track auto-detect + wrong-track guard

track auto-detect + wrong-track guard

participant HF profile links (ODC-style)

ODC-style reference anchors (unranked bar-to-beat)

ODC-style reference anchors (unranked bar-to-beat)

open Season 2 now

i18n EN/ZH/KO + browser auto-detect + language switcher

light ODC-style theme

open Season 1 now

OQC challenge: HF OAuth login + copy-paste guide + submit

initial commit