README: align schema table with metadata.csv; drop stale claims; link Croissant

README: remove Dataset Summary (abstract)

README: update title to 'A Scaling Recipe for Generative World Renderer'

README: remove Data Curation Pipeline section

README: remove Croissant Metadata, Citation, and Contact sections

Update README.md

README + Croissant: describe full ~4M-frame dataset (sample remains 40 clips for review)

Drop ambient_occlusion channel; align cyberpunk2077 with wukong (6 channels each).

Add files using upload-large-folder tool