Configure LFS for binary files and update Dockerfile

fix: harden HF cache paths and add Space push helper

fix: correct accelerate version to 1.13.0

fix: downgrade TRL to 0.14.0 as requested

fix: upgrade to TRL 0.14.3 and restore top-level imports

fix: use absolute python path and stable pytorch base image

fix: harden Docker build with python3 -m pip and import validation

fix: force trl upgrade and use direct sub-module imports

fix: use python3 in Dockerfile CMD for HF compatibility

fix: revert Dockerfile to latest and pin transformers to 4.46.0

chore: pin HF base image to 4.47.1 for total environment parity

fix: use HF base image and TRL 0.12.1 for GRPOConfig support

fix: upgrade pytorch base image to 2.5.1 for TRL compatibility

chore: set Dockerfile to training mode for HF Space deployment

fix: clean up deps for HF Docker build - server-only pyproject, split requirements

Refactor: Optimized for HF deployment, improved reward stability, and cleaned up workspace.

Fix 0.52 plateau, implement multi-turn eval, and prepare HF deployment