sft_bica: use the canonical validation split name so the subset resolves

Expose the folders as dataset subsets (configs) so they load and preview individually

Update README.md

kd_7src/train: replace zero placeholder with the real jina-reranker-v3.5 teacher scores

Update README.md

Update README.md

Update README.md

Update README.md

Update README.md

Document SFT and seven-source KD contents

Add dataset card

Upload Jina listwise teacher scores

Upload seven-source KD mixture

Upload prepared BiCA SFT data

initial commit