fix: 安装 Bun 前检测 unzip 依赖

setup.sh

@@ -92,6 +92,18 @@ install_bun() {
     warning "未检测到 Node.js 或 Bun"
     info "推荐安装 Bun（轻量级 JavaScript 运行时）"
     echo ""
+
+    # 检测 unzip 依赖
+    if ! command_exists unzip; then
+        error "安装 Bun 需要 unzip，请先安装："
+        echo ""
+        echo -e "  Ubuntu/Debian: ${CYAN}sudo apt-get install unzip${NC}"
+        echo -e "  Alpine:        ${CYAN}apk add unzip${NC}"
+        echo -e "  CentOS/RHEL:   ${CYAN}sudo yum install unzip${NC}"
+        echo ""
+        return 1
+    fi
+
     echo -e "  安装命令: ${CYAN}curl -fsSL https://bun.sh/install | bash${NC}"
     echo ""