fix: REAL T3-3L three-way expert split (MQ6/MQ4/MQ3L) — prior upload was plain mq4 (stale binary lacked TIER_MAP)

fix: proper T3-2L three-way expert split (MQ6/MQ4/MQ2L), 19.67GB (was 22.86 bloat)

registry: trunk quant (v3-awq-f1 / a3b-graded)

initial commit