/${USERNAME} /Users/${HOST_USER}))
+
+# ============================================================================
+# 基础工具安装：命令行工具和开发依赖
+# ============================================================================
 RUN apt-get update && apt-get install -y \
-  curl \
-  xz-utils \
-  sudo \
-  && rm -rf /var/lib/apt/lists/*
-
-# Create vscode user if it doesn't exist
-RUN if ! id -u vscode > /dev/null 2>&1; then \
-  useradd -m -s /bin/bash vscode && \
-  echo "vscode ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers; \
-  fi
-
-# Switch to vscode user for Nix installation
-USER vscode
-WORKDIR /home/vscode
-
-# Install Nix in single-user mode
-RUN curl -L https://nixos.org/nix/install | sh -s -- --no-daemon
-
-# Add Nix to PATH and configure for the shell
-RUN echo '. /home/vscode/.nix-profile/etc/profile.d/nix.sh' >> /home/vscode/.bashrc && \
-  mkdir -p /home/vscode/.config/nix && \
-  echo 'experimental-features = nix-command flakes' >> /home/vscode/.config/nix/nix.conf
-
-# Keep container running
-CMD ["sleep", "infinity"]
+    # 命令行工具
+    ripgrep \
+    fd-find \
+    tree \
+    jq \
+    curl \
+    wget \
+    git \
+    ca-certificates \
+    gnupg \
+    && mkdir -p /etc/apt/keyrings \
+    && curl -fsSL https://deb.nodesource.com/gpgkey/nodesource-repo.gpg.key | gpg --dearmor -o /etc/apt/keyrings/nodesource.gpg \
+    && echo "deb [signed-by=/etc/apt/keyrings/nodesource.gpg] https://deb.nodesource.com/node_20.x nodistro main" | tee /etc/apt/sources.list.d/nodesource.list \
+    && apt-get update \
+    && apt-get install -y nodejs \
+    # 彻底清理 APT 缓存、临时文件和文档
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* /usr/share/doc/* /usr/share/man/*
+
+# ============================================================================
+# Python：使用 uv 安装器（全局单次安装）
+# ============================================================================
+RUN curl -LsSf https://astral.sh/uv/install.sh | sh \
+    && mv /root/.local/bin/uv* /usr/local/bin/ \
+    && rm -rf /root/.local /root/.cargo /root/.rustup
+ENV PATH="/usr/local/bin:${PATH}"
+
+# ============================================================================
+# Claude Code 安装
+# ============================================================================
+RUN npm install -g \
+    @anthropic-ai/claude-code \
+    # 清理 npm 缓存和文档
+    && npm cache clean --force \
+    && rm -rf ~/.npm
+
+# ============================================================================
+# 环境变量配置
+# ============================================================================
+
+# 工作目录
+WORKDIR /workspace
+RUN chown ${USERNAME}:${USERNAME} /workspace
+
+# 切换到开发用户
+USER ${USERNAME}

.devcontainer/devcontainer.json

@@ -1,19 +1,55 @@
 {
-  "name": "claudecode.nvim Development",
+  "name": "nanodev-claude-code",
   "build": {
-    "dockerfile": "Dockerfile"
+    "dockerfile": "Dockerfile",
+    "args": {
+      "HOST_USER": "${localEnv:USER}"
+    }
   },
-  "features": {
-    "ghcr.io/devcontainers/features/git:1": {}
+
+  // 挂载配置：直接映射用户配置文件
+  "mounts": [
+    // SSH 密钥和配置（只读，安全第一）
+    "source=${localEnv:HOME}/.ssh,target=/home/node/.ssh,type=bind,readonly",
+
+    // Git 配置（可写，需要在容器内提交）
+    "source=${localEnv:HOME}/.gitconfig,target=/home/node/.gitconfig,type=bind",
+
+    // Claude Code 配置（路径映射解决 macOS 绝对路径问题）
+    "source=${localEnv:HOME}/.claude,target=/home/node/.claude,type=bind",
+
+    // 下载目录
+    "source=${localEnv:HOME}/Downloads,target=/home/node/Downloads,type=bind"
+  ],
+
+  // 容器运行时设置
+  "runArgs": [
+    // 使用主机网络：容器和主机共享网络栈
+    "--network=host"
+  ],
+
+  // 环境变量
+  "containerEnv": {
+    "TERM": "xterm-256color"
   },
+
+  // 容器启动后执行的命令（可选：安装额外工具）
+  "postCreateCommand": "sudo npm install -g @anthropic-ai/claude-code",
+
+  // VS Code 扩展（推荐的开发工具扩展）
   "customizations": {
     "vscode": {
+      "extensions": [
+        "ms-python.python",
+        "dbaeumer.vscode-eslint",
+        "esbenp.prettier-vscode"
+      ],
       "settings": {
         "terminal.integrated.defaultProfile.linux": "bash"
-      },
-      "extensions": ["jnoortheen.nix-ide"]
+      }
     }
   },
-  "postCreateCommand": "bash .devcontainer/post-create.sh",
-  "remoteUser": "vscode"
+
+  // 使用开发用户（与宿主机 UID/GID 匹配）
+  "remoteUser": "node"
 }