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/layers/vessels/cards.js

@@ -2,6 +2,7 @@ import {
   accentForVesselType,
   normalizeVesselType,
 } from '../../data/vesselLabels.js';
+import { t } from '../../i18n/index.js';
 
 export function createCards({
   vesselState,
@@ -20,9 +21,13 @@ export function createCards({
     const stale = (record.missedRefreshes || 0) > 0;
     el.classList.add('active');
     el.textContent = [
-      `AIS: ${trimHudValue(record.name, 32)}`,
-      `${trimHudValue(record.type || 'VESSEL', 24)}  SPD: ${formatSpeed(record.speed)}  HDG: ${formatHeading(record.heading ?? record.course)}`,
-      `MMSI: ${record.mmsi || '--'}  ${formatPositionTime(record)}${stale ? '  · STALE' : ''}`,
+      t('layers.vessel.hudName', { name: trimHudValue(record.name, 32) }),
+      t('layers.vessel.hudTypeLine', {
+        type: trimHudValue(record.type || t('layers.vessel.fallback'), 24),
+        speed: formatSpeed(record.speed),
+        heading: formatHeading(record.heading ?? record.course),
+      }),
+      `MMSI: ${record.mmsi || '--'}  ${formatPositionTime(record)}${stale ? `  · ${t('layers.status.stale')}` : ''}`,
     ].join('\n');
   }
 
@@ -30,7 +35,7 @@ export function createCards({
     const el = document.getElementById('hud-ais-vessel');
     if (!el) return;
     el.classList.remove('active');
-    el.textContent = 'AIS: --';
+    el.textContent = t('layers.vessel.hudIdle');
   }
 
   function trimHudValue(value, maxLength) {
@@ -85,7 +90,7 @@ export function createCards({
     const direction = record.heading ?? record.course;
     const details = [
       [
-        vesselTypeShort(record) || 'VESSEL',
+        vesselTypeShort(record) || t('layers.vessel.fallback'),
         formatSpeed(record.speed),
         Number.isFinite(direction) ? `${Math.round(direction)}°` : '--°',
       ].join(' · '),
@@ -94,7 +99,7 @@ export function createCards({
     if (destination) details.push(`→ ${trimHudValue(destination, 24)}`);
     const stale = (record.missedRefreshes || 0) > 0;
     details.push(
-      `MMSI ${record.mmsi || '--'} · ${formatPositionTime(record)}${stale ? ' · STALE' : ''}`,
+      `MMSI ${record.mmsi || '--'} · ${formatPositionTime(record)}${stale ? ` · ${t('layers.status.stale')}` : ''}`,
     );
     return {
       id: vesselOverlayEntryId(record),
@@ -151,7 +156,7 @@ export function createCards({
   function displayVesselName(record) {
     const name = String(record.name || '').trim();
     if (name && name !== 'VESSEL' && name !== record.mmsi) return name;
-    return record.mmsi ? `MMSI ${record.mmsi}` : 'VESSEL';
+    return record.mmsi ? `MMSI ${record.mmsi}` : t('layers.vessel.fallback');
   }
 
   function formatSpeed(speed) {
@@ -163,10 +168,10 @@ export function createCards({
   }
 
   function formatPositionTime(record) {
-    if (!record.lastPositionUtc) return 'POS: LIVE';
+    if (!record.lastPositionUtc) return t('layers.vessel.posLive');
     const date = new Date(record.lastPositionUtc);
-    if (Number.isNaN(date.getTime())) return 'POS: LIVE';
-    return `POS: ${date.toISOString().slice(11, 19)}Z`;
+    if (Number.isNaN(date.getTime())) return t('layers.vessel.posLive');
+    return t('layers.vessel.posAt', { time: date.toISOString().slice(11, 19) });
   }
   return {
     updateSelectedVesselHud,

src/layers/vessels/lifecycle.js

@@ -1,9 +1,6 @@
 import { VESSEL_OVERLAY_SOURCE_ID } from '../../data/vesselLabels.js';
-import {
-  AIS_FIRST_CONNECT_GRACE_MS,
-  AIS_FIRST_CONNECT_LABEL,
-  AIS_HEALTHY_STATUSES,
-} from './policy.js';
+import { t } from '../../i18n/index.js';
+import { AIS_FIRST_CONNECT_GRACE_MS, AIS_HEALTHY_STATUSES } from './policy.js';
 
 export function createLifecycle({
   vesselState,
@@ -41,7 +38,7 @@ export function createLifecycle({
     state.feed.firstConnectStartedAt = startedAt;
     state.feed.firstConnectDeadline = startedAt + AIS_FIRST_CONNECT_GRACE_MS;
     state.feed.error = null;
-    state.feed.loadingLabel = AIS_FIRST_CONNECT_LABEL;
+    state.feed.loadingLabel = t('layers.vessel.awaitingFirstPosition');
     scheduleFirstConnectExpiry(sessionId, AIS_FIRST_CONNECT_GRACE_MS);
   }
 
@@ -63,8 +60,8 @@ export function createLifecycle({
       state.feed.firstConnectPhase = 'unavailable';
       state.feed.loadingLabel = '';
       state.feed.error = state.feed.lastMessageAt
-        ? 'awaiting usable AIS positions…'
-        : 'awaiting first AIS message…';
+        ? t('layers.vessel.awaitingPositions')
+        : t('layers.vessel.awaitingFirstMessage');
       state.feed.stale = state.feed.count > 0;
     }, delayMs);
   }

src/layers/vessels/queries.js

@@ -1,11 +1,27 @@
 import * as Cesium from 'cesium';
+import { t } from '../../i18n/index.js';
+
+// The vessels ingestion owner is a portable module graph (it also runs in the
+// server-side source builds), so it writes stable English feed labels into
+// state. Localize those known labels here, at the presentation read; anything
+// else (a bespoke manager label) passes through verbatim.
+const FEED_STATE_LABEL_KEYS = Object.freeze({
+  'refreshing...': 'layers.meta.refreshing',
+  'loading...': 'layers.meta.loading',
+  'awaiting first AIS position…': 'layers.vessel.awaitingFirstPosition',
+});
+
+function localizeFeedLabel(raw) {
+  if (typeof raw !== 'string' || !raw.trim()) return raw;
+  const key = FEED_STATE_LABEL_KEYS[raw.trim()];
+  return key ? t(key) : raw;
+}
 import {
   AIS_DEGRADED_STATUSES,
   AIS_HEALTHY_STATUSES,
   AIS_STATUS_REASON,
   REFRESH_MS,
   FOCUS_EVIDENCE_DEV,
-  AIS_FIRST_CONNECT_LABEL,
 } from './policy.js';
 
 export function createQueries({
@@ -82,8 +98,8 @@ export function createQueries({
     if (acceptedRowCount > 0) return null; // accepted rows may be stale while reconnecting, but remain usable
     if (AIS_HEALTHY_STATUSES.has(status)) {
       return payload?.lastMessageAt
-        ? 'awaiting usable AIS positions…'
-        : 'awaiting first AIS message…';
+        ? t('layers.vessel.awaitingPositions')
+        : t('layers.vessel.awaitingFirstMessage');
     }
     if (!status) return null;
     const detail =
@@ -132,7 +148,7 @@ export function createQueries({
       acceptedRowCount,
       error:
         deriveAisFeedError(payload, acceptedRowCount) ||
-        (acceptedRowCount === 0 ? 'awaiting usable AIS positions…' : null),
+        (acceptedRowCount === 0 ? t('layers.vessel.awaitingPositions') : null),
     };
   }
 
@@ -504,8 +520,8 @@ export function createQueries({
         lastUpdate: state.feed.lastUpdate,
         loading: state.feed.loading || waitingForFirstPosition,
         loadingLabel: waitingForFirstPosition
-          ? AIS_FIRST_CONNECT_LABEL
-          : state.feed.loadingLabel,
+          ? t('layers.vessel.awaitingFirstPosition')
+          : localizeFeedLabel(state.feed.loadingLabel),
         error: state.feed.error,
         stale: state.feed.stale,
         partial: state.feed.partial,