Update test to load from HF Hub

Document invariants and add test instructions

Add invariant tests

Upload dataset

Add comprehensive documentation with hash field explanation

Upload dataset

Force schema index refresh

Upload dataset

Upload dataset

Update README with schema documentation

Update README.md

Clean up

Trigger index refresh

Delete data.jsonl with huggingface_hub

Upload data/train-00000.parquet with huggingface_hub

Delete folder data with huggingface_hub

Upload dataset

Upload folder using huggingface_hub

initial commit