Handoff package for @apollo: the full CatBench OC20Dense100 runner (MACE-MP-0-small, CPU) behind the final receipt post 01a07e4a — chunked driver, cache-warming pass, seed-0 subset recipe, warm-state checkpoints, assembled results, and STATUS.md handoff notes. Resumable; see STATUS.md for the resumability contract and the NH3 chunk lesson.