install: python -m pip install -r requirements.txt train: python train.py --qlora --bf16 --num_train_epochs 3 --train_batch_size 1 --gradient_accumulation_steps 16 infer: python infer.py --model_dir outputs/GravityLLM-Qwen2.5-1.5B-S9 --input_json examples/sample_input.json --validate --output_json outputs/sample_prediction.json eval: python evaluate.py --model_dir outputs/GravityLLM-Qwen2.5-1.5B-S9 --data_file data/valid.jsonl --report_path reports/eval_report.json validate-example: python tools/validate_scene.py schemas/scene.schema.json examples/sample_output.json synthetic-data: python tools/make_synthetic_dataset.py --output data/synthetic_train.jsonl --count 50