chore: add bare timeseries tag, remove ineffective modality field

chore: fix modality field, drop modality tag, sync language

chore: translate to English, sync source metadata, add format:tsfile tag

chore: translate README to English and add format:tsfile tag

chore: normalize tsfile dataset metadata

Upload README.md with huggingface_hub

Add TsFile (converted from lerobot/pusht)

Add dataset card

Add lerobot_pusht.tsfile (converted from lerobot/pusht)

initial commit