Append batch data_e79ff04a (848 rows across 9 splits)

Append batch data_c46859e8 (19 rows across 3 splits)

Append batch data_cdd785cd (244 rows across 3 splits)

Append batch data_efc70a6f (1755 rows across 9 splits)

Append batch data_f420840c (412 rows across 9 splits)

Update card: raw layout removed, document provenance columns

Drop stale dataset_info (schema now includes provenance columns)

Rename parquet folders to data_<uid> scheme (data -> data_db491557, data_append_20260712 -> data_f7ef3bb0)

Fix duplicate split declarations

Use appended Parquet shards in default config

Append Parquet rows 0306+

Sync local samples and index

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