feat(i18n): presentation extraction — t() call sites, data-i18n templates, locale selector

Route every application-owned presentation string through the i18n
core: t() call sites across the app/layers/ui/data/voice surfaces,
data-i18n* attributes in the src/ui/templates/*.html markup (applied at
boot by applyDocumentTranslations from src/standalone/application.js),
and the dock locale selector (runtime-rendered from the offered pair —
a single EN button while only English ships).

Rebased onto current main, where the extraction follows the module
splits: the shell wiring now lands in the owner modules
(panelChrome, visualSettings, locationNavigation, shareRestoration,
shellFeedback, applicationShell) and the voice status corpus in the
realtime* modules; scene status lives in director.js +
playbackAdapter.js.

Modules shared with the node runtime (loadingFeedback,
installationFeedback, regionalModel, keySetupCore, vessels ingestion)
stay environment-neutral English and localize at their browser render
sites (chip maps in shellFeedback/installations controls, the weather
table in cockpitBriefing, keySetupRequirementEnvVars compositions), so
the package-boundary graph stays clean; the browser boundary groups
now own the i18n modules they reach (scripts/package-boundaries.json).

src/scenes/playbackAdapter.js

@@ -1,4 +1,6 @@
 /** Connect the portable Director runner to the existing scene presentation. */
+import { t } from '../i18n/index.js';
+
 export function createScenePlaybackAdapter(director, defaultShotDurationSec) {
   let timing;
   let travel;
@@ -14,7 +16,12 @@ export function createScenePlaybackAdapter(director, defaultShotDurationSec) {
       director._renderSceneSelect();
       director._renderShotList();
       director._updateStatus(
-        `Running ${index + 1}/${total}: ${scene.title} / ${shot.title}`,
+        t('setup.scenes.status.runningShot', {
+          index: index + 1,
+          total,
+          scene: scene.title,
+          shot: shot.title,
+        }),
       );
       director._logEvent('shot_start', {
         sceneId: scene.id,
@@ -71,7 +78,7 @@ export function createScenePlaybackAdapter(director, defaultShotDurationSec) {
     },
     complete() {
       director._setProgress(1);
-      director._updateStatus('Scene run complete');
+      director._updateStatus(t('setup.scenes.status.runComplete'));
       director._logEvent('scene_run_complete', {});
     },
   };