refactor(i18n): key messages by English text; add Russian

Replace the semantic keys with the English source text, so code reads as the UI does and English needs no catalog: t('Save keys'), tn(count, one, other) for plurals, msg() for text stored in data, and bare data-i18n* markup that translates the element's own English. Other languages are one flat JSON each. - Simplify src/i18n: drop namespaces, the configurable locale pair (GEV_DEFAULT_LOCALE / GEV_SECONDARY_LOCALE) and its build defines. Locale comes from ?lang=, the stored choice, then browser languages. - Add scripts/i18n.mjs (npm run i18n): extracts every message from t/tn/msg and markup, and fails on missing, unused, placeholder-mismatched or wrongly-shaped plural entries. npm test runs it via catalog.test.mjs. - Add Russian (src/i18n/locales/ru.json, 833 messages), started from the community catalog in #312 and reviewed against the current English. - Fix data-i18n placed on parents that would wipe their children (cockpit LEVEL and local weather cells, first-run EXPLORE MANUALLY tile), and a doubled degree sign in the TRACK ACQUIRED signal. - Rewrite docs/TRANSLATORS.md for the new workflow; drop sections the earlier merge resurrected in docs/CURRENT-STATE.md. Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-11-05 10:53:59 +00:00 · 2026-10-12 13:48:56 +04:00
1 parent dfbaeafbd8
commit 13efd411b6
@@ -57,8 +57,8 @@ export function createPanel({ state: layerState, services, parts, source }) {
  function hidePanel() {
    if (layerState.panel) {
      const markup = `<div class="military-awareness-standby">
-      <strong>${layerState.enabled ? t('layers.awareness.standbyReady') : t('layers.awareness.standbyOff')}</strong>
-      <span>${layerState.enabled ? t('layers.awareness.standbySelect') : t('layers.awareness.standbyEnable')}</span>
+      <strong>${layerState.enabled ? t('CONTEXT READY') : t('GLOBAL CONTEXT OFF')}</strong>
+      <span>${layerState.enabled ? t('SELECT A FLIGHT, VESSEL, OR MAPPED INSTALLATION') : t('ENABLE TO LOAD OBSERVED / MAPPED PROXIMITY')}</span>
    </div>`;
      layerState.panel.hidden = false;
      if (layerState.panelMarkup !== markup) {
@@ -79,11 +79,10 @@ export function createPanel({ state: layerState, services, parts, source }) {
        const label = formatAwarenessLabel(item);
        const targetId = item.icao24 || item.mmsi || item.id;
        if (!targetId) {
-          return `<li><span class="military-awareness-target unavailable" aria-label="${t('layers.awareness.unavailableAria')}">${escapeHtml(label)} <span>${formatAwarenessDistance(item.distanceM)}</span></span></li>`;
+          return `<li><span class="military-awareness-target unavailable" aria-label="${t('Unavailable')}">${escapeHtml(label)} <span>${formatAwarenessDistance(item.distanceM)}</span></span></li>`;
        }
-        const accessibleLabel =
-          label === '—' ? t('layers.awareness.unavailableAria') : label;
-        return `<li><button type="button" class="military-awareness-target" data-awareness-layer="${escapeHtml(cohort.id)}" data-awareness-id="${escapeHtml(targetId)}" aria-label="${escapeHtml(t('layers.awareness.focusAria', { label: accessibleLabel }))}">${escapeHtml(label)} <span>${formatAwarenessDistance(item.distanceM)}</span></button>${namedAreasHtml(item.memberNames)}</li>`;
+        const accessibleLabel = label === '—' ? t('Unavailable') : label;
+        return `<li><button type="button" class="military-awareness-target" data-awareness-layer="${escapeHtml(cohort.id)}" data-awareness-id="${escapeHtml(targetId)}" aria-label="${escapeHtml(t('Focus {label}', { label: accessibleLabel }))}">${escapeHtml(label)} <span>${formatAwarenessDistance(item.distanceM)}</span></button>${namedAreasHtml(item.memberNames)}</li>`;
      })
      .join('');
    const pageCount = Math.max(
@@ -104,10 +103,10 @@ export function createPanel({ state: layerState, services, parts, source }) {

  function navigationControlsHtml() {
    const canPrevious = layerState.navigationIndex > 0;
-    return `<div class="military-awareness-controls" role="group" aria-label="${t('layers.awareness.controlsAria')}">
-    <button type="button" data-awareness-action="previous" title="${t('layers.awareness.previousTitle')}"${canPrevious ? '' : ' disabled'}>${t('layers.awareness.previous')}</button>
-    <button type="button" data-awareness-action="focus">${t('layers.awareness.focus')}</button>
-    <button type="button" data-awareness-action="next" title="${t('layers.awareness.nextTitle')}"${parts.navigation.canNavigateNext() ? '' : ' disabled'}>${t('layers.awareness.next')}</button>
+    return `<div class="military-awareness-controls" role="group" aria-label="${t('Global Context navigation')}">
+    <button type="button" data-awareness-action="previous" title="${t('Previous — prior visited contact in the 250 km window')}"${canPrevious ? '' : ' disabled'}>${t('PREVIOUS')}</button>
+    <button type="button" data-awareness-action="focus">${t('FOCUS')}</button>
+    <button type="button" data-awareness-action="next" title="${t('Next — nearest unvisited contact in the 250 km window')}"${parts.navigation.canNavigateNext() ? '' : ' disabled'}>${t('NEXT')}</button>
  </div>`;
  }

@@ -189,7 +188,7 @@ export function createPanel({ state: layerState, services, parts, source }) {
    ${namedAreasHtml(subject.memberNames)}
    ${navigationControlsHtml()}
    ${cohorts.map(rowHtml).join('')}
-    <p class="military-awareness-note" tabindex="-1" data-awareness-focus-continuation>${t('layers.awareness.note')}</p>`;
+    <p class="military-awareness-note" tabindex="-1" data-awareness-focus-continuation>${t('Open-source mapped/observed context. Missing broadcasts, unloaded map areas, or unmapped sites are not evidence of absence.')}</p>`;
    panel.hidden = false;
    if (layerState.panelMarkup !== markup) {
      const focusSnapshot = captureAwarenessPanelFocus(panel);
@@ -138,7 +138,7 @@ export function createRendering({
      '--compass-rotation',
      `${-headingDeg}deg`,
    );
-    layerState.compassHeading.textContent = t('layers.awareness.hdg', {
+    layerState.compassHeading.textContent = t('HDG {value}°', {
      value: String(headingDeg).padStart(3, '0'),
    });
    layerState.compassHeading.style.left = `${geometry.centerX}px`;
@@ -224,12 +224,12 @@ export function createRendering({
            )
          : null;
      const bearingText = Number.isFinite(bearing)
-        ? t('layers.awareness.brg', {
+        ? t('BRG {value}°', {
            value: String(Math.round(bearing)).padStart(3, '0'),
          })
-        : t('layers.awareness.brgUnknown');
+        : t('BRG —');
      const courseText = Number.isFinite(item.track)
-        ? ` · ${t('layers.awareness.crs', {
+        ? ` · ${t('CRS {value}°', {
            value: String(Math.round(item.track)).padStart(3, '0'),
          })}`
        : '';
@@ -19,10 +19,9 @@ const WITHIN_KM_RE = /^WITHIN (\d+) KM$/;

 function localizeCoverageLabel(label) {
  if (typeof label !== 'string' || !label) return label;
-  if (label === 'CURRENT VIEWPORT ONLY')
-    return t('layers.awareness.coverage.viewport');
+  if (label === 'CURRENT VIEWPORT ONLY') return t('CURRENT VIEWPORT ONLY');
  const within = WITHIN_KM_RE.exec(label);
-  if (within) return t('layers.awareness.coverage.within', { km: within[1] });
+  if (within) return t('WITHIN {km} KM', { km: within[1] });
  return label;
 }

@@ -94,7 +93,7 @@ export function createSubject({ state: layerState, services, parts, source }) {
      cohorts: [
        {
          id: 'flights',
-          label: t('layers.awareness.cohort.flights'),
+          label: t('Flights'),
          source: flightsState.stats.source || SOURCE_LABEL.flights,
          provenance: retainedProvenance(
            'flights',
@@ -113,7 +112,7 @@ export function createSubject({ state: layerState, services, parts, source }) {
        },
        {
          id: 'military',
-          label: t('layers.awareness.cohort.military'),
+          label: t('Military flights'),
          source: militaryState.stats.source || SOURCE_LABEL.military,
          provenance: retainedProvenance(
            'military',
@@ -132,7 +131,7 @@ export function createSubject({ state: layerState, services, parts, source }) {
        },
        {
          id: 'ais-live-vessels',
-          label: t('layers.awareness.cohort.vessels'),
+          label: t('AIS vessels'),
          source: vesselsState.stats.source || SOURCE_LABEL['ais-live-vessels'],
          provenance: retainedProvenance(
            'ais-live-vessels',
@@ -147,7 +146,7 @@ export function createSubject({ state: layerState, services, parts, source }) {
        },
        {
          id: 'military-installations',
-          label: t('layers.awareness.cohort.installations'),
+          label: t('Mapped installations'),
          source:
            installationsState.stats.source ||
            SOURCE_LABEL['military-installations'],
@@ -159,7 +158,7 @@ export function createSubject({ state: layerState, services, parts, source }) {
          ),
          coverage:
            localizeCoverageLabel(installationsState.stats.coverageLabel) ||
-            t('layers.awareness.coverage.viewport'),
+            t('CURRENT VIEWPORT ONLY'),
          summary: parts.queries.summarizeInstallationViewport(
            installations,
            installationsState,
@@ -68,10 +68,10 @@ export function createControls({ state: layerState, services, parts, source }) {
      if (layerState._loading) {
        stats.loadingLabel =
          layerState._activeCityIds.size > 0
-            ? t('layers.bike.loadingSyncing', {
+            ? t('syncing {count} city feeds...', {
                count: layerState._activeCityIds.size,
              })
-            : t('layers.bike.loadingScanning');
+            : t('scanning nearby systems...');
      }
      if (layerState._error) stats.error = layerState._error;
      return stats;
@@ -24,8 +24,8 @@ export function createSelection({
    const stationLabel =
      stationName ||
      (record?.stationId
-        ? t('layers.bike.stationWithId', { id: record.stationId })
-        : t('layers.bike.stationFallback'));
+        ? t('Station {id}', { id: record.stationId })
+        : t('Station'));
    const bikes = Number.isFinite(record?.bikesAvailable)
      ? record.bikesAvailable
      : '?';
@@ -36,17 +36,18 @@ export function createSelection({

    const lines = [
      stationLabel,
-      t('layers.bike.card.capacity', { bikes, docks, capacity }),
+      t('🚲 {bikes} avail · {docks} docks · {capacity} cap', {
+        bikes,
+        docks,
+        capacity,
+      }),
    ];

    // Append warnings for stations that are offline or partially non-operational
    const abnormal = [];
-    if (record?.isInstalled === false)
-      abnormal.push(t('layers.bike.warning.notInstalled'));
-    if (record?.isRenting === false)
-      abnormal.push(t('layers.bike.warning.notRenting'));
-    if (record?.isReturning === false)
-      abnormal.push(t('layers.bike.warning.notReturning'));
+    if (record?.isInstalled === false) abnormal.push(t('⚠️ Not installed'));
+    if (record?.isRenting === false) abnormal.push(t('⚠️ Not renting'));
+    if (record?.isReturning === false) abnormal.push(t('⚠️ Not returning'));
    if (abnormal.length > 0) {
      lines.push(abnormal.join(' · '));
    }
@@ -48,6 +48,6 @@ export function headingHudToken(camera) {
  // The token copy lives in the layers catalog (en is byte-identical to the
  // literals these replace); presentation stays here, translation at read.
  return isHeadingEstimated(camera)
-    ? t('layers.cctv.summary.hdgEstimated', { value: hdg })
-    : t('layers.cctv.summary.hdg', { value: hdg });
+    ? t('HDG {value}° (ESTIMATED)', { value: hdg })
+    : t('HDG {value}°', { value: hdg });
 }
@@ -20,10 +20,13 @@ export function createPresentation({
    const active = parts.selection.getActiveRecord();
    if (!active) {
      return layerState._records.length
-        ? t('layers.cctv.summary.standingBy', {
-            count: layerState._records.length,
-          })
-        : t('layers.cctv.summary.empty');
+        ? t(
+            '{count} CAMERAS STANDING BY · NO CAMERA SELECTED · CLICK A CAMERA TO ACTIVATE',
+            {
+              count: layerState._records.length,
+            },
+          )
+        : t('No cameras available in catalog.');
    }

    const area = parts.model.sectorAreaKm2(
@@ -37,37 +40,33 @@ export function createPresentation({
    const calBadge = parts.calibration.deriveCalBadge(active.camera);

    return [
-      t('layers.cctv.summary.city', {
+      t('{city} CCTV', {
        city: active.camera.city.toUpperCase(),
      }),
      `${active.camera.name.toUpperCase()}`,
      // A synthetic bearing (headingConfidence 'low', no human calibration)
      // is tagged so a hashed guess never reads as a surveyed facing (#639).
      headingHudToken(active.camera),
-      t('layers.cctv.summary.fov', {
+      t('FOV {value}°', {
        value: Math.round(active.camera.fovDeg),
      }),
-      t('layers.cctv.summary.coverage', { value: area.toFixed(2) }),
+      t('COVERAGE {value}km²', { value: area.toFixed(2) }),
      overlapCount > 0
-        ? t('layers.cctv.summary.overlap', { count: overlapCount })
-        : t('layers.cctv.summary.isolated'),
-      layerState._showProjection
-        ? t('layers.cctv.summary.projMonitor')
-        : t('layers.cctv.summary.projOff'),
-      layerState._coverageMode === 'viewshed'
-        ? t('layers.cctv.summary.viewshed')
-        : null,
-      t('layers.cctv.summary.cal', {
+        ? t('OVERLAP {count} cams', { count: overlapCount })
+        : t('ISOLATED VIEW'),
+      layerState._showProjection ? t('PROJ MONITOR') : t('PROJ OFF'),
+      layerState._coverageMode === 'viewshed' ? t('VIEWSHED') : null,
+      t('CAL {value}', {
        value: calBadge.replace('-', ' ').toUpperCase(),
      }),
      health?.sourceKind
-        ? t('layers.cctv.summary.src', {
+        ? t('SRC {value}', {
            value: String(health.sourceKind).toUpperCase(),
          })
-        : t('layers.cctv.summary.src', {
+        : t('SRC {value}', {
            value: String(active.camera.feedType || 'image').toUpperCase(),
          }),
-      t('layers.cctv.summary.context', { value: viewBand.toUpperCase() }),
+      t('{value} CONTEXT', { value: viewBand.toUpperCase() }),
    ]
      .filter(Boolean)
      .join(' · ');
@@ -116,7 +116,7 @@ export function createCards({
        if (!card.interactive) return card;
        return {
          ...card,
-          accessibilityLabel: t('layers.firms.card.focusAria', {
+          accessibilityLabel: t('Focus fire detection {title}, {details}', {
            title: card.title,
            details: card.details.join(', '),
          }),
@@ -331,19 +331,17 @@ export function createModel({

  function buildSelectedFireCard(fire, nowMs) {
    const meta = [
-      t('layers.firms.card.confSuffix', {
+      t('{value} conf', {
        value: confidenceBucket(fire.confidence),
      }),
    ];
    if (fire.acqMs > 0) {
      const age = formatAge(nowMs - fire.acqMs);
-      if (age) meta.push(t('layers.firms.card.ageSuffix', { value: age }));
+      if (age) meta.push(t('{value} ago', { value: age }));
    }
    const sat = satelliteShortName(fire.satellite);
    meta.push(
-      sat
-        ? `${fire.sensor || 'VIIRS'} ${sat}`
-        : fire.sensor || t('layers.firms.card.sensorUnavailable'),
+      sat ? `${fire.sensor || 'VIIRS'} ${sat}` : fire.sensor || t('sensor n/a'),
    );
    return {
      id: `selected-fire:${fireDetectionKey(fire)}`,
@@ -353,11 +351,11 @@ export function createModel({
      cullPosition: fireCullPosition(fire),
      gapPx: frpPixelSize(fire.frp),
      accent: accentForSeverity(detectionColorStop(fire).name),
-      title: t('layers.firms.card.fire', { frp: formatFrp(fire.frp) }),
+      title: t('FIRE · {frp} MW', { frp: formatFrp(fire.frp) }),
      details: [
        meta.join(' · '),
        formatLatLon(fire.lat, fire.lon) +
-          (fire.night ? ` · ${t('layers.firms.card.night')}` : ''),
+          (fire.night ? ` · ${t('NIGHT')}` : ''),
      ],
      selected: true,
      priority: Number.MAX_SAFE_INTEGER,
@@ -390,7 +388,7 @@ export function createModel({
      cullPosition: candidate.cullPosition || candidate.position,
      gapPx: frpPixelSize(fire.frp),
      accent: accentForSeverity(detectionColorStop(fire).name),
-      title: t('layers.firms.card.ambient', { frp: formatFrp(fire.frp) }),
+      title: t('▲ {frp} MW', { frp: formatFrp(fire.frp) }),
      details: [meta.join(' · ')],
      selected: false,
      priority: Number(fire.frp) || 0,
@@ -408,16 +406,11 @@ export function createModel({

  function buildCellCard(candidate, nowMs) {
    const cell = candidate.cell;
-    const noun =
-      cell.count === 1
-        ? t('layers.firms.card.fireNoun')
-        : t('layers.firms.card.firesNoun');
-    const parts = [
-      t('layers.firms.card.maxFrp', { value: formatFrp(cell.maxFrp) }),
-    ];
+    const noun = cell.count === 1 ? t('FIRE') : t('FIRES');
+    const parts = [t('max {value} MW', { value: formatFrp(cell.maxFrp) })];
    if (cell.newestAcqMs > 0) {
      const age = formatAge(nowMs - cell.newestAcqMs);
-      if (age) parts.push(t('layers.firms.card.newAge', { value: age }));
+      if (age) parts.push(t('new {value}', { value: age }));
    }
    return {
      id: `cell:${cell.latCell ?? 'x'}:${cell.lonCell ?? 'x'}`,
@@ -503,12 +496,11 @@ export function createModel({
  /** Millisecond delta → "<1m ago" / "Xm ago" / "Xh ago" (fresh-feed readout). */

  function formatAgoMinutes(deltaMs) {
-    if (!Number.isFinite(deltaMs) || deltaMs < 0)
-      return t('layers.meta.justNow');
+    if (!Number.isFinite(deltaMs) || deltaMs < 0) return t('just now');
    const minutes = Math.floor(deltaMs / 60000);
-    if (minutes < 1) return t('layers.firms.underMinuteAgo');
-    if (minutes < 90) return t('layers.meta.minutesAgo', { count: minutes });
-    return t('layers.meta.hoursAgo', { count: Math.round(minutes / 60) });
+    if (minutes < 1) return t('<1m ago');
+    if (minutes < 90) return t('{count}m ago', { count: minutes });
+    return t('{count}h ago', { count: Math.round(minutes / 60) });
  }

  /** Normalized 0..1 confidence → low/nominal/high display bucket. */
@@ -60,24 +60,24 @@ export function createQueries({
    getStats() {
      const now = Date.now();
      const staleText = layerState._lastUpdate
-        ? t('layers.firms.staleCached', {
+        ? t('STALE · cached {age}', {
            age:
              components.model.formatAge(now - layerState._lastUpdate) || '<1h',
          })
-        : t('layers.status.stale');
+        : t('STALE');
      let loadingLabel = '';
      if (layerState._loading) {
        loadingLabel = layerState._fires.length
-          ? t('layers.meta.refreshing')
-          : t('layers.meta.loading');
+          ? t('refreshing...')
+          : t('loading...');
      } else if (layerState._keyRequired) {
-        loadingLabel = t('layers.firms.keyRequired');
+        loadingLabel = t('KEY REQUIRED');
      } else if (layerState._stale) {
        loadingLabel = staleText;
      } else if (layerState._error) {
        loadingLabel = layerState._error;
      } else if (layerState._lastUpdate) {
-        loadingLabel = t('layers.firms.liveUpdated', {
+        loadingLabel = t('LIVE · updated {age}', {
          age: components.model.formatAgoMinutes(now - layerState._lastUpdate),
        });
      }
@@ -93,7 +93,7 @@ export function createQueries({
        // the operator can take.
        keyRequired: layerState._keyRequired,
        error: layerState._keyRequired
-          ? t('layers.firms.keyRequired')
+          ? t('KEY REQUIRED')
          : layerState._stale
            ? staleText
            : layerState._error,
@@ -756,7 +756,7 @@ export function createTracking({
    const spd = info.velocity ? `${Math.round(info.velocity * 1.944)} kts` : '';
    const stale =
      flightState.records.missingPolls.get(icao24) || flightState.feed._backoff
-        ? t('layers.status.stale')
+        ? t('STALE')
        : '';
    const lines = [[cs, fl, spd, stale].filter(Boolean).join(' · ')];
    // Converted contacts report their class as TR-3B and nothing else — the
@@ -5,7 +5,7 @@ import {
  DISTANCE_PREFILTER_MARGIN_M,
  ANCHOR_REFRESH_M,
 } from './policy.js';
-import { t } from '../../i18n/index.js';
+import { t, msg } from '../../i18n/index.js';

 // installationFeedback.js composes its guidance inside the portable
 // node/browser graph (the server-side HUD summary reads the same module), so
@@ -13,19 +13,20 @@ import { t } from '../../i18n/index.js';
 // boundary: map the closed message vocabulary to the catalog, passing any
 // live provider error through verbatim (docs/TRANSLATORS.md).
 const INSTALLATION_FEEDBACK_KEYS = Object.freeze({
-  'Retrying mapped sites…': 'layers.installations.feedback.retrying',
-  'Fetching mapped sites…': 'layers.installations.feedback.fetching',
-  'Zoom in to search mapped installations':
-    'layers.installations.feedback.zoomIn',
-  'Showing cached mapped sites': 'layers.installations.feedback.cached',
-  'Mapped sites not loaded': 'layers.installations.feedback.notLoaded',
-  'Mapped sites loaded': 'layers.installations.feedback.loaded',
-  'Overpass rate-limited': 'layers.installations.feedback.reason.rateLimited',
-  'Overpass timed out': 'layers.installations.feedback.reason.timeout',
-  'Overpass could not complete the query':
-    'layers.installations.feedback.reason.queryFailed',
-  'Overpass temporarily unavailable':
-    'layers.installations.feedback.reason.unavailable',
+  'Retrying mapped sites…': msg('Retrying mapped sites…'),
+  'Fetching mapped sites…': msg('Fetching mapped sites…'),
+  'Zoom in to search mapped installations': msg(
+    'Zoom in to search mapped installations',
+  ),
+  'Showing cached mapped sites': msg('Showing cached mapped sites'),
+  'Mapped sites not loaded': msg('Mapped sites not loaded'),
+  'Mapped sites loaded': msg('Mapped sites loaded'),
+  'Overpass rate-limited': msg('Overpass rate-limited'),
+  'Overpass timed out': msg('Overpass timed out'),
+  'Overpass could not complete the query': msg(
+    'Overpass could not complete the query',
+  ),
+  'Overpass temporarily unavailable': msg('Overpass temporarily unavailable'),
 });

 const INSTALLATION_RETRY_IN_RE = /^(.*) — retrying in (\d+)s$/;
@@ -38,7 +39,7 @@ function localizeInstallationFeedback(message) {
  const retryIn = message.match(INSTALLATION_RETRY_IN_RE);
  if (retryIn) {
    const reasonKey = INSTALLATION_FEEDBACK_KEYS[retryIn[1]];
-    return t('layers.installations.feedback.retryIn', {
+    return t('{reason} — retrying in {seconds}s', {
      reason: reasonKey ? t(reasonKey) : retryIn[1],
      seconds: retryIn[2],
    });
@@ -46,7 +47,7 @@ function localizeInstallationFeedback(message) {
  const pending = message.match(INSTALLATION_RETRY_PENDING_RE);
  if (pending) {
    const reasonKey = INSTALLATION_FEEDBACK_KEYS[pending[1]];
-    return t('layers.installations.feedback.retryPending', {
+    return t('{reason} — retry pending', {
      reason: reasonKey ? t(reasonKey) : pending[1],
    });
  }
@@ -280,7 +281,7 @@ export function createControls({ state: layerState, services, parts, source }) {
          }),
        ),
        loadingLabel: layerState.loading
-          ? t('layers.installations.loading')
+          ? t('loading mapped installation context')
          : '',
        coverage: layerState.coverage,
        coverageLabel:
@@ -271,7 +271,7 @@ export function createRendering({
      entity.gevTrackedId = `installations:${record.id}`;
      entity.gevDisplayPosition = () => displayPosition;
      entity.gevLabelModel = {
-        title: record.name || t('layers.installations.fallbackTitle'),
+        title: record.name || t('MAPPED INSTALLATION'),
        details: [
          String(record.class || 'installation')
            .replaceAll('_', ' ')
@@ -1,5 +1,5 @@
 import * as Cesium from 'cesium';
-import { t } from '../../i18n/index.js';
+import { t, msg } from '../../i18n/index.js';
 import {
  createCyberSonarSampler,
  isCyberContactSonarActive as isCyberSonarActive,
@@ -120,10 +120,10 @@ export function createOverlays({ state: layerState, services, parts, source }) {
    const details = selected
      ? [
          siteName
-            ? t('layers.missions.launchSiteValue', {
+            ? t('LAUNCH SITE · {site}', {
                site: shortMissionLabel(siteName, 20).toUpperCase(),
              })
-            : t('layers.missions.launchSite'),
+            : t('LAUNCH SITE'),
        ]
      : [];
    return {
@@ -589,38 +589,37 @@ export function createOverlays({ state: layerState, services, parts, source }) {
    const mission = shortMissionLabel(launch.name, 22).toUpperCase();
    const siteName = compactLaunchSiteName(launch.launchSite);
    const siteCallout = siteName
-      ? t('layers.missions.launchSiteValue', {
+      ? t('LAUNCH SITE · {site}', {
          site: shortMissionLabel(siteName, 20).toUpperCase(),
        })
-      : t('layers.missions.launchSite');
+      : t('LAUNCH SITE');
    let title = mission;
    let detail = siteCallout;
    if (mode === 'countdown') {
-      title = t('layers.missions.replay.countdown', {
+      title = t('T−{time} · {mission}', {
        time: String(state.countdownSeconds).padStart(2, '0'),
        mission,
      });
-      detail = `${t('layers.missions.replay.standbyDetail')}\n${siteCallout}`;
+      detail = `${t('LAUNCH STANDBY')}\n${siteCallout}`;
    } else if (mode === 'ascent') {
      title =
        state.elapsedSinceStart < 1
-          ? t('layers.missions.replay.liftoff', { mission })
+          ? t('LIFTOFF · {mission}', { mission })
          : t(
              launch.trajectory.length > 1
-                ? 'layers.missions.replay.ascentReplay'
-                : 'layers.missions.replay.ascentEstimate',
+                ? msg('ASCENT REPLAY · {mission}')
+                : msg('ASCENT ESTIMATE · {mission}'),
              { mission },
            );
      detail = parts.policyHelpers.formatMissionEventTime(state.eventTime);
    } else if (mode === 'recovery') {
-      title = t('layers.missions.replay.recovery', { mission });
+      title = t('STAGE RE-ENTRY / RECOVERY · {mission}', { mission });
      detail = parts.policyHelpers.formatMissionEventTime(state.eventTime);
    } else if (mode === 'orbit') {
-      title = t('layers.missions.replay.orbit', { mission });
+      title = t('ORBIT REPLAY · {mission}', { mission });
      detail = parts.policyHelpers.formatMissionEventTime(state.eventTime);
    }
-    if (layerState._replayPaused)
-      title = t('layers.missions.replay.pausedPrefix', { title });
+    if (layerState._replayPaused) title = t('PAUSED · {title}', { title });
    const nextText = `${title}\n${detail}`;
    if (nextText !== layerState._replayVehicleOverlayText) {
      layerState._replayVehicleOverlayText = nextText;
@@ -220,12 +220,12 @@ export function createPanel({ state: layerState, services, parts, source }) {
          ]
            .filter(Boolean)
            .join(' · ');
-          return `<tr><td>${escapeMissionText(payload.name)}${payload.amount > 1 ? ` ×${payload.amount}` : ''}${detail ? `<small>${escapeMissionText(detail)}</small>` : ''}</td><td>${escapeMissionText(payload.type || t('layers.missions.rows.unspecified'))}</td><td>${escapeMissionText(payload.destination || launch.orbit?.name || t('layers.missions.rows.unavailable'))}</td></tr>`;
+          return `<tr><td>${escapeMissionText(payload.name)}${payload.amount > 1 ? ` ×${payload.amount}` : ''}${detail ? `<small>${escapeMissionText(detail)}</small>` : ''}</td><td>${escapeMissionText(payload.type || t('UNSPECIFIED'))}</td><td>${escapeMissionText(payload.destination || launch.orbit?.name || t('UNAVAILABLE'))}</td></tr>`;
        })
      : [];
    if (launch.payloads.length > 5) {
      payloadRows.push(
-        `<tr><td colspan="3" class="mission-table-empty">${t('layers.missions.rows.additionalPayloads', { count: launch.payloads.length - 5 })}</td></tr>`,
+        `<tr><td colspan="3" class="mission-table-empty">${t('+{count} additional payload records', { count: launch.payloads.length - 5 })}</td></tr>`,
      );
    }
    layerState._missionPanel.querySelector(
@@ -233,7 +233,7 @@ export function createPanel({ state: layerState, services, parts, source }) {
    ).innerHTML = missionTableRows(
      payloadRows,
      3,
-      t('layers.missions.rows.classified'),
+      t('PAYLOAD DATA UNAVAILABLE'),
    );
    const stageRows = launch.recoveryStages.map((stage) => {
      const endpoint = stage.endpoint;
@@ -241,21 +241,21 @@ export function createPanel({ state: layerState, services, parts, source }) {
        stage.destination ||
        (endpoint?.accuracy === 'PAD / RTLS'
          ? launch.launchSite
-          : t('layers.missions.rows.unavailable'));
+          : t('UNAVAILABLE'));
      const position = endpoint
        ? `${endpoint.lat.toFixed(2)}, ${endpoint.lon.toFixed(2)} · ${endpoint.accuracy}`
        : stage.downrangeKm > 0
-          ? t('layers.missions.rows.kmDownrange', {
+          ? t('{value} KM DOWNRANGE', {
              value: stage.downrangeKm.toLocaleString(),
            })
-          : t('layers.missions.rows.positionUnavailable');
+          : t('POSITION UNAVAILABLE');
      const stageDetail = [
        Number.isFinite(stage.flightNumber)
-          ? t('layers.missions.rows.flightNumber', {
+          ? t('FLIGHT {count}', {
              count: stage.flightNumber,
            })
          : null,
-        stage.reused ? t('layers.missions.rows.reused') : null,
+        stage.reused ? t('REUSED') : null,
        stage.recoveryType,
      ]
        .filter(Boolean)
@@ -263,7 +263,7 @@ export function createPanel({ state: layerState, services, parts, source }) {
      return `<tr><td>${escapeMissionText(stage.name)}${stageDetail ? `<small>${escapeMissionText(stageDetail)}</small>` : ''}</td><td>${escapeMissionText(stage.status)}</td><td>${escapeMissionText(destination)}<small>${escapeMissionText(position)}</small></td></tr>`;
    });
    layerState._missionPanel.querySelector('[data-mission-stages]').innerHTML =
-      missionTableRows(stageRows, 3, t('layers.missions.rows.noStageData'));
+      missionTableRows(stageRows, 3, t('NO STAGE RE-ENTRY / RECOVERY DATA'));
    const stageSection = layerState._missionPanel.querySelector(
      '[data-mission-stages-section]',
    );
@@ -291,7 +291,7 @@ export function createPanel({ state: layerState, services, parts, source }) {
      '[data-mission-roster-count]',
    );
    if (count)
-      count.textContent = t('layers.missions.roster.count', {
+      count.textContent = t('{count} / 30D', {
        count: layerState._launches.length,
      });
    if (!list) return;
@@ -301,7 +301,7 @@ export function createPanel({ state: layerState, services, parts, source }) {
      layerState._launches,
    );
    if (!entries.length) {
-      list.innerHTML = `<div class="space-mission-roster-empty">${t('layers.missions.roster.empty')}</div>`;
+      list.innerHTML = `<div class="space-mission-roster-empty">${t('NO MISSIONS AVAILABLE IN THE CURRENT 30-DAY WINDOW')}</div>`;
      restoreMissionRosterFocus(
        list,
        focusSnapshot,
@@ -314,15 +314,12 @@ export function createPanel({ state: layerState, services, parts, source }) {
    list.innerHTML = entries
      .map(({ launch, index }) => {
        const color = parts.model.missionMarkerColor(launch).toCssColorString();
-        const date =
-          launch.launchTime?.slice(0, 10) ||
-          t('layers.missions.roster.dateUnavailable');
-        const provider =
-          launch.provider || t('layers.missions.roster.unspecifiedOperator');
+        const date = launch.launchTime?.slice(0, 10) || t('DATE UNAVAILABLE');
+        const provider = launch.provider || t('UNSPECIFIED OPERATOR');
        const label = parts.overlays
          .shortMissionLabel(launch.name, 27)
          .toUpperCase();
-        return `<button type="button" class="space-mission-roster-item" data-mission-roster-index="${index}" data-mission-roster-id="${escapeMissionText(launch.id)}" aria-label="${escapeMissionText(t('layers.missions.roster.selectAria', { mission: label }))}"><span class="space-mission-roster-marker" style="--mission-roster-color:${color}" aria-hidden="true"></span><span class="space-mission-roster-copy"><strong>${escapeMissionText(label)}</strong><small>${escapeMissionText(provider)} · ${escapeMissionText(date)}</small></span><span class="space-mission-roster-chevron" aria-hidden="true">›</span></button>`;
+        return `<button type="button" class="space-mission-roster-item" data-mission-roster-index="${index}" data-mission-roster-id="${escapeMissionText(launch.id)}" aria-label="${escapeMissionText(t('Select {mission}', { mission: label }))}"><span class="space-mission-roster-marker" style="--mission-roster-color:${color}" aria-hidden="true"></span><span class="space-mission-roster-copy"><strong>${escapeMissionText(label)}</strong><small>${escapeMissionText(provider)} · ${escapeMissionText(date)}</small></span><span class="space-mission-roster-chevron" aria-hidden="true">›</span></button>`;
      })
      .join('');
    list.querySelectorAll('[data-mission-roster-index]').forEach((button) => {
@@ -379,7 +376,7 @@ export function createPanel({ state: layerState, services, parts, source }) {
    setMissionPanelField(
      '[data-mission-distance]',
      Number.isFinite(altitudeM)
-        ? t('layers.missions.telemetry.km', {
+        ? t('{value} KM', {
            value: Math.max(0, altitudeM / 1000).toLocaleString(undefined, {
              maximumFractionDigits: 0,
            }),
@@ -392,7 +389,7 @@ export function createPanel({ state: layerState, services, parts, source }) {
    setMissionPanelField(
      '[data-mission-speed]',
      Number.isFinite(speedMps)
-        ? t('layers.missions.telemetry.kmPerSecond', {
+        ? t('{value} KM/S', {
            value: (speedMps / 1000).toLocaleString(undefined, {
              minimumFractionDigits: 2,
              maximumFractionDigits: 2,
@@ -473,16 +470,16 @@ export function createPanel({ state: layerState, services, parts, source }) {
    layerState._missionPanel.className = 'context-space-mission-detail';
    layerState._missionPanel.setAttribute(
      'aria-label',
-      t('layers.missions.panel.selectedHeader'),
+      t('SELECTED SPACE MISSION'),
    );
-    layerState._missionPanel.innerHTML = `<div class="space-mission-view-header"><span>${t('layers.missions.panel.selectedHeader')}</span><button type="button" data-mission-close title="${t('layers.missions.panel.showAllTitle')}" aria-label="${t('layers.missions.panel.deselectAria')}">×</button></div><div class="space-mission-detail"><strong data-mission-title>${t('layers.missions.panel.mission')}</strong><span data-mission-field data-mission-provider></span><span data-mission-field>${t('layers.missions.panel.status')}<b data-mission-status></b></span><span data-mission-field>${t('layers.missions.panel.launchSite')}<b data-mission-site></b></span><span data-mission-field>${t('layers.missions.panel.launchTime')}<b data-mission-time></b></span><span data-mission-field>${t('layers.missions.panel.orbit')}<b data-mission-orbit></b></span><span>${t('layers.missions.panel.ascentPath')}<b data-mission-ascent-source></b></span><span data-mission-field>${t('layers.missions.panel.distance')}<b data-mission-distance></b></span><span data-mission-field>${t('layers.missions.panel.speed')}<b data-mission-speed></b></span></div><section class="mission-data-section"><h4>${t('layers.missions.panel.payload')}</h4><div class="mission-table-scroll"><table class="mission-data-table"><thead><tr><th>${t('layers.missions.panel.colName')}</th><th>${t('layers.missions.panel.colType')}</th><th>${t('layers.missions.panel.colDestination')}</th></tr></thead><tbody data-mission-payloads></tbody></table></div></section><section class="mission-data-section" data-mission-stages-section><h4>${t('layers.missions.panel.stagesSection')}</h4><div class="mission-table-scroll"><table class="mission-data-table"><thead><tr><th>${t('layers.missions.panel.colStage')}</th><th>${t('layers.missions.panel.colStatus')}</th><th>${t('layers.missions.panel.colFinalPosition')}</th></tr></thead><tbody data-mission-stages></tbody></table></div></section><div class="mission-replay-speed-control"><div class="mission-replay-speed-header"><label for="space-mission-replay-speed">${t('layers.missions.replay.speedLabel')}</label><output class="gev-slider-value" for="space-mission-replay-speed" data-mission-replay-speed-output>1×</output></div><input id="space-mission-replay-speed" class="gev-quantitative-slider" type="range" min="0.25" max="4" step="0.25" value="1" data-mission-replay-speed aria-label="${t('layers.missions.replay.speedAria')}"><div class="mission-replay-speed-scale" aria-hidden="true"><span>0.25×</span><span>1×</span><span>4×</span></div></div><div class="mission-action-row"><button type="button" class="mission-focus-button" data-mission-focus>${t('layers.missions.panel.focus')}</button><button type="button" class="mission-replay-button" data-mission-replay aria-pressed="false">${t('layers.missions.replay.start')}</button></div><div class="space-mission-nav"><button type="button" class="mission-nav-button" data-mission-prev title="${t('layers.missions.panel.prevTitle')}"><span aria-hidden="true">‹</span> ${t('layers.missions.panel.prev')}</button><span class="mission-nav-index" data-mission-index>—</span><button type="button" class="mission-nav-button" data-mission-next title="${t('layers.missions.panel.nextTitle')}">${t('layers.missions.panel.next')} <span aria-hidden="true">›</span></button></div><button type="button" class="panel-layer-toggle" data-mission-show-all>${t('layers.missions.panel.showAll')}</button>`;
+    layerState._missionPanel.innerHTML = `<div class="space-mission-view-header"><span>${t('SELECTED SPACE MISSION')}</span><button type="button" data-mission-close title="${t('Show all missions')}" aria-label="${t('Deselect mission')}">×</button></div><div class="space-mission-detail"><strong data-mission-title>${t('MISSION')}</strong><span data-mission-field data-mission-provider></span><span data-mission-field>${t('STATUS · ')}<b data-mission-status></b></span><span data-mission-field>${t('LAUNCH SITE · ')}<b data-mission-site></b></span><span data-mission-field>${t('LAUNCH TIME · ')}<b data-mission-time></b></span><span data-mission-field>${t('ORBIT · ')}<b data-mission-orbit></b></span><span>${t('ASCENT PATH · ')}<b data-mission-ascent-source></b></span><span data-mission-field>${t('CURRENT DISTANCE FROM EARTH · ')}<b data-mission-distance></b></span><span data-mission-field>${t('SATELLITE SPEED · ')}<b data-mission-speed></b></span></div><section class="mission-data-section"><h4>${t('PAYLOAD')}</h4><div class="mission-table-scroll"><table class="mission-data-table"><thead><tr><th>${t('NAME')}</th><th>${t('TYPE')}</th><th>${t('DESTINATION')}</th></tr></thead><tbody data-mission-payloads></tbody></table></div></section><section class="mission-data-section" data-mission-stages-section><h4>${t('STAGE / RE-ENTRY / RECOVERY')}</h4><div class="mission-table-scroll"><table class="mission-data-table"><thead><tr><th>${t('STAGE')}</th><th>${t('STATUS')}</th><th>${t('FINAL POSITION')}</th></tr></thead><tbody data-mission-stages></tbody></table></div></section><div class="mission-replay-speed-control"><div class="mission-replay-speed-header"><label for="space-mission-replay-speed">${t('REPLAY SPEED')}</label><output class="gev-slider-value" for="space-mission-replay-speed" data-mission-replay-speed-output>1×</output></div><input id="space-mission-replay-speed" class="gev-quantitative-slider" type="range" min="0.25" max="4" step="0.25" value="1" data-mission-replay-speed aria-label="${t('Replay speed multiplier')}"><div class="mission-replay-speed-scale" aria-hidden="true"><span>0.25×</span><span>1×</span><span>4×</span></div></div><div class="mission-action-row"><button type="button" class="mission-focus-button" data-mission-focus>${t('FOCUS')}</button><button type="button" class="mission-replay-button" data-mission-replay aria-pressed="false">${t('REPLAY ASCENT')}</button></div><div class="space-mission-nav"><button type="button" class="mission-nav-button" data-mission-prev title="${t('Previous mission')}"><span aria-hidden="true">‹</span> ${t('PREV')}</button><span class="mission-nav-index" data-mission-index>—</span><button type="button" class="mission-nav-button" data-mission-next title="${t('Next mission')}">${t('NEXT')} <span aria-hidden="true">›</span></button></div><button type="button" class="panel-layer-toggle" data-mission-show-all>${t('SHOW ALL / DESELECT')}</button>`;
    layerState._missionPanel
      .querySelector('.mission-action-row')
      .insertAdjacentHTML(
        'beforeend',
        `<div class="mission-replay-transport" data-mission-replay-transport hidden>
-      <button type="button" data-mission-replay-toggle title="${t('layers.missions.replay.pause')}" aria-label="${t('layers.missions.replay.pause')}">Ⅱ</button>
-      <button type="button" class="cancel" data-mission-replay-cancel title="${t('layers.missions.replay.cancel')}" aria-label="${t('layers.missions.replay.cancel')}"><span aria-hidden="true">×</span></button>
+      <button type="button" data-mission-replay-toggle title="${t('Pause replay')}" aria-label="${t('Pause replay')}">Ⅱ</button>
+      <button type="button" class="cancel" data-mission-replay-cancel title="${t('Cancel replay')}" aria-label="${t('Cancel replay')}"><span aria-hidden="true">×</span></button>
    </div>`,
      );
    host.appendChild(layerState._missionPanel);
@@ -522,7 +522,7 @@ export function createPaths({ state: layerState, services, parts, source }) {
    return {
      lat: Cesium.Math.toDegrees(lat),
      lon: Cesium.Math.toDegrees(Cesium.Math.negativePiToPi(lon)),
-      accuracy: t('layers.missions.estDownrange'),
+      accuracy: t('EST. DOWNRANGE'),
    };
  }

@@ -77,14 +77,14 @@ export function createPolicyHelpers({
      : 0;
    return {
      orbit: orbitName
-        ? `${orbitAllowed ? '' : t('layers.missions.rows.plannedPrefix')}${orbitName}`
+        ? `${orbitAllowed ? '' : t('PLANNED · ')}${orbitName}`
        : null,
      ascent:
        suppliedTrajectoryPoints > 1
-          ? t('layers.missions.rows.suppliedTrajectory')
+          ? t('SUPPLIED TRAJECTORY POINTS')
          : replayAvailable
-            ? t('layers.missions.rows.reconstructedEstimate')
-            : t('layers.missions.rows.unavailable'),
+            ? t('RECONSTRUCTED ESTIMATE')
+            : t('UNAVAILABLE'),
      replayAvailable: Boolean(replayAvailable),
    };
  }
@@ -198,7 +198,7 @@ export function createPolicyHelpers({
  function formatMissionEventTime(launchTime) {
    const date = new Date(launchTime);
    if (!launchTime || !Number.isFinite(date.getTime()))
-      return t('layers.missions.rows.unavailable');
+      return t('UNAVAILABLE');
    return `${date.toISOString().slice(0, 10)}\n${date.toISOString().slice(11, 19)} UTC`;
  }

@@ -201,10 +201,10 @@ export function createReplay({ state: layerState, services, parts, source }) {
    if (speedControl) speedControl.hidden = !replayAvailable;
    button.hidden = active || !replayAvailable;
    button.disabled = !replayAvailable;
-    button.textContent = t('layers.missions.replay.start');
+    button.textContent = t('REPLAY ASCENT');
    button.classList.remove('active');
    button.setAttribute('aria-pressed', String(active));
-    button.title = t('layers.missions.replay.startTitle');
+    button.title = t('Replay the estimated ascent with a following camera');
    if (transport) {
      transport.hidden = !active;
      transport.classList.toggle(
@@ -219,13 +219,11 @@ export function createReplay({ state: layerState, services, parts, source }) {
        toggleButton.textContent = layerState._replayPaused ? '▶' : 'Ⅱ';
        toggleButton.setAttribute(
          'aria-label',
-          layerState._replayPaused
-            ? t('layers.missions.replay.resume')
-            : t('layers.missions.replay.pause'),
+          layerState._replayPaused ? t('Resume replay') : t('Pause replay'),
        );
        toggleButton.title = layerState._replayPaused
-          ? t('layers.missions.replay.resume')
-          : t('layers.missions.replay.pause');
+          ? t('Resume replay')
+          : t('Pause replay');
      }
    }
  }
@@ -236,19 +234,19 @@ export function createReplay({ state: layerState, services, parts, source }) {
    );
    if (!transport || !layerState._replayCameraLaunchId) return;
    const phase = state.countdownActive
-      ? t('layers.missions.replay.phaseCountdown', {
+      ? t('T minus {seconds}', {
          seconds: state.countdownSeconds,
        })
      : state.preCountdownActive
-        ? t('layers.missions.replay.phasePreparing')
+        ? t('Preparing launch site')
        : state.elapsedSinceStart < 1
-          ? t('layers.missions.replay.phaseLiftoff')
+          ? t('Liftoff')
          : state.ascending
-            ? t('layers.missions.replay.phaseAscent')
-            : t('layers.missions.replay.phaseOrbit');
+            ? t('Ascent replay')
+            : t('Orbit replay');
    transport.setAttribute(
      'aria-label',
-      `${phase}${layerState._replayPaused ? t('layers.missions.replay.pausedSuffix') : ''}`,
+      `${phase}${layerState._replayPaused ? t(', paused') : ''}`,
    );
  }

@@ -55,7 +55,7 @@ export function createQueries({
   */

  function _formatAltitude(altitudeFt) {
-    if (!Number.isFinite(altitudeFt)) return t('layers.readout.altUnknown');
+    if (!Number.isFinite(altitudeFt)) return t('Alt unknown');
    return `${Math.round(altitudeFt)} ft`;
  }

@@ -220,7 +220,7 @@ export function createTracking({
  function _buildTrackedLabel(info, icao24) {
    const stale =
      flightState.records.missingPolls.get(icao24) || flightState.feed._backoff
-        ? ` · ${t('layers.status.stale')}`
+        ? ` · ${t('STALE')}`
        : '';
    const callsign =
      (parts.queries._toCleanText(info?.callsign) ||
@@ -230,14 +230,12 @@ export function createTracking({
    // what the Easter egg replaces the real type with.
    const type = tr3bTypeLabel(
      icao24,
-      parts.queries._toCleanText(info?.type) || t('layers.readout.typeUnknown'),
+      parts.queries._toCleanText(info?.type) || t('Type unknown'),
    );
    const registration =
-      parts.queries._toCleanText(info?.registration) ||
-      t('layers.readout.regUnknown');
+      parts.queries._toCleanText(info?.registration) || t('Reg unknown');
    const operator =
-      parts.queries._toCleanText(info?.operator) ||
-      t('layers.readout.operatorUnknown');
+      parts.queries._toCleanText(info?.operator) || t('Operator unknown');
    const altitude = parts.queries._formatAltitude(info?.altitudeFt);
    const speedKt = info?.speedMps ? Math.round(info.speedMps * 1.944) : null;
    const tail = speedKt ? `${altitude} · ${speedKt} kt` : altitude;
@@ -70,20 +70,20 @@ export function createCategories({
  function buildRadioCategories(stations) {
    const rows = Array.isArray(stations) ? stations : [];
    const categories = [
-      { id: 'all', label: t('layers.radio.filterAll') },
-      { id: 'news', label: t('layers.radio.category.news') },
-      { id: 'talk', label: t('layers.radio.category.talk') },
-      { id: 'weather', label: t('layers.radio.category.weather') },
-      { id: 'public-safety', label: t('layers.radio.category.publicSafety') },
+      { id: 'all', label: t('All') },
+      { id: 'news', label: t('News') },
+      { id: 'talk', label: t('Talk') },
+      { id: 'weather', label: t('Weather / Emergency') },
+      { id: 'public-safety', label: t('Public Safety') },
      {
        id: 'aviation-marine',
-        label: t('layers.radio.category.aviationMarine'),
+        label: t('Aviation / Marine'),
      },
      {
        id: 'traffic-transit',
-        label: t('layers.radio.category.trafficTransit'),
+        label: t('Traffic / Transit'),
      },
-      { id: 'music', label: t('layers.radio.category.music') },
+      { id: 'music', label: t('Music') },
    ];

    for (const [genre, label] of MUSIC_GENRES) {
@@ -92,7 +92,7 @@ export function createCategories({
        categories.push({ id, label });
      }
    }
-    categories.push({ id: 'other', label: t('layers.radio.category.other') });
+    categories.push({ id: 'other', label: t('Other') });
    return categories.map((category) => ({
      ...category,
      color: parts.model.radioCategoryColor(category.id),
@@ -494,22 +494,27 @@ export function createControls({ state: layerState, services, parts, source }) {
      const active =
        layerState._params.catalog === 'dense' &&
        layerState._denseStatus === 'ready';
-      let title = t('layers.satellites.denseTitleAdd');
-      if (loading) title = t('layers.satellites.denseTitleLoading');
+      let title = t(
+        'Add the full Starlink broadband shell (thousands of extra points)',
+      );
+      if (loading) title = t('Loading the Starlink shell…');
      else if (failed)
-        title = t('layers.satellites.denseTitleFailed', {
-          detail: layerState._denseError || t('layers.satellites.loadFailed'),
+        title = t('Starlink {detail} — click to retry', {
+          detail: layerState._denseError || t('load failed'),
        });
-      else if (active) title = t('layers.satellites.denseTitleActive');
+      else if (active)
+        title = t(
+          'Showing the full Starlink shell — click for the core catalog only',
+        );
      return {
        chips: [
          {
            id: 'catalog',
            label: loading
-              ? t('layers.satellites.denseChipLoading')
+              ? t('DENSE ···')
              : failed
-                ? t('layers.satellites.denseChipFailed')
-                : t('layers.satellites.denseChip'),
+                ? t('DENSE ✕')
+                : t('DENSE'),
            active,
            busy: loading,
            disabled: loading,
@@ -12,7 +12,7 @@ export function createIngestion({ state, parts, source }) {

    state._loading = true;
    state._error = null;
-    state._loadingLabel = t('layers.meta.loading');
+    state._loadingLabel = t('loading...');
    // Ownership token (the militaryAwareness activationId pattern): a
    // disable/abort followed by a fresh enable starts a NEWER load while this
    // one is still settling. The stale load must bail after every await and
@@ -261,12 +261,12 @@ export function createModel({ state: layerState, services, parts, source }) {
        mode,
        error: null,
        loadingLabel: fetching
-          ? t('layers.traffic.syncingRoads', { source: roadSource })
+          ? t('Syncing flow · Roads: {source}', { source: roadSource })
          : coveragePct > 0
-            ? t('layers.traffic.liveRoadsFlowHidden', {
+            ? t('LIVE · Roads: {source} · Roads without flow hidden', {
                source: roadSource,
              })
-            : t('layers.traffic.liveRoadsNoFlowInView', {
+            : t('LIVE · Roads: {source} · No flow roads in view', {
                source: roadSource,
              }),
      };
@@ -276,13 +276,13 @@ export function createModel({ state: layerState, services, parts, source }) {
        mode,
        error: null,
        loadingLabel: fetching
-          ? t('layers.traffic.syncingRoads', { source: roadSource })
+          ? t('Syncing flow · Roads: {source}', { source: roadSource })
          : coveragePct > 0
-            ? t('layers.traffic.roadsFlowLive', {
+            ? t('LIVE · Roads: {source} · Flow {percent}%', {
                source: roadSource,
                percent: coveragePct,
              })
-            : t('layers.traffic.roadsFlowSimulated', {
+            : t('SIMULATED · Roads: {source} · Flow {percent}%', {
                source: roadSource,
                percent: coveragePct,
              }),
@@ -293,16 +293,24 @@ export function createModel({ state: layerState, services, parts, source }) {
        mode,
        error: null,
        loadingLabel: fetching
-          ? t('layers.traffic.loadingSyncing')
+          ? t(
+              'Syncing flow · Roads: OpenStreetMap · Flow: TomTom · Unmatched: simulated',
+            )
          : coveragePct > 0
            ? coveragePct < 100
-              ? t('layers.traffic.liveCoverageUnmatched', {
-                  percent: coveragePct,
-                })
-              : t('layers.traffic.liveCoverage', {
-                  percent: coveragePct,
-                })
-            : t('layers.traffic.simulatedNoMatches'),
+              ? t(
+                  'LIVE · Roads: OpenStreetMap · Flow: TomTom · {percent}% cov · Unmatched: simulated',
+                  {
+                    percent: coveragePct,
+                  },
+                )
+              : t(
+                  'LIVE · Roads: OpenStreetMap · Flow: TomTom · {percent}% cov',
+                  {
+                    percent: coveragePct,
+                  },
+                )
+            : t('SIMULATED · Roads: OpenStreetMap · Flow: TomTom (no matches)'),
      };
    }
    // Keyless simulation — one terse line that names the mode and the remedy
@@ -312,8 +320,8 @@ export function createModel({ state: layerState, services, parts, source }) {
      mode,
      error: null,
      loadingLabel: statusUnavailable
-        ? t('layers.traffic.simUnavailable')
-        : t('layers.traffic.simKeyless'),
+        ? t('SIMULATED — traffic service unreachable')
+        : t('SIMULATED — add TomTom key for live'),
    };
  }

@@ -21,13 +21,13 @@ export function createCards({
    const stale = (record.missedRefreshes || 0) > 0;
    el.classList.add('active');
    el.textContent = [
-      t('layers.vessel.hudName', { name: trimHudValue(record.name, 32) }),
-      t('layers.vessel.hudTypeLine', {
-        type: trimHudValue(record.type || t('layers.vessel.fallback'), 24),
+      t('AIS: {name}', { name: trimHudValue(record.name, 32) }),
+      t('{type}  SPD: {speed}  HDG: {heading}', {
+        type: trimHudValue(record.type || t('VESSEL'), 24),
        speed: formatSpeed(record.speed),
        heading: formatHeading(record.heading ?? record.course),
      }),
-      `MMSI: ${record.mmsi || '--'}  ${formatPositionTime(record)}${stale ? `  · ${t('layers.status.stale')}` : ''}`,
+      `MMSI: ${record.mmsi || '--'}  ${formatPositionTime(record)}${stale ? `  · ${t('STALE')}` : ''}`,
    ].join('\n');
  }

@@ -35,7 +35,7 @@ export function createCards({
    const el = document.getElementById('hud-ais-vessel');
    if (!el) return;
    el.classList.remove('active');
-    el.textContent = t('layers.vessel.hudIdle');
+    el.textContent = t('AIS: --');
  }

  function trimHudValue(value, maxLength) {
@@ -90,7 +90,7 @@ export function createCards({
    const direction = record.heading ?? record.course;
    const details = [
      [
-        vesselTypeShort(record) || t('layers.vessel.fallback'),
+        vesselTypeShort(record) || t('VESSEL'),
        formatSpeed(record.speed),
        Number.isFinite(direction) ? `${Math.round(direction)}°` : '--°',
      ].join(' · '),
@@ -99,7 +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 ? ` · ${t('layers.status.stale')}` : ''}`,
+      `MMSI ${record.mmsi || '--'} · ${formatPositionTime(record)}${stale ? ` · ${t('STALE')}` : ''}`,
    );
    return {
      id: vesselOverlayEntryId(record),
@@ -156,7 +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}` : t('layers.vessel.fallback');
+    return record.mmsi ? `MMSI ${record.mmsi}` : t('VESSEL');
  }

  function formatSpeed(speed) {
@@ -168,10 +168,10 @@ export function createCards({
  }

  function formatPositionTime(record) {
-    if (!record.lastPositionUtc) return t('layers.vessel.posLive');
+    if (!record.lastPositionUtc) return t('POS: LIVE');
    const date = new Date(record.lastPositionUtc);
-    if (Number.isNaN(date.getTime())) return t('layers.vessel.posLive');
-    return t('layers.vessel.posAt', { time: date.toISOString().slice(11, 19) });
+    if (Number.isNaN(date.getTime())) return t('POS: LIVE');
+    return t('POS: {time}Z', { time: date.toISOString().slice(11, 19) });
  }
  return {
    updateSelectedVesselHud,
@@ -38,7 +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 = t('layers.vessel.awaitingFirstPosition');
+    state.feed.loadingLabel = t('awaiting first AIS position…');
    scheduleFirstConnectExpiry(sessionId, AIS_FIRST_CONNECT_GRACE_MS);
  }

@@ -60,8 +60,8 @@ export function createLifecycle({
      state.feed.firstConnectPhase = 'unavailable';
      state.feed.loadingLabel = '';
      state.feed.error = state.feed.lastMessageAt
-        ? t('layers.vessel.awaitingPositions')
-        : t('layers.vessel.awaitingFirstMessage');
+        ? t('awaiting usable AIS positions…')
+        : t('awaiting first AIS message…');
      state.feed.stale = state.feed.count > 0;
    }, delayMs);
  }
@@ -1,14 +1,14 @@
 import * as Cesium from 'cesium';
-import { t } from '../../i18n/index.js';
+import { t, msg } 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',
+  'refreshing...': msg('refreshing...'),
+  'loading...': msg('loading...'),
+  'awaiting first AIS position…': msg('awaiting first AIS position…'),
 });

 function localizeFeedLabel(raw) {
@@ -98,8 +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
-        ? t('layers.vessel.awaitingPositions')
-        : t('layers.vessel.awaitingFirstMessage');
+        ? t('awaiting usable AIS positions…')
+        : t('awaiting first AIS message…');
    }
    if (!status) return null;
    const detail =
@@ -158,9 +158,7 @@ export function createQueries({
      error: emptyCoverage
        ? null
        : deriveAisFeedError(payload, acceptedRowCount) ||
-          (acceptedRowCount === 0
-            ? t('layers.vessel.awaitingPositions')
-            : null),
+          (acceptedRowCount === 0 ? t('awaiting usable AIS positions…') : null),
    };
  }

@@ -532,7 +530,7 @@ export function createQueries({
        lastUpdate: state.feed.lastUpdate,
        loading: state.feed.loading || waitingForFirstPosition,
        loadingLabel: waitingForFirstPosition
-          ? t('layers.vessel.awaitingFirstPosition')
+          ? t('awaiting first AIS position…')
          : localizeFeedLabel(state.feed.loadingLabel),
        error: state.feed.error,
        stale: state.feed.stale,