Add full dataset card with statistics, schema, usage examples

Add clean CPT shards, rebuild scripts, and evaluation proof files

Update CPT script for Llama-3-8B A100 training

Add .gitignore

Add training scripts for CPT, SFT-LoRA, DPO and RunPod support

Add training scripts (CPT baseline + dataset sanity check)

Add train shard 010

Add train shard 009

Add train shard 008

Add train shard 007

Add train shard 006

Add train shard 005

Add train shard 004

Add train shard 003

Add train shard 002

Add train shard 001

Add train shard 000

Add val_small.jsonl (LFS)

Add val.jsonl (LFS)

Add train_small.jsonl

initial commit