A first visit resolved to Chinese regardless of the browser: LocaleService
read `dsh.locale` and fell straight back to `zh` when nothing was stored,
ignoring the languages the browser already states it reads.
The initial locale now resolves through three ordered sources — the persisted
preference, then `navigator` (first entry of the ordered language list whose
primary subtag names a shipped locale, so `zh-Hans-CN` -> zh and `en-GB` ->
en), then `FALLBACK_LOCALE`. An explicit choice still wins and nothing writes
the detected locale back to storage, so "has the user chosen?" stays a
question only the stored value answers.
Specs asserting the shipped Chinese copy now state the browser they assume:
the web e2e scenarios open their page with `locale: ZH_BROWSER_LOCALE`, and
package specs pin it through the new `pinBrowserLanguages` test helper.
`settings-chrome.e2e.ts` gains an English-browser scenario as the
assembled-app proof.
Registrations declare a dictionary namespace (locale: NS) and the renderer
synthesizes a typed t prop for the entry's component from the installed
LocaleFace; the seat binding is re-derived per locale revision, so a language
switch hands out fresh t references and memoized consumers re-render through
ordinary shallow comparison. LocaleNamespaceMap is the declare-merge table
(namespace -> dictionary key union); TranslateNS<'ns'> is the
namespace-addressed translate type (namespace keys plus the shared common
vocabulary), carried by the t seat and by the locale service's typed bind.
LocaleService implements the face (lookup ns -> common -> zh -> key,
revision-carrying snapshots with subscriber isolation) and installs it
through the boot-once slots.installLocale seam, mirroring the renderer
install. The typed register(ns, {zh, en}) overload checks each dictionary
against the namespace's key union and requires every shipped locale, so a
missing or extra key and an unbalanced translation are compile errors.
Dictionary registration bumps the face revision without emitting
locale/change — the event now means exactly 'the active locale switched',
so registration-heavy boot cannot storm event listeners.
Add the browser Settings surface as slot-composed plugins over new
preference services:
- Rename dsh-client-i18n to dsh-client-locale (locale is the domain
name); LocaleService adds getLocale()/setLocale(id), immutable
snapshots, a locale/change event, and dsh.locale persistence.
- ThemeService owns the light/dark/system preference (default system),
resolves system via prefers-color-scheme, publishes theme/change
snapshots, persists dsh.theme, and no longer touches the DOM;
ui-layout's ThemePresenter applies resolved snapshots
(body[data-ds-dark-theme] + alias tokens) and cleans up on dispose.
- ui-sidebar drops the phase-1 settings dropdown/modal; the foot renders
the new sidebar.settings slot with the column state.
- New ui-settings shell occupies sidebar.settings: foot trigger row and
the centered 1080x700 panel (figma 501:29947) with 24% mask, close
button / mask click / Escape all closing, and a 188px nav projected
from the settings.section list slot it declares. Nav labels are
registrant-localized; sections re-register on locale change, so the
ledger version is the shell's only subscription.
- ui-settings-general registers the General section: Permission and
Tool Call skeletons, live Language (locale menu) and Appearance
(Light/Dark/System cubes following the persisted preference); its
slot store mirrors both service snapshots via apply-side listeners.
- ui-settings-models registers the Models nav entry with an empty
content column.
- Portaled menus pin z-index above modal overlays (a menu anchored
inside the settings dialog rendered underneath it and was
unclickable).
- theme/data/list-pen icons in ui-primitives; settings copy ships as
zh/en dictionaries; fixture manifests gain the settings rows.
