For Minegishi: training documentation, reproducibility files and line plots 3/4

For Minegishi: training documentation, reproducibility files and line plots 2/4

For Minegishi: training documentation, reproducibility files and line plots 1/4

data/chain_loop (k = 1 default data dir) and README section on resuming

Resume states (last.pt with optimizer and stream state) of the runs that were queued at the 2026-09-25 maintenance stop, plus the five data directories

add rl-mda-step100

add rl-mda-step50

add rl-mda-step5

add rl-r1b-step100

add sft-matched-grouped-s1

add sft-matched-isolated-s1

add sft-c4b-s1

add sft-c4-s1

add stage15b-init

add rl-r1a-step100

add rl-mdb-step100

add sft-d1-s1

add sft-c1-s1

add sft-v1-s1

add sft-eco-s1

initial commit