Fix MDF order book depth and CH AI reference price fallback

Update notebook to push full merged model; restore stockex-ch-trader as default

Remove ch_trader_finetune.ipynb, keep only stockex-clearing-house-llm-fine-tuning.ipynb

Replace model merge with direct adapter push to HF Hub

Fix training cell hanging: remove load_best_model_at_end

Add train/eval loss plot after training

Restructure fine-tune notebook: Kaggle+Colab resume, checkpoint cleanup

Fix AI Analyst duplicate output and CH trade attribution

Update fine-tune notebook securities to real StockEx symbols

Print resume summary: steps done/remaining, epoch progress, % complete

Add resumable training with Google Drive + HF Hub checkpoints

Fix SFTConfig: move max_seq_length to tokenizer.model_max_length

Fix notebook for T4/free tier: auto GPU detection + bitsandbytes fix

Upgrade CH fine-tuning to Qwen2.5-32B-Instruct

Add CH trader fine-tuning notebook and update default model