Datasets:
Expose layer_roofline as loadable dataset config
Adds a paper-facing layer_roofline config backed by layer_roofline/summary.parquet while keeping raw per_layer_oi_cf artifacts as provenance.\n\nConstraint: Hugging Face dataset configs need a stable tabular schema, so raw mixed JSON/CSV/PDF/NCU artifacts are exposed through one parquet summary table.\nRejected: Using per_layer_oi_cf as the public config name | it is an internal abbreviation and not clear as a dataset subset.\nConfidence: high\nScope-risk: narrow\nDirective: Keep raw profiler artifacts under per_layer_oi_cf/ and loadable dataset views under layer_roofline/.\nTested: Parsed README YAML; verified five configs; verified layer_roofline parquet shape and record_type counts; confirmed no num_rows or stale distributional path.\nNot-tested: Did not run Hugging Face worker conversion locally because datasets is not installed here.
refs/pr/7 ref