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@@ -8,52 +8,47 @@ ENV PIP_DISABLE_PIP_VERSION_CHECK=1
 ENV PYTHONDONTWRITEBYTECODE=1
 ENV PYTHONUNBUFFERED=1
 
-# 可固定 code-server 版本，提升可重复性
 ARG CODE_SERVER_VERSION=4.109.2
 
-# 1) 仅安装核心依赖（减重）
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    ca-certificates curl git bash sudo tini \
-    # Java
+    ca-certificates curl git bash sudo tini jq procps unzip \
+    # C/C++ 基础工具链 + 头文件
+    build-essential gcc g++ make cmake ninja-build gdb clang clangd \
+    libc6-dev linux-libc-dev pkg-config \
+    # Java + Node
     openjdk-17-jdk-headless maven \
-    # Node
     nodejs npm \
-    # C/C++
-    build-essential g++ gcc make cmake ninja-build gdb clang clangd \
-    # 常用工具
-    jq procps unzip \
     && rm -rf /var/lib/apt/lists/*
 
-# 2) 安装 code-server（固定版本）
+# 安装 code-server（固定版本）
 RUN curl -fsSL "https://github.com/coder/code-server/releases/download/v${CODE_SERVER_VERSION}/code-server_${CODE_SERVER_VERSION}_amd64.deb" -o /tmp/code-server.deb \
     && dpkg -i /tmp/code-server.deb \
     && rm -f /tmp/code-server.deb
 
-# 3) Python 核心依赖（减重版）
+# Python 核心依赖（精简）
 RUN pip install --no-cache-dir --upgrade pip setuptools wheel && \
     pip install --no-cache-dir \
-    numpy pandas scipy scikit-learn matplotlib seaborn plotly \
-    jupyter jupyterlab ipykernel notebook \
+    numpy pandas scipy scikit-learn matplotlib \
+    jupyterlab ipykernel notebook \
     requests httpx aiohttp pyyaml python-dotenv tqdm rich \
-    flask fastapi uvicorn[standard] pydantic \
+    fastapi uvicorn[standard] pydantic flask \
     sqlalchemy alembic psycopg2-binary redis \
-    pytest pytest-cov black isort mypy ruff pre-commit
+    pytest black isort ruff mypy
 
-# 4) Codex CLI
-RUN npm install -g @openai/codex
+# Codex CLI
+RUN npm install -g @openai/codex && npm cache clean --force
 
-# 5) 创建运行用户
+# 创建用户
 RUN useradd -m -u 1000 -s /bin/bash coder \
     && echo "coder ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers \
     && mkdir -p /home/coder/.config/code-server /home/coder/.codex \
     && chown -R coder:coder /home/coder
 
-# 6) 仅预装必要扩展（减少构建失败概率）
-RUN su - coder -c "code-server --install-extension openai.chatgpt || true" && \
-    su - coder -c "code-server --install-extension ms-python.python || true" && \
-    su - coder -c "code-server --install-extension ms-toolsai.jupyter || true" && \
-    su - coder -c "code-server --install-extension llvm-vs-code-extensions.vscode-clangd || true" && \
-    su - coder -c "code-server --install-extension redhat.java || true"
+# 快速验证 C 编译环境（构建期）
+RUN printf '#include <stdio.h>\nint main(){puts("ok");return 0;}\n' > /tmp/t.c \
+    && gcc /tmp/t.c -o /tmp/t \
+    && /tmp/t | grep -q ok \
+    && rm -f /tmp/t.c /tmp/t
 
 COPY --chown=coder:coder start.sh /usr/local/bin/start.sh
 RUN chmod +x /usr/local/bin/start.sh