docs: show every model per-group score grid uncollapsed

docs: add leaderboard with per-group per-length results

docs: add validated train-from-scratch and LLM-benchmark examples

docs: restructure card to standard dataset-card layout, fix citations

Delete files NC1/* with huggingface_hub

Delete files TC0/* with huggingface_hub

Delete files permutation-groups.py with huggingface_hub

docs: v2 dataset card (corrected convention, 72/22 split, errata, versions)

Release v2: regenerate all 94 groups with per-item deterministic sampling (part 4)

Release v2: regenerate all 94 groups with per-item deterministic sampling (part 3)

Release v2: regenerate all 94 groups with per-item deterministic sampling (part 2)

Release v2: regenerate all 94 groups with per-item deterministic sampling

Add files using upload-large-folder tool

Add files using upload-large-folder tool

Add files using upload-large-folder tool

Add files using upload-large-folder tool

Add files using upload-large-folder tool

Add files using upload-large-folder tool

Add files using upload-large-folder tool

Add files using upload-large-folder tool

Add TC0 dataset: d10

Add individual dataset: c19

Add TC0 dataset: c18

Add individual dataset: c18

Add TC0 dataset: c17

Add TC0 dataset: z2_1

Add individual dataset: z2_1

Add TC0 dataset: v4

Add individual dataset: v4

Add NC1 dataset: s9

Add individual dataset: s9

Add TC0 dataset: d11

Add individual dataset: d11

Add individual dataset: d10

Add individual dataset: c17

Add TC0 dataset: c16

Add individual dataset: z5_1

Add TC0 dataset: z3_4

Add individual dataset: z3_4

Add TC0 dataset: z3_3

Add individual dataset: z3_3

Add TC0 dataset: z3_2

Add individual dataset: z3_2

Add TC0 dataset: z3_1

Add individual dataset: z3_1

Add TC0 dataset: z2_5

Add individual dataset: z2_5

Add TC0 dataset: z2_4

Add individual dataset: z2_4

Add TC0 dataset: z2_3