fix: patch torch._pytree.register_constant + tighten torchao/transformers pins

Force-downgrade torchao to 0.6.1 after unsloth to fix register_constant crash

Upgrade to PyTorch 2.6.0 base image for native torchao support

Patch all missing torch int1-int7 dtypes for torchao compat

Add explicit torch.int1 workaround

Fix torchao int1 error by pinning to 0.6.1

Fix torch.int1 error by downgrading torchao

Add /smoke endpoint for quick pipeline testing

Fix dependency conflicts by relying on unsloth dependencies

Fix reward_fn sandbox signature

Fix HF Docker build: install git for unsloth

Enable WandB logging and add API key

Initial commit for CodeForge GRPO training

initial commit