round-10: physics-factorial + direct-2048 chain (scripts/evaluate_frozen_benchmarks.py)

round-7 follow-through: disjoint_256 arm (scripts/evaluate_frozen_benchmarks.py)

round-7: morgan_2048_rp parity arm (scripts/evaluate_frozen_benchmarks.py)

review-response: upload scripts/evaluate_frozen_benchmarks.py

feat: evaluators support pom_alltags arm (objective_dim-aware, prospective N/A for 575-dim)

feat: preregistered frozen-benchmark evaluator (substitution triplets + prospective)