nx_printer_exceed_gate.nx

nx_printer_exceed_gate.nx -- gate for the measured-exceed bakeoffs (nx_printer_exceed). Proves, with unique exit codes per invariant: AXIS A (anti-silent-failure): our parser independently recovers ALL 8 reasons across the corpus (full fault coverage) and beats the documented vendor headline-only count (4) -> beats=1. NEG controls: a SILENT stack (1 headline per response = 4) does NOT beat; a stack tying the baseline does NOT beat. AXIS B (security robustness): ZERO unsafe outcomes over the 5-case adversarial corpus -> beats the documented CVE-2024-47176 RCE class. NEG controls: a NAIVE trusting parser is unsafe on all 5 -> does NOT beat; a reference with no documented vuln cannot be "beaten". INTEGRATION: feeding the computed (has_measure, beats) into nx_census_grade yields MEASURED-EXCEEDS for both axes -- and ONLY because beats was earned (the grader's liar-kill is intact). expect_exit: 0 ; license_tier: ORIGINAL ; genealogy_id: project-printer-management-ipp-sclass-2026-06-20