nx_bench_harness.nx

nx_bench_harness.nx -- the bits-up search leaderboard engine. module: nishi-core.search.bench.harness depends: fx.nx, syscalls.nx, nx_str.nx, nx_source_tier.nx, nx_bench_metrics.nx, nx_bench_intent.nx capability: CORE_COMPUTE wired_status: FULLY_WIRED WHY (operator cardinal, 2026-05-29): the search engine must S-CLASS EXCEED the incumbents -- sovereignty is never the win. This module is the measured 1:1 head-to-head that proves (or refutes) the exceed: nx_bench_score_serp -- feed ONE engine's ranked SERP + the query's qrels, get ONE NxScorecard across every proven kernel (nDCG, S-recall, Cube filled/speed, primary-source precision, canonical rate, MAP, MRR, altitude). Q16.16 throughout => byte-identical on every machine. nx_bench_nishi_rank -- re-order a SHARED document universe by the Nishi research-delivery policy (primary-source-first + facet diversity). Score "same documents, our ranking" vs "same documents, the incumbent's ranking" and the exceed is a fair, measured re-ranking result -- the retrieval set is identical, only the ordering differs. The four kernels this composes carry their own research citations + KATs; the harness adds no new math, only the wiring + a single data-driven policy.