fix: keep bun, opencode coommand in env

vibe-dev/Dockerfile.ubuntu

@@ -12,6 +12,7 @@ ENV CARGO_HOME=/usr/local/cargo \
     RUSTUP_HOME=/usr/local/rustup \
     BUN_INSTALL="/root/.bun"
 ENV PATH="$BUN_INSTALL/bin:/usr/local/cargo/bin:${PATH}"
+RUN chsh -s /bin/zsh root
 
 # 3. 安装 Rust & Bun
 RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
@@ -25,6 +26,7 @@ RUN ssh-keygen -A && \
     mkdir -p /root/.zed /root/.local/share/zed && \
     sed -i 's/#PermitRootLogin prohibit-password/PermitRootLogin yes/' /etc/ssh/sshd_config
 
+RUN sed -i 's/#PermitUserEnvironment no/PermitUserEnvironment yes/' /etc/ssh/sshd_config
 # 6. Shell 美化
 RUN sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)" "" --unattended