force text modality, drop usage section, remove self source_datasets, style cleanup

Fix H1 (remove v2 suffix) and update load_dataset paths/changelog to current repo name

docs: refresh dataset card for v2 (ruri-v3 retriever + reranker)

upload n-tuples-1m shard train-00001-of-00002.parquet

upload n-tuples-1m shard train-00000-of-00002.parquet

upload n-tuples-500k shard train-00000-of-00001.parquet

upload n-tuples-250k shard train-00000-of-00001.parquet

upload n-tuples-100k shard train-00000-of-00001.parquet

upload n-tuples shard train-00004-of-00005.parquet

upload n-tuples shard train-00003-of-00005.parquet

upload n-tuples shard train-00002-of-00005.parquet

upload n-tuples shard train-00001-of-00005.parquet

upload n-tuples shard train-00000-of-00005.parquet

upload triplets shard train-00004-of-00005.parquet

upload triplets shard train-00003-of-00005.parquet

upload triplets shard train-00002-of-00005.parquet

upload triplets shard train-00001-of-00005.parquet

upload triplets shard train-00000-of-00005.parquet

copy pairs/train-00002-of-00003.parquet from mahiyama/auto-wiki-qa

copy pairs/train-00001-of-00003.parquet from mahiyama/auto-wiki-qa

copy pairs/train-00000-of-00003.parquet from mahiyama/auto-wiki-qa

cleanup: drop n-tuples-10k-preview before final upload

preview v3 (single MIN_DIFF=4.0): 10k rows (done=1500000/2376503, kept=1357213)

Delete folder n-tuples-10k-preview with huggingface_hub

cleanup: drop n-tuples-1m-preview (MIN_DIFF=2.0 stale preview)

cleanup: drop n-tuples-500k-preview (MIN_DIFF=2.0 stale preview)

cleanup: drop n-tuples-250k-preview (MIN_DIFF=2.0 stale preview)

cleanup: drop n-tuples-100k-preview (MIN_DIFF=2.0 stale preview)

cleanup: drop n-tuples-preview (MIN_DIFF=2.0 stale preview)

cleanup: drop triplets-preview (MIN_DIFF=2.0 stale preview)

preview v2-strict (MIN_DIFF=4.0): upload 10k rows (done=1350000/2376503, kept=1217730)

preview-v2 (Y-plan): upload n-tuples-1m-preview shard train-00001-of-00002.parquet (partial 1350000/2376503 reranked, kept 1225815)

preview-v2 (Y-plan): upload n-tuples-1m-preview shard train-00000-of-00002.parquet (partial 1350000/2376503 reranked, kept 1225815)

Delete folder n-tuples-1m-preview with huggingface_hub

preview-v2 (Y-plan): upload n-tuples-500k-preview shard train-00000-of-00001.parquet (partial 1350000/2376503 reranked, kept 1225815)

Delete folder n-tuples-500k-preview with huggingface_hub

preview-v2 (Y-plan): upload n-tuples-250k-preview shard train-00000-of-00001.parquet (partial 1350000/2376503 reranked, kept 1225815)

Delete folder n-tuples-250k-preview with huggingface_hub

preview-v2 (Y-plan): upload n-tuples-100k-preview shard train-00000-of-00001.parquet (partial 1350000/2376503 reranked, kept 1225815)

Delete folder n-tuples-100k-preview with huggingface_hub

preview-v2 (Y-plan): upload n-tuples-preview shard train-00002-of-00003.parquet (partial 1350000/2376503 reranked, kept 1225815)

preview-v2 (Y-plan): upload n-tuples-preview shard train-00001-of-00003.parquet (partial 1350000/2376503 reranked, kept 1225815)

preview-v2 (Y-plan): upload n-tuples-preview shard train-00000-of-00003.parquet (partial 1350000/2376503 reranked, kept 1225815)

Delete folder n-tuples-preview with huggingface_hub

preview-v2 (Y-plan): upload triplets-preview shard train-00002-of-00003.parquet (partial 1350000/2376503 reranked, kept 1225815)

preview-v2 (Y-plan): upload triplets-preview shard train-00001-of-00003.parquet (partial 1350000/2376503 reranked, kept 1225815)

preview-v2 (Y-plan): upload triplets-preview shard train-00000-of-00003.parquet (partial 1350000/2376503 reranked, kept 1225815)

Delete folder triplets-preview with huggingface_hub

preview: upload n-tuples-1m-preview shard train-00001-of-00002.parquet (partial 1150000/2376503 rows)

preview: upload n-tuples-1m-preview shard train-00000-of-00002.parquet (partial 1150000/2376503 rows)