Remove orphan flat default-config parquet (data/testmini-*)

Fix README: only testmini as default config (resolve multiple-default conflict)

Add manifest (metadata.json)

Upload dataset

Tighten prompt_template_source.notes: explicit 5-tier classification per 2026-06-01 priority rules

Refine prompt_template_source: cite verifiable official sources per 2026-05-30 deep audit

Populate prompt_template_source for all subsets per 2026-05-30 audit

Update metadata.json: rename subsets to match official HF config names

Restore metadata.json

Restructure: rename to match official config testmini_text_only

Restructure: rename to match official config testmini

initial commit