nx_referee_v2_test.nx

nx_referee_v2_test.nx -- the research-grounded gates catch the exact failures the literature documents. thin suite (TPR 1000 / TNR 100): accepts correct but catches almost no wrong solutions -> NOT trustworthy (mirrors CodeContests+ 4000 problems with TPR<=0.1; a single score would hide it) aggregate [ACC,ACC,WA] -> WA (first non-ACC) gaming: competitor can overwrite the oracle (SWE-Lancer assert 1==1) -> NOT gaming-proof leakage: judge in the same model family as a competitor -> NOT independent holdout: test seen in training -> NOT clean the FULL rigor gate passes only when every condition holds. Exit 0 on 8/8. license_tier: ORIGINAL