fix(data): regenerate refusal_pairs.py with non-mangled escape sequences

fix(deploy): Dockerfile copies entire backend

cleanup: remove stray scripts/__pycache__

cleanup: remove stray refusal_bench/techniques/__pycache__

cleanup: remove stray refusal_bench/__pycache__

cleanup: remove stray __pycache__

cleanup: remove accidentally-uploaded .venv (14k files of local Python packages)

sync: Wave 1+2+3 backend + 6 techniques + populated refusal/over-refusal data

fix: pin transformers<5 + huggingface-hub<1 (TL 2.11 incompat with new majors)

feat: initial HF Spaces deploy of NeuroScope backend

initial commit