Lab topology change for the WiFi AP: the onboard Ethernet port is the
WAN (netifd dhcp, metric 10), served by archy-dev-pa's NetworkManager
shared connection (Pi at 10.42.0.2); the WiFi client uplink stays as
wwan (metric 20) in the wan zone; br-lan keeps 192.168.10.1 with no
wired port (bridge_empty) until the AP joins it. Seeds and rpi4.scm
updated; the live Pi was changed with uci over the WiFi path first.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
