eval results: fix mean arithmetic (76.36 = average of the five dimensions)

eval results: layout dimension per maintainer re-measurement with label-mapping fix (78.84)

eval results: layout dimension on layout_element_rule_pass_rate (official metric)

eval results: align to standalone reproduction provider (77.48 full-set single pass)

KDL-Frontier-Parser-nano: weights + model card + ParseBench eval results (76.48 full-set single-pass)