Anki

3633b8e chore: regenerate audio, record audio_file columns and audio-text hash manifest
3b638bd feat: add audio-text hash check for ID-keyed audio (grammar, haiku, stories, dialogs)
650d219 docs: fix stale Listening deck card count in README
105ce32 ci: add build check for English text leaking onto ja pages
8de034f feat: translate the Practice AI prompt into ja and mh