Add standard MIT LICENSE (curation only; original data retains provider terms)

Add original-data citation and soften self-citation wording

docs: primary paper arXiv:2604.07329 (SUMI / OpenVAE)

docs: dataset viewer + configs

fix(dataset viewer): Parquet train index + README config; remove invalid metadata.csv

docs: OpenVAE/SMILE links + paper citation (arXiv:2512.07251)

Upload folder using huggingface_hub

initial commit