Constraints are detected up front (one throwaway bind per network) and land
in run.constraints, a measurement.vpn_constrained finding, the $7.3 verdict
(INCONCLUSIVE outright) and a banner on the run screen - a VPN'd run looked
exactly like a clean run of a healthy network before this.
v6.broken returns to the registry now that it can be earned: V6ConnectProbe
(v6.brokenness) makes a real TCP connection over IPv6 to the enrolled
server, and only both transports failing on a network that advertises IPv6
justifies the claim. TCP succeeding turns the finding into 'ICMPv6 is
filtered, IPv6 works' at high confidence instead.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
