fix: correct field positions for IP and OS in check_nodes.sh

cluster/check_nodes.sh

@@ -42,8 +42,8 @@ echo "$NODES" | while IFS= read -r line; do
   STATUS=$(echo "$line" | awk '{print $2}')
   ROLES=$(echo "$line" | awk '{print $3}')
   INTERNAL_IP=$(echo "$line" | awk '{print $6}')
-  OS=$(echo "$line" | awk '{print $7}')
-  KERNEL=$(echo "$line" | awk '{print $8}')
+  OS_IMAGE=$(echo "$line" | awk '{print $8}')
+  KERNEL=$(echo "$line" | awk '{print $9}')
 
   # 顏色判斷
   if [[ "$STATUS" == "Ready"* ]]; then
@@ -67,7 +67,7 @@ echo "$NODES" | while IFS= read -r line; do
   echo -e "${STATUS_COLOR}$ICON $NAME${NC} $ROLE"
   echo "   狀態: $STATUS"
   echo "   IP:   $INTERNAL_IP"
-  echo "   OS:   $OS $KERNEL"
+  echo "   OS:   $OS_IMAGE $KERNEL"
   echo ""
 done