Gather addresses and routes from running instances in the GUI for
VpnService. Attach its single fd to the core shared TUN and refresh
the VPN when instance configuration changes.
Keep the FFI set_tun_fd call scoped to one instance and report
attachment errors. Cover mobile configuration and reconciliation
in GUI tests.
add an Android Quick Settings tile for starting and stopping EasyTier VPN networks
persist tile actions until the Tauri frontend is ready, so cold-start clicks are not lost
add the standard Quick Settings preferences activity alias so long-pressing the tile opens EasyTier
keep network and VPN lifecycle ownership in the existing frontend reconciliation flow
KKRainbow