docs: add a hosted classification section linking Interfaze

Update README.md

docs: report lev vs Jev on all 13 S1Bench subsets

Card: inline-block badges so the Hub keeps them on one row

Card: badges and links on one line; padded, rounded, 2x charts; vertical diagram

Model card in the JEVfire style: hero, Jev results, charts, how it works

lev: step 18750 of preset 4b-instruct

initial commit