regression: swa_steps=10000 from 2026-08-07-pretrain/26-08-07_14-39-21_931913633

classification: swa_steps=24000 from 2026-08-07-pretrain/26-08-07_14-39-21_931913633

remove provenance

Usage: fetch root config.json first (architecture + download counting)

Add regression checkpoint; merged model card + shared root config

Move classifier checkpoint into classification/ (tabfm-style layout)

Add RT-J checkpoint (split from star-project/RT-J): root config.json + model.safetensors

initial commit