The ko.json locale existed but was missing 377 of 1392 keys (~27%),
covering entire feature areas added since the initial translation:
admin plugin management, storage/OIDC/SMTP settings, photos, music
playlists, device pairing, search filters, share dialogs, and more.
Filled in all missing keys with natural Korean translations matching
the existing tone and terminology in the file (파일/폴더/공유/업로드
등), verified full key parity with en.json (1392/1392) and matching
{{placeholder}} interpolation tokens on every translated string.
moduvoice
a3801f5836