Add benchmark_v2/task2_exploit_type/train.jsonl

Fix benchmark split sizes: T1 56692/2584/1990, T3 56833/2535/1898; fix T1 source description

Update citation to arXiv preprint format

Update Task 2 config to exploit_type; add known-issues section (viewer count, unsafe-scan note)

Remove strict features from dataset_info to fix viewer CastError

Anonymize datasheet for double-blind review

Anonymize maintainer in release manifest

Anonymize Croissant metadata for double-blind review

Fix stale task references in Croissant limitations

Clean up Task 2 results (remove DeBERTa error)

Update Croissant metadata to 3-task benchmark_v2 structure

Fix Task 2 split counts in meta

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Remove intermediate Task 3 CVE files

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initial commit