fix(scripts): add xvfb-run detection and fallback for Linux startup

Author: linyuchen

script/start-linux.sh

@@ -3,6 +3,25 @@ SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
 chmod +x $SCRIPT_DIR/llbot/node
 chmod +x $SCRIPT_DIR/llbot/pmhq
 
+# 检测 xvfb-run 命令是否存在
+USE_XVFB=1
+if ! command -v xvfb-run &> /dev/null; then
+    echo "未找到 xvfb-run 命令"
+    echo "如果你是桌面环境，按 Y 继续运行"
+    echo "如果不是桌面环境，请先安装 xvfb，按其他键退出"
+    read -n 1 -s -r key
+    echo ""
+    if [[ "$key" == "Y" || "$key" == "y" ]]; then
+        USE_XVFB=0
+    else
+        exit 0
+    fi
+fi
+
 $SCRIPT_DIR/llbot/node $SCRIPT_DIR/llbot/llonebot.js &
 
-xvfb-run $SCRIPT_DIR/llbot/pmhq
+if [ $USE_XVFB -eq 1 ]; then
+    xvfb-run $SCRIPT_DIR/llbot/pmhq
+else
+    $SCRIPT_DIR/llbot/pmhq
+fi