chore(hf-deploy): sync main — SW recall boost +39pp, 28 new derogation patterns

fix: sync _preserve_case + statistical bare-count fix from main

fix: use relative imports in core/__init__.py — fixes ModuleNotFoundError on HF Space

feat: sync main → hf-deploy — SW F1=0.840, EN=1.000, FR=0.970, KI=0.667

fix(sw): tester feedback — malaya detection, proverb partial match, wake/yake biographical suppression

fix: add core/__init__.py so core is importable as a package

chore: sync core eval + detector files from main

feat(sw): expand derogation patterns + counter-stereotype suppressors — SW F1 0.816→0.819