New /train route lists built JSONL datasets (examples, size) and trained
adapters with their base model, hyperparameters, dataset provenance, and
loss history. train_qlora.py now records train_loss + per-step loss_history
into training_meta.json so future runs surface a loss curve in the cockpit.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Training and eval now run clean on the unsloth 2026.5.2 / transformers v5 /
torch 2.10 stack. Fixes: pytorch/pytorch base image (sidesteps the nvidia/cuda
apt-signature failure and the torch download), correct base-model slug
unsloth/Qwen3.5-4B, TRL SFTConfig API. Adds scripts/eval_adapter.py — runs
dataset rows through base+adapter with structured (transformers-v5) message
content and Qwen3.5 thinking-mode stripping.
First v1 adapter: loss 2.10 -> 0.32 over 3 epochs. Eval surfaced an ill-posed
ioc_extraction dataset (output URL not present in input) — to be fixed in the
ExampleBuilder before the next training run.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Dockerfile.train builds a CUDA 12.4 + unsloth container that consumes the
Trainline JSONL datasets and emits a LoRA adapter at data/adapters/<run>/final.
Defaults target a 24 GB GPU (Qwen3.5-4B-Instruct-bnb-4bit, r=16, bf16, 3 epochs,
effective batch 8). README documents the build + run workflow.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
