Register `ko` in the locale list, language names, and labels, and ship
messages/ko.json so the whole UI — dashboard, settings, share views,
clinician PDF, notifications, and AI prompts — renders in Korean.
Extend the locale-parity, English-leak, plural-completeness, and copy
guard tests to cover the new locale, and update README/CONTRIBUTING to
list Korean among the supported languages.
The dynamic /i18n/[locale] route handler answered with Next's default
Cache-Control (private, max-age=0, must-revalidate) and no validator —
its immutable-cache header was overridden, so a non-PWA browser would
re-download the full catalog on every hard load. Static public/ files
keep an ETag (repeat loads revalidate to a 304) and the service
worker's cache-first rule covers the offline relaunch; the ?v= build
key the layout appends busts both per deploy.
scripts/generate-i18n-boot.mjs writes public/i18n/<locale>.js for all
six locales as a prebuild/predev step (the sw-version.js pattern);
output is gitignored. The route handler is removed.
Measured on a production build, authenticated DE session: dashboard
document 522 KB raw / 139 KB gz -> 170 KB raw / 24.6 KB gz; the DE
catalog moves into a one-time 119 KB gz cached asset.
H2
aucun6352