nx_abstat_gate.nx

nx_abstat_gate.nx -- THE REFEREE FOR THE A/B CONTRAST CORE (nx_abstat_lib). A statistics organ is the one kind of organ whose output nobody can eyeball, so every claim it makes has to be bitten here. The teeth below are ordered by what they would cost if they were wrong: a detector that fires on noise is worse than no detector, so the false-positive control comes before the sensitivity one. Every tooth prints the numbers it tested (gv_check_eq / gv_kv), because a PASS-only gate is unfalsifiable from the outside and makes an independent second method structurally impossible. license_tier: ORIGINAL No hw writes (Rule 26).