test_wg_connect_and_ping_server and the connected_peer fixture hardcoded
10.0.0.1 / 10.0.0.0/24 as the server VPN address. This breaks when the
server uses a different subnet (e.g. pic1 uses 10.0.1.1/24). Now both
read 'address' from /api/wireguard/status at session start and pass the
live server_ip / server_network through wg_server_info and connected_peer.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>