以太网启用之后，多等一段时间，避免未生效

app/src/main/assets/eth.sh

@@ -105,7 +105,7 @@ echo "IP configuration before UP: $PRE_UP_IP (1=configured, 0=missing)"
 # Enable interface and wait for UP
 echo "Bringing up interface..."
 /system/bin/ip link set eth0 up
-sleep 0.2
+sleep 1
 
 # Check if IP was lost after interface UP (common issue on MTK devices)
 POST_UP_IP=$(/system/bin/ip addr show eth0 | grep -c "inet $ETH_IP")