HanIFEval v1.1 card: attribute review 1 to GPT-6 Pro and review 2 to GPT-6 Astra (Ultra reasoning effort)

HanIFEval v1.1 card: credit the external reviewers (GPT-6 Pro; GPT-6 Astra, Ultra reasoning effort) and update model-family caveat

HanIFEval v1.1: 16 items edited after two external reviews; checker fixes; new fields

Remove bytecode cache uploaded by mistake

HanIFEval v1: 429-item checker-consistent Korean translation of IFEval

initial commit