The reply/forward quote header was always emitted in English ("On {date},
{from} wrote:", "---------- Forwarded message ----------", From/Date/Subject)
regardless of UI language, in both the main path (lib/quote-header.ts) and the
composer's inline fallback. quote-header.ts now takes an optional localized
QuoteHeaderLabels set (English defaults preserved for back-compat); page.tsx
builds it from a new quote_header message namespace, and the composer fallback
uses the same keys. Added the quote_header namespace to all 17 locales.
Also folds in the forward-sender-address fix: the forward "From:" line now
shows the full "Name <email>" like every mail client (the reply line keeps the
bare name, which reads naturally in "On … wrote:").
The root (main)/layout renders <html> ABOVE the [locale] segment, so next-intl's
getLocale() returns the default locale there - emitting <html lang="en"> on every
page regardless of UI language (e.g. /de) and a hardcoded English <head>
description. Both are strong "translate this page" triggers in Chrome.
proxy.ts already exposes the nonce to server components via the
x-middleware-request-* mechanism; expose the request pathname the same way as
x-pathname, and have the root layout derive the locale from it (falling back to
getLocale() when the path has no locale segment) for both <html lang> and the
localized meta_description (new key in all 17 locales; the English value is
unchanged).
dealerweb