v0.4.3

Clipfan 0.4.3

Fixed

• mesh-heal now heals a peer that shares only a LAN with the rest of the fleet (a peer on a different tailnet): when a host's Tailscale address is unreachable from a peer it must mesh with, mesh-heal falls back to a LAN address that peer can reach, verified by the host's SSH key (so a shared docker/bridge address can't be mistaken for the peer). Resolves the cross-tailnet known limitation noted in 0.4.0.