- Add iptables package in Dockerfile alongside iptables-legacy for compatibility.
- Remove redundant `-m tcp` from iptables commands in set_gateway.sh since `-p tcp` already implies the TCP module when using `--dport`.
- Install iptables-legacy package in Dockerfile to support iptables rules
- Add temporary iptables rules in set_gateway.sh to redirect HTTP/HTTPS traffic from wg0 to 172.18.103.2
- These rules are temporary and should be removed after service-exec go update
