Add BPE tokenizer (needed for Colab training notebooks)

Add symbio_model.py for Colab notebook imports

Add 2MB val text sample for Gemma/HF tokenizer notebooks

Add 20MB raw text sample for Gemma/HF tokenizer notebooks

Upload README.md with huggingface_hub

Distillation test winner (scratch, PPL=43.9, 5M params)

Upload merges.txt with huggingface_hub

Upload vocab.json with huggingface_hub

Upload best checkpoint (val_loss=3.5599)

Upload SymbioGPT-10M teacher (val_ppl=35.3, 13400 steps, A100)

Add curated training tokens (266M tokens, Chinchilla-optimal)

Add validation tokens (72M tokens)

initial commit