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

fix: restore EN + FR lexicons to correct state — EN F1=0.885, FR F1=0.793

fix: remove duplicate EN lexicon entries (539→69 rows) — restores EN F1=0.885

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

chore: sync lexicon from main (missing terms fix)

deploy: FastAPI + mount_gradio_app pattern for /rewrite + Gradio UI