Add end-to-end SADC training script (download subset + train FSD model)

Add SADC subset download script

Fix train.py for training (autograd + in-place ops)

Fix fsd_model/control.py for training (autograd + in-place ops)

Fix fsd_model/planning.py for training (autograd + in-place ops)

Fix fsd_model/cot_reasoning.py for training (autograd + in-place ops)

Add benchmark_cot.json

Add benchmark_base.json

Add run_benchmarks.py

Add benchmarks.py

Add visualization.py

Add data.py

Add model.py

Add cot_reasoning.py

Add control.py

Add planning.py

Add perception.py

Add sensor_fusion.py

Add config.py

Add __init__.py

Add FSD Level 5 model with CoT safety reasoning

initial commit