Adds explicit isIpAllowed cases for the CGNAT, ULA (fd00::/8) and IPv4-mapped
IPv6 loopback (::ffff:127.0.0.1) sample addresses from the parallel
safety-coverage branch. The mapped-loopback case is genuinely new (the existing
table only covered the mapped *private* variant); CGNAT and ULA ranges were
already covered with other samples and are kept here as explicit regression
guards for these specific addresses.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
ec128d54b4