增加 golang

Dockerfile

@@ -16,6 +16,7 @@ RUN apt-get update && \
         htop \
         python3 \
         python3-pip \
+        golang \
         curl \
         wget \
         git \
@@ -53,6 +54,7 @@ RUN mkdir -p "$DEFAULT_WORKSPACE" && \
     echo "- **code-server**: Web版 VS Code" >> "$DEFAULT_WORKSPACE/README.md" && \
     echo "- **Node.js (LTS)**: 通过 nvm 管理" >> "$DEFAULT_WORKSPACE/README.md" && \
     echo "- **Python 3 & pip**" >> "$DEFAULT_WORKSPACE/README.md" && \
+    echo "- **Go (Golang)**: Go 开发环境" >> "$DEFAULT_WORKSPACE/README.md" && \
     echo "- **Git, Vim, curl, wget** 等常用命令行工具" >> "$DEFAULT_WORKSPACE/README.md" && \
     echo "" >> "$DEFAULT_WORKSPACE/README.md" && \
     echo "时区已设置为 \`Asia/Shanghai\`。" >> "$DEFAULT_WORKSPACE/README.md"