Add Go support to dev containers and Makefile

vibe-dev/Dockerfile.ubuntu

@@ -10,13 +10,17 @@ RUN dnf update -y && dnf install -y \
 # 2. 环境变量
 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}"
+    BUN_INSTALL="/root/.bun" \
+    GOPATH="/root/go"
+ENV PATH="$BUN_INSTALL/bin:/usr/local/cargo/bin:/usr/local/go/bin:$GOPATH/bin:${PATH}"
 RUN chsh -s /bin/zsh root
 
-# 3. 安装 Rust & Bun
+# 3. 安装 Rust & Bun & Go
 RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
 RUN curl -fsSL https://bun.sh/install | bash
+RUN curl -fsSL https://go.dev/dl/go1.24.4.linux-amd64.tar.gz | tar -C /usr/local -xzf - \
+    && go install golang.org/x/tools/gopls@latest \
+    && go install github.com/go-delve/delve/cmd/dlv@latest
 
 # 4. 全局安装 AI 工具
 RUN bun install -g opencode-ai