skip flash-attn build; install unsloth + deps manually

training/job_entrypoint.sh

@@ -28,7 +28,11 @@ python -m pip install "transformers>=4.46.0,<4.50.0"
 python -m pip install "accelerate>=1.0.0" "peft>=0.13.0" "datasets>=3.0.0"
 python -m pip install "trl>=0.12.0,<0.16.0"
 python -m pip install bitsandbytes
-python -m pip install "unsloth[cu121-ampere-torch250]"
+# Plain unsloth (skip flash-attn extras — needs build-time torch which pip isolation hides)
+python -m pip install --no-deps unsloth_zoo
+python -m pip install --no-deps unsloth
+python -m pip install xformers --index-url https://download.pytorch.org/whl/cu121 || true
+python -m pip install triton tyro typeguard cut_cross_entropy sentence-transformers msgspec hf_transfer
 
 # Sanity check: confirm unsloth + GPU
 python -c "import torch; print('[job] torch', torch.__version__, 'cuda?', torch.cuda.is_available())"