nx_biotwin_board_gate.nx

nx_biotwin_board_gate.nx -- the LIAR-KILL gate for nx_biotwin_board. A board that grades a MEDICAL domain is worse than useless if it can rubber-stamp itself, because the failure mode is not an embarrassing number -- it is a credibility claim attached to a human body. Teeth: T1 PROVENANCE -- the COU-0 verdicts must be COPIED FROM A REAL SIBLING ORGAN, not invented. nx_graphics_board.nx must exist AND must itself carry the axes/artifacts we cite from it. This is the anti-fabrication tooth: it makes it impossible to grade ourselves against a made-up baseline. T2 EVIDENCE EXISTS -- every artifact attached to a HAVE/PARTIAL is stat'd on disk. A verdict with a missing artifact is a lie. T3 NEG-CONTROL -- a fabricated artifact path must NOT exist, or T2 could pass by accident. T4 THE FENCE IS ALIVE -- the clamp, the fence tiers, and the PLANTED LIE on axis 21 must all still be in the source. Delete any one and the safety property silently becomes a promise instead of a construction, which is exactly what rule 26 forbids. T5 HONESTY CANNOT ROT -- the deflation, the terminal science blocker, and the law-collision block must still be published. If a later edit quietly deletes them so the numbers read like a green light, this gate goes RED. T6 NO SILENT SCOPE CREEP -- all three COU-4 actuation axes must still be present AND hard-fenced. license_tier: ORIGINAL expect_exit: 0