Offline English lexicon suggestions with autocapitalization, plus a same-height Chinese more-candidates grid over the key area.
Publish one bilingual download surface with clearly separated iPhone/iPad App Store and notarized Mac DMG actions.
Ship official store badges on READMEs and the site, expand discoverability with FAQ/JSON-LD/llms.txt/content pages, and add the Search Console HTML verification file so the live Pages site can be claimed.