OpenNeuro Get Snapshot Files

List the files in a specific version (snapshot) of an OpenNeuro dataset, with direct keyless download URLs for each file. Unlike OpenNeuro_get_dataset (which returns only metadata), this returns the actual file manifest needed to retrieve the imaging data: filename, size in bytes, directory flag, and one or more object download URLs. Requires the dataset ID and a snapshot tag (get available tags from OpenNeuro_get_dataset_snapshots).