feat(i18n): locale core + English catalogs + parity gates

Add the i18n foundation: src/i18n/locale.js (locale resolution with a
configurable GEV_DEFAULT_LOCALE / GEV_SECONDARY_LOCALE pair, guarded
preference storage, one-shot ?lang= override, <html lang>/<html dir>
metadata) and src/i18n/index.js (catalog registry, t(), Intl formatters,
applyDocumentTranslations, persistLocaleAndReload).

English is the only shipped locale in this PR: the four en catalogs
(shell/cockpit/layers/setup) are the reference and the always-shipped
fallback, the built-in pair degenerates to en-only, and English output
is byte-identical to the strings these replace.

Parity gates land with the core (catalog key/placeholder/plural-shape
parity, markup coverage of every data-i18n* attribute, repair-pass
anchors pinning en byte-identity); additional locales ship as stacked
follow-up PRs through the recipe in docs/TRANSLATORS.md.

Rebased onto current main: the client defines live in build/vite.js /
server/standalone/vite.config.js as before.

src/i18n/locales/en/cockpit.js

@@ -0,0 +1,560 @@
+// English catalog — cockpit namespace (phase-1 seed).
+//
+// Owns the first-person cockpit HUD, its Contact summary, and the briefing
+// carousel. Keys are namespace-relative; the registry prefixes them with
+// `cockpit.`.
+export const NAMESPACE = 'cockpit';
+
+export default {
+  // index.html #cockpit-hud section aria-label
+  'hud.sectionLabel': 'Aircraft cockpit view',
+  // index.html #map-view-switch button label
+  'exit.label': 'EXIT COCKPIT',
+  // index.html .cockpit-readout-label
+  'readout.groundSpeed': 'GROUND SPEED',
+  'readout.altitude': 'ALTITUDE',
+  // index.html .cockpit-context-kicker / #cockpit-context-subject (initial)
+  'context.kicker': 'CONTACT',
+  'context.subjectWindow': 'CONTACTS · 250 KM',
+  // index.html #cockpit-brief-kicker / #cockpit-brief-subtitle (initial)
+  'brief.kicker': 'LIVE SIGNALS',
+  'brief.subtitle': 'OBSERVED / MAPPED PINGS',
+  // index.html #cockpit-vision-current small label
+  'vision.current': 'CURRENT',
+  // index.html #cockpit-radio-station (initial)
+  'radio.station.ready': 'READY',
+
+  // ── Phase-2 static markup extraction (index.html), appended ──────────────
+  // The shell worker owns ALL index.html static markup in phase 2
+  // (docs/TRANSLATORS.md cross-surface rule); these keys land here because
+  // src/ui.js and src/hud.js own the surfaces' runtime half in phase 3.
+
+  // index.html #style-indicator / #clean-view-exit (visual-style chrome)
+  'presets.activeStyleLabel': 'ACTIVE STYLE',
+  'display.cleanViewExitTitle': 'Return UI controls',
+  'display.cleanViewExitLabel': 'EXIT CLEAN VIEW',
+
+  // index.html control panel — Visual Presets dock tray
+  'presets.toggleAriaLabel': 'Expand Visual Presets',
+  // Key-only: the .panel-title node shares its element with the dock-label-icon
+  // span, so a data-i18n write would wipe the icon; phase 3 wires this via t().
+  'presets.title': 'VISUAL PRESETS',
+  'presets.pinAriaLabel': 'Pin visual presets',
+  'presets.pinTitle': 'Keep visual presets open',
+  'presets.styleNormalTitle': 'Show the globe without a visual filter.',
+  'presets.styleNormalLabel': 'Normal',
+  'presets.styleCrtTitle':
+    'Emulate a green phosphor CRT with scanlines and screen curvature.',
+  'presets.styleCrtLabel': 'CRT',
+  'presets.styleNvgTitle':
+    'Simulate night-vision goggles with green intensification and a tube vignette.',
+  'presets.styleNvgLabel': 'NVG',
+  'presets.styleFlirTitle':
+    'Simulate FLIR-style thermal contrast. Turn up Ironbow for color.',
+  'presets.styleFlirLabel': 'FLIR',
+  'presets.styleAnimeTitle':
+    'Apply bright cel-shaded color and illustrated outlines.',
+  'presets.styleAnimeLabel': 'Anime',
+  'presets.styleNoirTitle': 'Apply high-contrast monochrome film-noir grading.',
+  'presets.styleNoirLabel': 'Noir',
+  'presets.styleSnowTitle':
+    'Add a cold, snowy whiteout treatment to the scene.',
+  'presets.styleSnowLabel': 'Snow',
+  // Key-only: the static span text is pinned verbatim by mapStackChips.test.mjs
+  // (id="map-source-label">MAP SOURCE<), so no attribute can be added without
+  // touching that test; phase 3 owns the swap.
+  'presets.mapSourceLabel': 'MAP SOURCE',
+  // Key-only: the chip-row tag is pinned literally by mapStackChips.test.mjs.
+  'presets.mapSourceChipsAriaLabel': 'Map source',
+  'presets.miniStyleLabel': 'Style',
+
+  // index.html #pp-toggles DISPLAY rail
+  // Key-only: .pp-header-label text is pinned verbatim by panelStackLayout.test.mjs.
+  'display.title': 'DISPLAY',
+  'display.collapseTitle': 'Collapse panel',
+  'display.hudToggleTitle': 'Intelligence HUD (H)',
+  'display.hudLayoutLabel': 'Layout',
+  'display.hudLayoutAriaLabel': 'HUD layout',
+  'display.hudLayoutTactical': 'Tactical',
+  'display.hudLayoutOperator': 'Operator',
+  'display.hudLayoutMinimal': 'Minimal',
+  'display.detectionToggleTitle': 'Detection Overlay (D)',
+  'display.detectionAriaLabel': 'Detection overlay',
+  'display.detectionLabel': 'DETECT',
+  'display.densityLabel': 'Density',
+  'display.densityAriaLabel': 'Detection label density',
+  'display.allocationLabel': 'Allocation',
+  'display.allocationAriaLabel': 'Detection label allocation',
+  'display.allocationElastic': 'Elastic',
+  'display.allocationWeighted': 'Weighted',
+  'display.fadeLabel': 'Fade',
+  'display.fadeAriaLabel': 'Detection fade distance',
+  'display.fadeTitle':
+    'World-overlay fade distance outside the keyhole as a percentage of its radius',
+  'display.outsideLabel': 'Outside',
+  'display.outsideAriaLabel': 'Detection opacity outside the keyhole',
+  'display.outsideTitle':
+    'World-overlay label and card opacity beyond the fade distance',
+  'display.parametersTitle': 'PARAMETERS',
+  'display.parametersCollapseTitle': 'Collapse panel',
+  'display.modelsToggleTitle':
+    '3D aircraft — flat icons zoomed out, 3D models up close',
+  'display.modelsLabel': 'Models',
+  'display.modelsCoverageAriaLabel': '3D model coverage',
+  'display.modelsModeProximity': 'Proximity',
+  'display.modelsModeAll': 'All',
+  'display.scopeToggleTitle': 'Scope — the circular viewport mask',
+  'display.scopeLabel': 'Scope',
+  'display.featherLabel': 'Feather',
+  'display.featherTitle':
+    'Scope edge feather as a percentage of the keyhole radius',
+  'display.celestialToggleTitle': 'Celestial ring — reveal the full globe',
+  'display.celestialLabel': 'Celestial',
+  'display.cleanViewToggleTitle': 'Hide UI chrome',
+  'display.cleanViewLabel': 'Clean UI',
+  'display.bloomToggleTitle': 'Bloom / Glow',
+  'display.bloomLabel': 'Bloom',
+  'display.sharpenToggleTitle': 'Sharpening',
+  'display.sharpenLabel': 'Sharpen',
+
+  // index.html location bar (dock locations tray; ui.js owns the runtime half)
+  // Key-only: .location-toolbar-label shares its element with dock-label-icon.
+  'location.toolbarLabel': 'LOCATION',
+  'location.collapseTitle': 'Collapse panel',
+  'location.pinAriaLabel': 'Pin location tray',
+  'location.pinTitle': 'Keep location tray open',
+  // Initial mini-status values; ui.js rewrites both once a place resolves.
+  'location.miniCityInitial': '📍 Location: --',
+  'location.miniPoiInitial': 'Landmark: --',
+  'location.searchToggleTitle': 'Search any location',
+  'location.searchPlaceholder': 'Search any location...',
+
+  // index.html cockpit HUD statics
+  'hud.level': 'LEVEL',
+  'hud.routeDirectionAriaLabel': 'Estimated destination direction',
+  // Initial idle readout; ui.js rewrites it with a live bearing.
+  'hud.routeDirectionIdle': 'DEST ---°',
+  'hud.visorPlane': 'OPTICAL PLANE · 01',
+  'hud.visorLock': 'VISOR LOCK · ACTIVE',
+  'hud.firstPerson': 'FIRST PERSON',
+  // Initial meta line; ui.js rewrites it from live track state.
+  'hud.aircraftMetaInitial': 'LIVE TRACK · COURSE ALIGNED',
+  'hud.visionGroupAriaLabel': 'Cockpit vision style',
+  'hud.compassAriaLabel': 'Current aircraft heading',
+  'readout.rimGroundSpeed': 'GROUND SPEED · KTS',
+  'readout.rimAltitude': 'ALTITUDE · FT',
+
+  // index.html cockpit vision controls
+  'vision.previousLabel': 'PREV',
+  'vision.previousAriaLabel': 'Previous cockpit vision style',
+  'vision.previousTitle': 'Previous vision style',
+  // The NORMAL token inside these two is the style name; phase 3 splits the
+  // dynamic token out when the runtime half is extracted.
+  'vision.currentAriaLabel':
+    'Current cockpit vision style: NORMAL. Activate for next style.',
+  'vision.currentTitle': 'Current style: NORMAL — click for next',
+  'vision.nextLabel': 'NEXT',
+  'vision.nextAriaLabel': 'Next cockpit vision style',
+  'vision.nextTitle': 'Next vision style',
+
+  // index.html view switcher
+  'exit.navAriaLabel': 'View switcher',
+  'exit.resetAriaLabel': 'Reset cockpit to full globe view',
+  'exit.resetTitle': 'Exit cockpit and return to full globe view',
+  'exit.resetLabel': 'RESET',
+  'exit.ariaLabel': 'Exit cockpit view',
+  'exit.title': 'Exit cockpit view',
+
+  // index.html cockpit route card
+  'route.cardAriaLabel': 'Estimated flight plan',
+  'route.kicker': 'ESTIMATED FLIGHT PLAN',
+  'route.statusUnavailable': 'ROUTE DATA UNAVAILABLE',
+  'route.fromLabel': 'FROM',
+  'route.toLabel': 'TO',
+  'route.unknownEndpoint': 'UNKNOWN',
+
+  // index.html cockpit briefing carousel
+  // (brief.kicker 'LIVE SIGNALS' is seeded above but is KEY-ONLY: #cockpit-brief-kicker
+  // shares its element with the live-dot <i>, so no data-i18n attribute can target it.)
+  'brief.carouselAriaLabel': 'Cockpit briefing carousel',
+  'brief.actionsAriaLabel': 'Cockpit briefing controls',
+  'brief.previousAriaLabel': 'Previous briefing page',
+  'brief.previousTitle': 'Previous briefing page',
+  'brief.nextAriaLabel': 'Next briefing page',
+  'brief.nextTitle': 'Next briefing page',
+  // Title is static prose; the visible label + aria-label are CYCLE ON/OFF
+  // states that belong to the phase-3 runtime extraction.
+  'brief.autoTitle':
+    'Cycle briefing pages automatically every 9 seconds (Signals → News → Local). Pauses while you hover or focus the panel. Live signal data refreshes continuously either way.',
+  'brief.collapseAriaLabel': 'Collapse cockpit briefing panel',
+  'brief.collapseTitle': 'Collapse briefing panel',
+  'brief.signalsAriaLabel': 'Live signals',
+  'brief.newsAriaLabel': 'Latest regional news',
+  'brief.localAriaLabel': 'Location-based information',
+  'brief.newsAcquiring': 'ACQUIRING REGIONAL NEWS',
+  'brief.localResolving': 'RESOLVING REGION',
+  'brief.labelTemp': 'TEMP',
+  'brief.labelWind': 'WIND',
+  'brief.labelSky': 'SKY',
+  'brief.labelPrecip': 'PRECIP',
+  'brief.sourceNote': 'SOURCE-BACKED EVENTS · NO SYNTHETIC NEWS',
+  'brief.tabSignalsAriaLabel': 'Show Live Signals',
+  'brief.tabNewsAriaLabel': 'Show Regional News',
+  'brief.tabLocalAriaLabel': 'Show Local Info',
+
+  // index.html cockpit context panel (right-rail Global Context included)
+  'context.panelAriaLabel': 'Contact cockpit summary',
+  'context.navAriaLabel': 'Contact navigation',
+  'context.previousAriaLabel':
+    'Previous — prior visited contact in the 250 km window',
+  'context.previousTitle':
+    'Previous — prior visited contact in the 250 km window',
+  'context.nextAriaLabel':
+    'Next — nearest unvisited contact in the 250 km window',
+  'context.nextTitle': 'Next — nearest unvisited contact in the 250 km window',
+  'context.toggleAriaLabel': 'Collapse Contact panel',
+  'context.toggleTitle': 'Collapse contact panel',
+  'context.qualifier': 'CONTEXT ONLY',
+  'context.cohortsAriaLabel': 'Nearby cohort counts',
+  'context.nearestLabel': 'NEAREST OBSERVED / MAPPED',
+  'context.nearestEmpty': 'NO AVAILABLE EXAMPLE',
+  'context.uncertaintyNote': 'AVAILABLE INPUTS ONLY · NOT AN ALL-CLEAR',
+  'context.weatherEnableAriaLabel': 'Enable cockpit weather effects',
+  'context.weatherEnableTitle': 'Enable cockpit weather effects',
+  'context.panelTitle': 'CONTEXT',
+  'context.collapseTitle': 'Expand panel',
+  'context.modesAriaLabel': 'Context mode',
+  'context.contactsTabAriaLabel': 'CONTACTS',
+  'context.contactsTabTitle':
+    'Cycles the nearest contacts of whatever type you select — planes, vessels, installations. Satellites track independently.',
+  'context.contactsTabLabel': 'CONTACTS',
+  'context.missionsTabLabel': 'SPACE MISSIONS',
+  'context.standbyTitle': 'SELECT CONTEXT',
+  'context.actionsAriaLabel': 'Contact Context actions',
+  'context.cockpitEntryLabel': 'COCKPIT',
+  'context.searchNearbyLabel': 'SEARCH NEARBY SITES',
+  'context.tr3bAriaLabel': 'Reclassify tracked contact as TR-3B',
+  'context.tr3bTitle': 'Reclassify as TR-3B',
+  'context.awarenessOffTitle': 'CONTACTS CONTEXT OFF',
+  'context.awarenessOffHint':
+    'SELECT CONTACTS TO LOAD OBSERVED / MAPPED PROXIMITY',
+  'context.rosterAriaLabel': 'Available Space Missions',
+  'context.rosterTitle': 'AVAILABLE MISSIONS',
+  'context.rosterHint': 'SELECT A MISSION TO INSPECT',
+  'context.rosterLoading': 'LOADING 30-DAY MISSION INDEX',
+  'context.radioToggleAriaLabel': 'Open compact Radio controls',
+  'context.radioToggleTitle': 'Open compact Radio controls',
+  'context.radioMiniGroupAriaLabel': 'Compact Radio controls',
+  'context.radioMiniTitle': 'RADIO',
+  'context.radioMiniReady': 'RADIO READY',
+  'context.radioDetailsAriaLabel': 'Open detailed Radio controls',
+  'context.radioDetailsTitle': 'Open detailed Radio controls',
+  'context.radioCloseAriaLabel': 'Close compact Radio controls',
+  'context.radioCloseTitle': 'Close compact Radio controls',
+  'context.radioMiniEnable': 'ENABLE',
+  'context.radioMiniPrevAriaLabel': 'Previous filtered radio station',
+  'context.radioMiniPrevTitle': 'Previous station',
+  'context.radioMiniPlayAriaLabel': 'Play selected radio station',
+  'context.radioMiniPlayTitle': 'Play',
+  'context.radioMiniNextAriaLabel': 'Next filtered radio station',
+  'context.radioMiniNextTitle': 'Next station',
+  'context.radioMiniVolumeLabel': 'VOLUME',
+  'context.radioMiniVolumeAriaLabel': 'Compact Radio volume',
+
+  // index.html cockpit utility controls + compact radio popover
+  'utility.controlsAriaLabel': 'Cockpit display and Radio controls',
+  'utility.displayLabel': 'DISPLAY',
+  'utility.radioLabel': 'RADIO',
+  'utility.displayToggleAriaLabel': 'Expand Cockpit display options',
+  'utility.displayToggleTitle': 'Expand Cockpit display options',
+  'utility.displayPanelAriaLabel': 'Cockpit display options',
+  'utility.radioToggleAriaLabel': 'Expand Cockpit Radio controls',
+  'utility.radioToggleTitle': 'Expand Cockpit Radio controls',
+  'utility.radioPanelAriaLabel': 'Cockpit compact Radio controls',
+  'radio.enable': 'ENABLE',
+  'radio.prevAriaLabel': 'Previous filtered radio station',
+  'radio.playAriaLabel': 'Play selected radio station',
+  'radio.nextAriaLabel': 'Next filtered radio station',
+  'radio.volumeLabel': 'VOLUME',
+  'radio.volumeAriaLabel': 'Cockpit Radio volume',
+
+  // ── Phase-3 runtime extraction (src/ui.js), appended ─────────────────────
+  // Values stay byte-identical to the previous English literals; existing
+  // tests pin many of them under the default locale.
+
+  // _syncPanelCollapseButton(): composed panel collapse titles. {name} is the
+  // panel's own (already localized) .panel-title text.
+  'panel.expandTitle': 'Expand {name}',
+  'panel.collapseTitle': 'Collapse {name}',
+  // Fallback when a panel ships no .panel-title/.pp-header-label node.
+  'panel.fallbackName': 'panel',
+  // Radio panel collapse state; the expand state reuses the layers.radio.*
+  // keys seeded on the static button in phase 2.
+  'panel.radioCollapseTitle': 'Collapse Radio',
+  'panel.radioCollapseAria': 'Collapse Radio section',
+  // _updateLocationMiniStatus(): runtime rewrite of the collapsed LOCATION
+  // readout's single-segment search fallback (initial-state keys
+  // location.miniCityInitial/miniPoiInitial were seeded in phase 2).
+  'location.miniSearchedPlaceholder': 'Searched location',
+
+  // ── Phase-3 runtime extraction batch 2: cockpit + Context renderers ───────
+
+  // syncWeatherToggle(): state-sibling keys for the runtime ON/OFF rewrite
+  // (context.weatherEnableAriaLabel was seeded on the static button).
+  'context.weatherDisableAriaLabel': 'Disable cockpit weather effects',
+  'context.weatherStateOn': 'ON',
+  'context.weatherStateOff': 'OFF',
+  // syncTr3bToggle(): converted-state title sibling of context.tr3bTitle.
+  'context.tr3bRestoreTitle': 'Restore real aircraft',
+  // setVisionMode(): the style token is dynamic, so the sentence is split out
+  // of the seeded vision.currentAriaLabel/currentTitle (whose values pin the
+  // NORMAL default) into {style} templates.
+  'vision.styleNameNightVision': 'Night vision',
+  'vision.styleNameThermal': 'Thermal',
+  'vision.styleNameNoir': 'Noir',
+  'vision.currentAriaTemplate':
+    'Current cockpit vision style: {style}. Activate for next style.',
+  'vision.currentTitleTemplate': 'Current style: {style} — click for next',
+
+  // Cockpit signal stream (pushCockpitSignal / renderCockpitSignals).
+  'signal.trackAcquired': 'TRACK ACQUIRED',
+  'signal.trackDetail': '{label} · COURSE {heading}°',
+  'signal.selectFlightAria': 'Select flight {title}',
+  'signal.contextStandby': 'CONTEXT STANDBY',
+  'signal.contextStandbyHint': 'ENABLE GLOBAL CONTEXT FOR PROXIMITY PINGS',
+  'signal.contactLostTitle': 'CONTACT LOST · {subject}',
+  'signal.contactLostDetail':
+    'SUBJECT LEFT ITS FEED · READOUT HOLDING LAST KNOWN',
+  'signal.classMilitary': 'MILITARY FLIGHT',
+  'signal.classCommercial': 'COMMERCIAL FLIGHT',
+  'signal.contactCurrent': '{aircraftClass} · CURRENT',
+  'signal.contactRange': '{aircraftClass} · {distance}',
+  'signal.distanceUnknown': 'DISTANCE UNKNOWN',
+  'signal.inputsUnknown': {
+    one: '{count} INPUT UNKNOWN',
+    other: '{count} INPUTS UNKNOWN',
+  },
+  'signal.sourceStatusUnavailable': 'SOURCE STATUS UNAVAILABLE',
+
+  // updateHud(): callsign fallback + the composed aircraft meta line (each
+  // feed state is its own key so no state can leak English later).
+  'hud.fallbackCallsign': 'AIRCRAFT',
+  'hud.metaClassMilitary': 'MILITARY',
+  'hud.metaClassCommercial': 'COMMERCIAL',
+  'hud.metaFeedAcquiringSurface': 'ACQUIRING SURFACE',
+  'hud.metaFeedSurfaceFallback': 'SURFACE FALLBACK',
+  'hud.metaFeedStale': 'STALE FEED',
+  'hud.metaFeedLive': 'LIVE TRACK',
+  'hud.aircraftMetaTemplate': '{aircraftClass} · {feedState} · COURSE ALIGNED',
+
+  // updateRoute(): runtime state siblings of the seeded route keys.
+  'route.statusArrowEstimated': 'ARROW · ESTIMATED DIRECTION',
+  'route.directionLabel': 'DEST {bearing}',
+
+  // updateContext(): uncertainty/nearest/bearing readout states.
+  'context.uncertaintyContactLost':
+    'CONTACT LOST · LAST KNOWN READOUT · NOT AN ALL-CLEAR',
+  'context.uncertaintyInputsUnknown': {
+    one: '{count} INPUT UNKNOWN · NOT AN ALL-CLEAR',
+    other: '{count} INPUTS UNKNOWN · NOT AN ALL-CLEAR',
+  },
+  'context.uncertaintyInputsCurrent':
+    'AVAILABLE INPUTS CURRENT · NOT AN ALL-CLEAR',
+  'context.nearestTemplate': '{cohort} · {contact}',
+  'context.nearestUnavailableAria': '{cohort}, Unavailable',
+  'context.bearingNone': 'BRG —',
+  'context.bearingAhead': 'AHEAD',
+  'context.bearingSide': '{side} {angle}',
+  'context.sideLeft': 'L',
+  'context.sideRight': 'R',
+
+  // setContextCollapsed()/setSignalCollapsed(): expand-state siblings.
+  'context.toggleExpandAriaLabel': 'Expand Contact panel',
+  'context.toggleExpandTitle': 'Expand contact panel',
+  'brief.expandAriaLabel': 'Expand cockpit briefing panel',
+  'brief.expandTitle': 'Expand briefing panel',
+
+  // setBriefAutoRotate(): cycle toggle states + the ON-state help text (the
+  // OFF-state help is the seeded brief.autoTitle).
+  'brief.autoOn': 'CYCLE ON',
+  'brief.autoOff': 'CYCLE OFF',
+  'brief.autoTitleOn':
+    'Stop automatic page cycling. Previous, Next, and the SIG/NEWS/LOCAL tabs stay available.',
+
+  // Briefing carousel pages (kicker/subtitle/source per page; the news/local
+  // source lines are provider attribution and stay English).
+  'brief.kickerNews': 'REGIONAL NEWS',
+  'brief.kickerLocal': 'LOCAL INFO',
+  'brief.subtitleNews': 'LATEST LOCATION-MATCHED REPORTING',
+  'brief.subtitleLocal': 'PLACE / CONDITIONS / POSITION',
+
+  // Local position + regional brief status states.
+  'brief.positionUnavailable': 'POSITION UNAVAILABLE',
+  'brief.newsUnavailable': 'REGIONAL NEWS UNAVAILABLE',
+  'brief.regionUnavailable': 'REGION UNAVAILABLE',
+  'brief.newsEmpty': 'NO RECENT LOCATION MATCHES',
+
+  // renderRegionalBrief(): article metadata, cloud readout, and age chips.
+  'brief.metadataSourceFallback': 'SOURCE',
+  'brief.articleMetaTemplate': '{domain} · {age}',
+  'brief.newsSourceLine': '{source} · LOCATION QUERY',
+  'brief.age.timeUnknown': 'TIME UNKNOWN',
+  'brief.age.minutes': '{count}M AGO',
+  'brief.age.hours': '{count}H AGO',
+  'brief.age.days': '{count}D AGO',
+  'brief.wind.dirUnknown': 'DIR UNKNOWN',
+  'brief.cloudTemplate': 'CLOUD {pct}%',
+  'brief.cloudUnknown': 'CLOUD UNKNOWN',
+
+  // ── Phase-3 runtime extraction batch 3: toasts, loading helpers, map tray ─
+
+  // Panel-chrome + share/location toasts.
+  'panel.layoutResetToast':
+    'Panel layout updated — positions reset to new defaults',
+  'share.toastCopied': 'Link copied!',
+  'share.toastCopyFailed': 'Copy failed',
+  'location.toastNotFound': 'Location not found',
+  'location.toastSearchFailed': 'Search failed',
+  'location.toastFlyToPoiFirst': 'Fly to a POI first',
+  'actions.clearLayersBusyAria': 'Clearing selected data layers',
+  'actions.clearLayersFailedToast': 'Selected data layers could not be cleared',
+
+  // Global status chip notices (_handleShareTrackingRestoreStatus).
+  'status.acquiring': 'ACQUIRING',
+  'status.subjectFallback': 'entity',
+  'status.sharedSubjectDetail': 'SHARED {subject}',
+  'status.sharedFollowExpired': 'Shared {subject} follow expired',
+  'status.sharedRestoreFailed':
+    'Shared {subject} could not be restored — feed unavailable',
+  'status.sharedUnavailable': 'Shared {subject} is unavailable',
+
+  // Context mode user-facing action failures.
+  'context.modeContext': 'Context',
+  'context.modeSpaceMissions': 'Space Missions',
+  'context.toastStartBlocked':
+    '{mode} could not start because another layer did not stop cleanly',
+  'context.toastTransitionFailedContacts':
+    'Contacts could not complete the requested transition; try again',
+  'context.toastTransitionFailedMissions':
+    'Space Missions could not complete the requested transition; try again',
+  'context.toastInstallationsRefreshFailed':
+    'Nearby installations could not be refreshed; try again',
+  'context.toastRestoreFailed':
+    'Context could not restore every layer; try again',
+  'context.toastZoomToSearch': 'Zoom in to search mapped installations',
+  'context.toastInstallationsRefreshed': 'Nearby installations refreshed',
+  'context.toastLayerUnavailable':
+    'That layer is unavailable in the current Context mode',
+  'context.actionStart': 'start',
+  'context.actionStop': 'stop',
+  'context.toastLayerLifecycleFailed': '{layerId} could not {action} cleanly',
+  'radio.toastLifecycleFailed': 'Radio could not {action} cleanly',
+
+  // CCTV sync chip captions + calibration/availability toasts.
+  'cctv.syncLoadingFrames': 'loading frames',
+  'cctv.syncGridReady': 'camera grid ready',
+  'cctv.toastCalibrationSaved': 'CCTV calibration saved',
+  'cctv.toastCalibrationReset': 'CCTV calibration reset',
+  'cctv.toastLayerUnavailable': 'CCTV layer unavailable',
+
+  // _renderMapStackState(): status chip fallback when no stack label resolves
+  // (stack names themselves are keep-English provider/stack ids).
+  'presets.mapStackFallback': 'MAP',
+
+  // ── Phase-3 runtime extraction batch 4: awareness / CCTV / Radio panels ───
+  // (radio.* and cctv.* state values that layers.js already seeds are reused
+  // cross-namespace; these are the runtime-only siblings and compositions.)
+
+  // _applyRuntimeStaticHeaderText(): the key-only standby description span
+  // (both mode descriptions in one span split by a literal <br> in phase 2).
+  'context.standbyContactsDesc': 'CONTACTS — nearest planes · vessels · sites',
+  'context.standbyMissionsDesc': 'SPACE MISSIONS — launches & orbital assets',
+  // _syncContextRadioLauncherState(): close-state sibling of the seeded
+  // context.radioToggleAriaLabel ('Open compact Radio controls').
+  'context.radioToggleCloseAriaLabel': 'Close compact Radio controls',
+  'context.toastMissionsCancelRestoreFailed':
+    'Space Missions cancellation could not restore the previous layer state',
+  // Cockpit utility disclosures: collapse-state siblings of the seeded
+  // utility.*ToggleAriaLabel expand keys.
+  'utility.displayToggleCollapseAriaLabel': 'Collapse Cockpit display options',
+  'utility.radioToggleCollapseAriaLabel': 'Collapse Cockpit Radio controls',
+
+  // Radio panel runtime states (state-sibling keys so no state can leak
+  // English later; lifecycle enum labels reuse layers.status.*).
+  'radio.stateSync': 'SYNC',
+  'radio.tunerCategoryBand': '{category} BAND',
+  'radio.tunerNoStations': 'NO STATIONS',
+  'radio.tunerStationAria': '{name}, station {index} of {total}',
+  'radio.tunerNoStationAria': 'No station available',
+  'radio.tunerOffAir': 'OFF AIR',
+  'radio.tunerStationUnavailable': 'STATION UNAVAILABLE',
+  'radio.actionPlay': 'Play',
+  'radio.actionPause': 'Pause',
+  'radio.actionResume': 'Resume',
+  'radio.targetSelected': 'selected',
+  'radio.targetNearest': 'nearest',
+  'radio.playStateAria': '{action} {target} radio station',
+  'radio.miniStateUncertain': 'RADIO STATE UNCERTAIN',
+  'radio.miniSyncingDirectory': 'SYNCING DIRECTORY',
+  'radio.stationSyncing': 'SYNCING',
+  'radio.stationFallback': 'station',
+  'radio.playbackReadyFallback': 'Ready',
+
+  // CCTV panel runtime states (layers.cctv.* seeded keys reused where they
+  // match; these are the runtime-only compositions and flipped states).
+  'cctv.coverageViewshedOn': 'VIEWSHED ON',
+  'cctv.frameLoading': 'FRAME · LOADING',
+  'cctv.frameUnavailable': 'FRAME · UNAVAILABLE',
+  'cctv.calChipEdited': 'CAL · EDITED (UNSAVED)',
+  'cctv.calChipTemplate': 'CAL · {badge}',
+  'cctv.calBadgeCalibrated': 'CALIBRATED',
+  'cctv.calBadgeCurated': 'CURATED',
+  'cctv.calBadgeRawPrior': 'RAW PRIOR',
+  'cctv.metaProjectionMonitor': 'MONITOR',
+  'cctv.metaProjectionOff': 'OFF',
+  'cctv.metaTemplate':
+    '{city} · HDG {heading} · FOV {fov} · RANGE {range}m · {projection}{calBadge} · {provider}{status}',
+  'cctv.metaCamerasClick': {
+    one: '{count} camera loaded · click a camera to activate',
+    other: '{count} cameras loaded · click a camera to activate',
+  },
+  'cctv.metaCamerasEnable': {
+    one: '{count} camera loaded · enable CCTV to activate',
+    other: '{count} cameras loaded · enable CCTV to activate',
+  },
+  'cctv.summaryNoneAvailable': 'No summary available.',
+
+  // ── Phase-3 runtime extraction batch 5: remainder + hud.js ────────────────
+
+  // _setCelestialRingEnabled(): unsupported-style title sibling of the seeded
+  // display.celestialToggleTitle.
+  'display.celestialUnavailableTitle':
+    'Celestial ring — available in Normal style',
+  // _updateDetectionButton(): density-profile labels (display.detectionLabel
+  // 'DETECT' was seeded on the static button) + composed aria.
+  'display.detectionAriaTemplate': 'Detection overlay: {mode}',
+  'display.detectionAriaOff': 'Detection overlay: off',
+  'display.detectionLabelSparse': 'SPARSE',
+  'display.detectionLabelBalanced': 'BALANCED',
+  'display.detectionLabelDense': 'DENSE',
+  // Globe-reset buttons: idle/working aria states (cockpit variant sibling).
+  'hud.resetGlobeAria': 'Reset to full globe view',
+  'hud.resetGlobeCockpitAria': 'Reset cockpit to full globe view',
+  'hud.resettingGlobeAria': 'Resetting to full globe view',
+  'hud.resettingGlobeCockpitAria': 'Resetting cockpit to full globe view',
+  // _initOrbit(): indicator caption after the orbit glyph.
+  'location.orbitLabel': 'ORBIT',
+  // Intel HUD (src/hud.js): summary caption, idle placeholder, REC indicator.
+  // Classification banners, terse instrument readout codes (MGRS/GSD/NIIRS/
+  // ALT/COLL/ONA/BAND/BITS/LVL), and the AI summary line stay keep-English.
+  'hud.summaryLabel': 'SUMMARY',
+  'hud.summaryAwaiting': 'Awaiting telemetry...',
+  'hud.recLabel': 'REC',
+
+  // Upstream a11y additions (post-merge follow-up): slider/toggle accessible names.
+  'display.featherAria': 'Scope edge feather',
+  'display.bloomAria': 'Bloom intensity',
+  'display.sharpenAria': 'Sharpen intensity',
+  'location.searchAria': 'Search location by name or coordinates',
+  'location.toggleAria': 'Expand LOCATION',
+};

src/i18n/locales/en/layers.js

@@ -0,0 +1,501 @@
+// English catalog — layers namespace (phase-1 seed).
+//
+// Owns data-layer presentation copy: display names, feed-state labels, and
+// layer batch toasts. Machine-readable values (layer ids, status enum keys,
+// provider names) are intentionally NOT here — see docs/TRANSLATORS.md
+// for the keep-English boundary. Keys are namespace-relative; the registry
+// prefixes them with `layers.`.
+export const NAMESPACE = 'layers';
+
+export default {
+  // src/data/manager.js FEED_STATE_LABELS value
+  'status.unavailable': 'UNAVAILABLE',
+  // src/data/flights.js / src/data/earthquakes.js layer display names
+  'name.liveFlights': 'Live Flights',
+  'name.earthquakes': 'Earthquakes (24h)',
+  // src/ui.js clearSelectedLayers() result toasts (genuine plural copy)
+  'clear.toast.noneSelected': 'No selected data layers',
+  'clear.toast.cleared': {
+    one: 'Cleared {count} data layer',
+    other: 'Cleared {count} data layers',
+  },
+  'clear.toast.notCleared': {
+    one: '{count} data layer could not be cleared',
+    other: '{count} data layers could not be cleared',
+  },
+
+  // ── Phase-2 static markup extraction (index.html), appended ──────────────
+  // The shell worker owns ALL index.html static markup in phase 2
+  // (docs/TRANSLATORS.md cross-surface rule); these keys cover the
+  // layers-worker surfaces (world overlay, CCTV panel, Radio panel) whose
+  // runtime presentation paths land here in phase 3.
+
+  // index.html #world-overlay-actions region (src/overlays/worldOverlay.js)
+  'overlay.regionAriaLabel': 'Visible map targets',
+
+  // index.html CCTV panel chrome. Button texts marked as states (toggleOff,
+  // coverageOff, autoHopOff, projectionOn) are the shipped initial values; the
+  // phase-3 layer worker adds the flipped-state siblings.
+  'cctv.panelTitle': 'CCTV',
+  'cctv.collapseTitle': 'Collapse panel',
+  'cctv.sourceUnknown': 'SOURCE · UNKNOWN',
+  'cctv.metaIdle': 'Enable CCTV to load camera intersections',
+  'cctv.toggleOff': 'CCTV OFF',
+  'cctv.nearest': 'NEAREST',
+  'cctv.prev': 'PREV',
+  'cctv.cameraAriaLabel': 'CCTV camera',
+  'cctv.next': 'NEXT',
+  'cctv.focus': 'FOCUS',
+  'cctv.coverageOff': 'COVERAGE OFF',
+  'cctv.autoHopOff': 'AUTO HOP OFF',
+  'cctv.projectionOn': 'PROJECTION ON',
+  'cctv.calibrationLabel': 'CALIBRATION',
+  'cctv.adjustLabel': 'ADJUST',
+  'cctv.adjustTitle':
+    'Drag the camera in the world: rings rotate, arrows move, handles set range/FOV',
+  'cctv.calPoseAriaLabel': 'Camera pose — click a value to type',
+  'cctv.calHeadingTitle': 'Heading (compass °) — click to type',
+  'cctv.calPitchTitle': 'Pitch (° up/down) — click to type',
+  'cctv.calFovTitle': 'Horizontal FOV (°) — click to type',
+  'cctv.calRangeTitle': 'Range / monitor-plane distance (m) — click to type',
+  'cctv.calHeightTitle': 'Mount height above ground (m) — click to type',
+  'cctv.calNorthTitle':
+    'North offset from catalog position (m) — click to type',
+  'cctv.calEastTitle': 'East offset from catalog position (m) — click to type',
+  'cctv.saveCal': 'SAVE CAL',
+  'cctv.resetCal': 'RESET CAL',
+  'cctv.summaryLabel': 'SCENE SUMMARY',
+  'cctv.summaryIdle':
+    'Enable CCTV to start camera-linked intelligence summaries.',
+
+  // index.html Radio panel chrome (right rail #radio-panel)
+  'radio.panelAriaLabel': 'Internet radio and local SDR',
+  'radio.panelTitle': 'RADIO',
+  'radio.expandTitle': 'Expand Radio',
+  'radio.expandAriaLabel': 'Expand Radio section',
+  'radio.enable': 'ENABLE',
+  'radio.stationTagLabel': 'STATION TAG',
+  'radio.filterAriaLabel': 'Filter stations by station tag',
+  'radio.filterAll': 'All',
+  'radio.noStation': 'NO STATION SELECTED',
+  'radio.stationHint': 'Enable Radio, then choose a globe marker or use next.',
+  // Key-only: the #radio-tuner-band-label span text is pinned verbatim by
+  // radioMarkup.test.mjs, so the attribute must be wired by a later phase.
+  'radio.bandLabel': 'DIRECTORY BAND',
+  'radio.dragToTune': 'DRAG TO TUNE',
+  'radio.tunerIdle': 'ALL · DRAG THE NEEDLE',
+  'radio.snapsNote': 'SNAPS TO AVAILABLE STATIONS',
+  'radio.transportAriaLabel': 'Radio playback',
+  'radio.prev': 'PREV',
+  'radio.prevAriaLabel': 'Previous filtered station',
+  'radio.play': 'PLAY',
+  'radio.playAriaLabel': 'Play selected station',
+  'radio.next': 'NEXT',
+  'radio.nextAriaLabel': 'Next filtered station',
+  'radio.stop': 'STOP',
+  'radio.stopAriaLabel': 'Stop radio playback',
+  'radio.volumeLabel': 'VOLUME',
+  'radio.volumeAriaLabel': 'Radio volume',
+  // Initial idle announcement; the runtime states land with the layers worker.
+  'radio.playbackOff': 'Radio off',
+  'radio.stationSite': 'STATION SITE',
+  'radio.privacyNote':
+    'Audio connects directly to the broadcaster after you press play. Your IP is visible to that broadcaster.',
+
+  // ── Phase-3 runtime extraction (src/data/*), appended ────────────────────
+  // Layer display names are translated only at the presentation boundary
+  // (manager.js _renderToggles/_syncToggleButton map layer.id → key here).
+  // layer.id values, FEED_STATE_LABELS enum KEYS, and lifecycle state keys
+  // stay English — see docs/TRANSLATORS.md keep-English boundary.
+
+  // src/data/manager.js FEED_STATE_LABELS values + toggle-button states.
+  'status.on': 'ON',
+  'status.loading': 'LOADING',
+  'status.degraded': 'DEGRADED',
+  'status.stale': 'STALE',
+  'status.fallback': 'FALLBACK',
+  'status.off': 'OFF',
+  'status.partial': 'PARTIAL',
+  'status.uncertain': 'UNCERTAIN',
+  'status.enabling': 'ENABLING',
+  'status.disabling': 'DISABLING',
+
+  // Layer display names (toggle panel rows + toggle-button aria-label).
+  'name.militaryFlights': 'Military Flights',
+  'name.satellites': 'Satellites',
+  'name.rocketLaunches': 'Space Missions (30d)',
+  'name.traffic': 'Street Traffic',
+  'name.cctv': 'CCTV',
+  'name.radio': 'Radio',
+  'name.bikeshare': 'Bikeshare',
+  'name.aisVessels': 'Live AIS Vessels',
+  'name.installations': 'Mapped Installations',
+  'name.globalContext': 'Global Context',
+  'name.datacenters': 'Datacenters',
+  'name.dams': 'Dams',
+  'name.submarineCables': 'Submarine Cables',
+  'name.fires': 'FIRMS Active Fires',
+
+  // src/data/manager.js data-panel row meta line (_buildMetaText) + time ago.
+  'meta.justNow': 'just now',
+  'meta.secondsAgo': '{count}s ago',
+  'meta.minutesAgo': '{count}m ago',
+  'meta.hoursAgo': '{count}h ago',
+  'meta.never': 'never',
+  'meta.loading': 'loading...',
+  'meta.uncertainLifecycle':
+    'UNCERTAIN · {source} · lifecycle state requires reconciliation',
+  'meta.transitioning': '{state} · {source}',
+  'meta.stateSourceRetry': '{state} · {source} · {detail} · retry {seconds}s',
+  'meta.stateSourceDetail': '{state} · {source} · {detail}',
+  'meta.stateSourceAgo': '{state} · {source} · {ago}',
+  'meta.stateSourceAgoRetry':
+    '{state} · {source} · {ago} · retrying in {seconds}s',
+  'meta.sourceLoading': '{source} · {loadingLabel}',
+  'meta.sourceAgo': '{source} · {ago}',
+  'meta.partialCounts': '{accepted} of {raw} records accepted',
+  'meta.partialIncomplete': 'incomplete snapshot',
+  'meta.partialDetail': '{state} · {source} · {detail} · {ago}',
+  'meta.toggleAriaLabel': '{name}: {state}',
+
+  // src/data/militaryFlights.js tracked readout fallback captions.
+  'readout.typeUnknown': 'Type unknown',
+  'readout.regUnknown': 'Reg unknown',
+  'readout.operatorUnknown': 'Operator unknown',
+  'readout.altUnknown': 'Alt unknown',
+
+  // src/data/vesselLabels.js AIS type names (display only — the styling
+  // matcher keeps the English tokens as machine values).
+  'vessel.type.fishing': 'FISHING',
+  'vessel.type.towing': 'TOWING',
+  'vessel.type.dredger': 'DREDGER',
+  'vessel.type.diveOps': 'DIVE OPS',
+  'vessel.type.military': 'MILITARY',
+  'vessel.type.sailing': 'SAILING',
+  'vessel.type.pleasure': 'PLEASURE',
+  'vessel.type.pilot': 'PILOT',
+  'vessel.type.sar': 'SAR',
+  'vessel.type.tug': 'TUG',
+  'vessel.type.portTender': 'PORT TENDER',
+  'vessel.type.antiPollution': 'ANTI-POLLUTION',
+  'vessel.type.lawEnforce': 'LAW ENFORCE',
+  'vessel.type.medical': 'MEDICAL',
+  'vessel.type.highSpeed': 'HIGH-SPEED',
+  'vessel.type.passenger': 'PASSENGER',
+  'vessel.type.cargo': 'CARGO',
+  'vessel.type.tanker': 'TANKER',
+  'vessel.type.other': 'OTHER',
+
+  // src/data/aisLiveVessels.js vessel cards + selected-vessel HUD.
+  'vessel.fallback': 'VESSEL',
+  'vessel.posLive': 'POS: LIVE',
+  'vessel.posAt': 'POS: {time}Z',
+  'vessel.hudIdle': 'AIS: --',
+  'vessel.hudName': 'AIS: {name}',
+  'vessel.hudTypeLine': '{type}  SPD: {speed}  HDG: {heading}',
+  'vessel.awaitingFirstPosition': 'awaiting first AIS position…',
+
+  // index.html CCTV panel flipped-state siblings (runtime writers live in
+  // src/ui.js, owned by core-ui — these keys are the layers-surface half of
+  // the cross-surface rule in docs/TRANSLATORS.md).
+  'cctv.toggleOn': 'CCTV ON',
+  'cctv.coverageOn': 'COVERAGE ON',
+  'cctv.autoHopOn': 'AUTO HOP ON',
+  'cctv.projectionOff': 'PROJECTION OFF',
+  'cctv.adjustOn': 'ADJUST ON',
+
+  // src/data/cctv.js buildSummaryText() — the SCENE SUMMARY line.
+  'cctv.summary.standingBy':
+    '{count} CAMERAS STANDING BY · NO CAMERA SELECTED · CLICK A CAMERA TO ACTIVATE',
+  'cctv.summary.empty': 'No cameras available in catalog.',
+  'cctv.summary.city': '{city} CCTV',
+  'cctv.summary.hdg': 'HDG {value}°',
+  'cctv.summary.fov': 'FOV {value}°',
+  'cctv.summary.coverage': 'COVERAGE {value}km²',
+  'cctv.summary.overlap': 'OVERLAP {count} cams',
+  'cctv.summary.isolated': 'ISOLATED VIEW',
+  'cctv.summary.projMonitor': 'PROJ MONITOR',
+  'cctv.summary.projOff': 'PROJ OFF',
+  'cctv.summary.viewshed': 'VIEWSHED',
+  'cctv.summary.cal': 'CAL {value}',
+  'cctv.summary.src': 'SRC {value}',
+  'cctv.summary.context': '{value} CONTEXT',
+
+  // src/data/radio.js station-tag categories, genre labels, cluster badges.
+  'radio.category.news': 'News',
+  'radio.category.talk': 'Talk',
+  'radio.category.weather': 'Weather / Emergency',
+  'radio.category.publicSafety': 'Public Safety',
+  'radio.category.aviationMarine': 'Aviation / Marine',
+  'radio.category.trafficTransit': 'Traffic / Transit',
+  'radio.category.music': 'Music',
+  'radio.category.other': 'Other',
+  'radio.genre.alternative': 'Alternative',
+  'radio.genre.ambient': 'Ambient',
+  'radio.genre.blues': 'Blues',
+  'radio.genre.classical': 'Classical',
+  'radio.genre.country': 'Country',
+  'radio.genre.dance': 'Dance',
+  'radio.genre.electronic': 'Electronic',
+  'radio.genre.folk': 'Folk',
+  'radio.genre.funk': 'Funk',
+  'radio.genre.hipHop': 'Hip-Hop',
+  'radio.genre.house': 'House',
+  'radio.genre.indie': 'Indie',
+  'radio.genre.jazz': 'Jazz',
+  'radio.genre.latin': 'Latin',
+  'radio.genre.metal': 'Metal',
+  'radio.genre.oldies': 'Oldies',
+  'radio.genre.pop': 'Pop',
+  'radio.genre.punk': 'Punk',
+  'radio.genre.rAndB': 'R&B',
+  'radio.genre.reggae': 'Reggae',
+  'radio.genre.rock': 'Rock',
+  'radio.genre.soul': 'Soul',
+  'radio.genre.techno': 'Techno',
+  'radio.genre.trance': 'Trance',
+  'radio.genre.world': 'World',
+  'radio.cluster.news': 'NEWS',
+  'radio.cluster.talk': 'TALK',
+  'radio.cluster.weather': 'WEATHER',
+  'radio.cluster.publicSafety': 'SAFETY',
+  'radio.cluster.aviationMarine': 'AIR / SEA',
+  'radio.cluster.trafficTransit': 'TRANSIT',
+  'radio.cluster.music': 'MUSIC',
+  'radio.cluster.other': 'OTHER',
+
+  // Radio right-rail panel runtime states (seeded here per the ownership
+  // contract; src/ui.js wires the writes — core-ui). English values mirror
+  // the literals ui.js writes today so wiring is byte-identical under 'en'.
+  'radio.noStationAvailable': 'NO STATION AVAILABLE',
+  'radio.disable': 'DISABLE',
+  'radio.reconcile': 'RECONCILE',
+  'radio.enableAria': 'Enable Radio',
+  'radio.disableAria': 'Disable Radio',
+  'radio.reconcileAria': 'Reconcile Radio — lifecycle uncertain',
+  'radio.meta.loading': 'Loading station directory…',
+  'radio.meta.metadataOnly': 'Directory metadata only',
+  'radio.meta.chooseHint': 'Choose a globe marker or use next.',
+  'radio.tags': 'TAGS · {tags}',
+  'radio.state.ready': 'Ready — playback starts only from your action',
+  'radio.state.loading': 'Connecting directly to broadcaster…',
+  'radio.state.buffering': 'Buffering broadcaster stream…',
+  'radio.state.playing': 'Playing {station}',
+  'radio.state.paused': 'Paused {station}',
+  'radio.state.error': 'Broadcaster stream unavailable',
+  'radio.state.degradedDirectory': ' · degraded directory',
+  'radio.state.staleDirectory': ' · stale directory',
+  'radio.state.staleDegradedDirectory': ' · stale/degraded directory',
+  'radio.state.outsideFilter': ' · outside current filter',
+  'radio.state.voiceMuted': ' · muted during voice interaction',
+  'radio.state.voiceRestoring': ' · restoring volume after voice',
+  'radio.state.staticNoAudio': ' · static indicates no broadcaster audio',
+  'radio.state.tuningStatic': ' · tuning static until broadcaster starts',
+  'radio.state.stationUnavailable':
+    'Station unavailable after directory refresh — choose another channel',
+  'radio.state.enabling': 'Radio is enabling…',
+  'radio.state.disabling': 'Radio is disabling…',
+  'radio.state.uncertain':
+    'Radio lifecycle is uncertain — use Enable or Disable to reconcile',
+
+  // src/data/rocketLaunches.js space-mission surface (runtime-built panel,
+  // roster, replay overlay, and map cards).
+  'missions.launchSite': 'LAUNCH SITE',
+  'missions.launchSiteValue': 'LAUNCH SITE · {site}',
+  'missions.panel.selectedHeader': 'SELECTED SPACE MISSION',
+  'missions.panel.showAllTitle': 'Show all missions',
+  'missions.panel.deselectAria': 'Deselect mission',
+  'missions.panel.mission': 'MISSION',
+  'missions.panel.status': 'STATUS · ',
+  'missions.panel.launchSite': 'LAUNCH SITE · ',
+  'missions.panel.launchTime': 'LAUNCH TIME · ',
+  'missions.panel.orbit': 'ORBIT · ',
+  'missions.panel.ascentPath': 'ASCENT PATH · ',
+  'missions.panel.distance': 'CURRENT DISTANCE FROM EARTH · ',
+  'missions.panel.speed': 'SATELLITE SPEED · ',
+  'missions.panel.payload': 'PAYLOAD',
+  'missions.panel.colName': 'NAME',
+  'missions.panel.colType': 'TYPE',
+  'missions.panel.colDestination': 'DESTINATION',
+  'missions.panel.stagesSection': 'STAGE / RE-ENTRY / RECOVERY',
+  'missions.panel.colStage': 'STAGE',
+  'missions.panel.colStatus': 'STATUS',
+  'missions.panel.colFinalPosition': 'FINAL POSITION',
+  'missions.panel.focus': 'FOCUS',
+  'missions.panel.prev': 'PREV',
+  'missions.panel.next': 'NEXT',
+  'missions.panel.prevTitle': 'Previous mission',
+  'missions.panel.nextTitle': 'Next mission',
+  'missions.panel.showAll': 'SHOW ALL / DESELECT',
+  'missions.roster.empty': 'NO MISSIONS AVAILABLE IN THE CURRENT 30-DAY WINDOW',
+  'missions.roster.count': '{count} / 30D',
+  'missions.roster.dateUnavailable': 'DATE UNAVAILABLE',
+  'missions.roster.unspecifiedOperator': 'UNSPECIFIED OPERATOR',
+  'missions.roster.selectAria': 'Select {mission}',
+  'missions.rows.additionalPayloads': '+{count} additional payload records',
+  'missions.rows.classified': 'PAYLOAD DATA UNAVAILABLE',
+  'missions.rows.noStageData': 'NO STAGE RE-ENTRY / RECOVERY DATA',
+  'missions.rows.unspecified': 'UNSPECIFIED',
+  'missions.rows.unavailable': 'UNAVAILABLE',
+  'missions.rows.flightNumber': 'FLIGHT {count}',
+  'missions.rows.reused': 'REUSED',
+  'missions.rows.positionUnavailable': 'POSITION UNAVAILABLE',
+  'missions.rows.kmDownrange': '{value} KM DOWNRANGE',
+  'missions.rows.plannedPrefix': 'PLANNED · ',
+  'missions.rows.suppliedTrajectory': 'SUPPLIED TRAJECTORY POINTS',
+  'missions.rows.reconstructedEstimate': 'RECONSTRUCTED ESTIMATE',
+  'missions.telemetry.km': '{value} KM',
+  'missions.telemetry.kmPerSecond': '{value} KM/S',
+  'missions.replay.start': 'REPLAY ASCENT',
+  'missions.replay.startTitle':
+    'Replay the estimated ascent with a following camera',
+  'missions.replay.pause': 'Pause replay',
+  'missions.replay.resume': 'Resume replay',
+  'missions.replay.cancel': 'Cancel replay',
+  'missions.replay.speedLabel': 'REPLAY SPEED',
+  'missions.replay.speedAria': 'Replay speed multiplier',
+  'missions.replay.countdown': 'T−{time} · {mission}',
+  'missions.replay.standbyDetail': 'LAUNCH STANDBY',
+  'missions.replay.liftoff': 'LIFTOFF · {mission}',
+  'missions.replay.ascentReplay': 'ASCENT REPLAY · {mission}',
+  'missions.replay.ascentEstimate': 'ASCENT ESTIMATE · {mission}',
+  'missions.replay.recovery': 'STAGE RE-ENTRY / RECOVERY · {mission}',
+  'missions.replay.orbit': 'ORBIT REPLAY · {mission}',
+  'missions.replay.pausedPrefix': 'PAUSED · {title}',
+  'missions.replay.phaseCountdown': 'T minus {seconds}',
+  'missions.replay.phasePreparing': 'Preparing launch site',
+  'missions.replay.phaseLiftoff': 'Liftoff',
+  'missions.replay.phaseAscent': 'Ascent replay',
+  'missions.replay.phaseOrbit': 'Orbit replay',
+  'missions.replay.pausedSuffix': ', paused',
+
+  // src/data/satellites.js dense-shell chip + src/data/satelliteClass.js
+  // class labels and legend blurbs.
+  'satellites.denseChip': 'DENSE',
+  'satellites.denseChipLoading': 'DENSE ···',
+  'satellites.denseChipFailed': 'DENSE ✕',
+  'satellites.denseTitleAdd':
+    'Add the full Starlink broadband shell (thousands of extra points)',
+  'satellites.denseTitleLoading': 'Loading the Starlink shell…',
+  'satellites.denseTitleFailed': 'Starlink {detail} — click to retry',
+  'satellites.loadFailed': 'load failed',
+  'satellites.denseTitleActive':
+    'Showing the full Starlink shell — click for the core catalog only',
+  'satellites.class.station': 'STATION',
+  'satellites.class.stationBlurb':
+    'Crewed stations and their visiting vehicles',
+  'satellites.class.nav': 'NAV',
+  'satellites.class.navBlurb': 'GNSS navigation — GPS, GLONASS, Galileo',
+  'satellites.class.geo': 'GEO',
+  'satellites.class.geoBlurb':
+    'Geostationary belt — comms and weather, fixed over the equator',
+  'satellites.class.visual': 'VISUAL',
+  'satellites.class.visualBlurb':
+    'Brightest naked-eye objects — CelesTrak visual group',
+  'satellites.class.comms': 'COMMS',
+  'satellites.class.commsBlurb':
+    'Broadband constellation shell — shown only in DENSE mode',
+
+  // src/data/firmsHeatmap.js stats labels + fire/cell cards.
+  'meta.refreshing': 'refreshing...',
+  'firms.keyRequired': 'KEY REQUIRED',
+  'firms.staleCached': 'STALE · cached {age}',
+  'firms.liveUpdated': 'LIVE · updated {age}',
+  'firms.underMinuteAgo': '<1m ago',
+  'firms.card.fire': 'FIRE · {frp} MW',
+  'firms.card.ambient': '▲ {frp} MW',
+  'firms.card.fireNoun': 'FIRE',
+  'firms.card.firesNoun': 'FIRES',
+  'firms.card.confSuffix': '{value} conf',
+  'firms.card.ageSuffix': '{value} ago',
+  'firms.card.maxFrp': 'max {value} MW',
+  'firms.card.newAge': 'new {value}',
+  'firms.card.night': 'NIGHT',
+  'firms.card.sensorUnavailable': 'sensor n/a',
+  'firms.card.focusAria': 'Focus fire detection {title}, {details}',
+
+  // src/data/traffic.js feed presentation (manager meta loadingLabel values).
+  'traffic.loadingSyncing': 'syncing LIVE traffic flow',
+  'traffic.liveCoverage': 'LIVE · TomTom flow · {percent}% cov',
+  'traffic.simUnavailable': 'SIMULATED — traffic service unreachable',
+  'traffic.simKeyless': 'SIMULATED — add TomTom key for live',
+
+  // src/data/bikeshare.js loading labels + selected-station card.
+  'bike.loadingSyncing': 'syncing {count} city feeds...',
+  'bike.loadingScanning': 'scanning nearby systems...',
+  'bike.card.capacity': '🚲 {bikes} avail · {docks} docks · {capacity} cap',
+  'bike.warning.notInstalled': '⚠️ Not installed',
+  'bike.warning.notRenting': '⚠️ Not renting',
+  'bike.warning.notReturning': '⚠️ Not returning',
+  'bike.stationFallback': 'Station',
+  'bike.stationWithId': 'Station {id}',
+
+  // src/data/militaryInstallations.js + installationFeedback.js.
+  'installations.fallbackTitle': 'MAPPED INSTALLATION',
+  'installations.loading': 'loading mapped installation context',
+  'installations.feedback.reason.rateLimited': 'Overpass rate-limited',
+  'installations.feedback.reason.timeout': 'Overpass timed out',
+  'installations.feedback.reason.queryFailed':
+    'Overpass could not complete the query',
+  'installations.feedback.reason.unavailable':
+    'Overpass temporarily unavailable',
+  'installations.feedback.retrying': 'Retrying mapped sites…',
+  'installations.feedback.fetching': 'Fetching mapped sites…',
+  'installations.feedback.retryIn': '{reason} — retrying in {seconds}s',
+  'installations.feedback.retryPending': '{reason} — retry pending',
+  'installations.feedback.zoomIn': 'Zoom in to search mapped installations',
+  'installations.feedback.cached': 'Showing cached mapped sites',
+  'installations.feedback.notLoaded': 'Mapped sites not loaded',
+  'installations.feedback.loaded': 'Mapped sites loaded',
+
+  // src/data/militaryAwareness.js panel + militaryAwarenessEngine.js reasons.
+  'awareness.standbyReady': 'CONTEXT READY',
+  'awareness.standbyOff': 'GLOBAL CONTEXT OFF',
+  'awareness.standbySelect': 'SELECT A FLIGHT, VESSEL, OR MAPPED INSTALLATION',
+  'awareness.standbyEnable': 'ENABLE TO LOAD OBSERVED / MAPPED PROXIMITY',
+  'awareness.controlsAria': 'Global Context navigation',
+  'awareness.previous': 'PREVIOUS',
+  'awareness.focus': 'FOCUS',
+  'awareness.next': 'NEXT',
+  'awareness.previousTitle':
+    'Previous — prior visited contact in the 250 km window',
+  'awareness.nextTitle':
+    'Next — nearest unvisited contact in the 250 km window',
+  'awareness.note':
+    'Open-source mapped/observed context. Missing broadcasts, unloaded map areas, or unmapped sites are not evidence of absence.',
+  'awareness.unavailableAria': 'Unavailable',
+  'awareness.focusAria': 'Focus {label}',
+  'awareness.cohort.flights': 'Flights',
+  'awareness.cohort.military': 'Military flights',
+  'awareness.cohort.vessels': 'AIS vessels',
+  'awareness.cohort.installations': 'Mapped installations',
+  'awareness.coverage.viewport': 'CURRENT VIEWPORT ONLY',
+  'awareness.hdg': 'HDG {value}°',
+  'awareness.brg': 'BRG {value}°',
+  'awareness.brgUnknown': 'BRG —',
+  'awareness.crs': 'CRS {value}°',
+  'awareness.reason.feedUnavailable': 'feed unavailable',
+  'awareness.reason.feedStale': 'feed stale',
+  'awareness.reason.nearby': 'observed or mapped nearby context',
+  'awareness.reason.none': 'no observed or mapped objects in current feeds',
+
+  // src/data/regionalBrief.js WMO weather-code labels (cockpit copy).
+  'weather.conditionsUnknown': 'CONDITIONS UNKNOWN',
+  'weather.clear': 'CLEAR',
+  'weather.partlyCloudy': 'PARTLY CLOUDY',
+  'weather.overcast': 'OVERCAST',
+  'weather.fog': 'FOG',
+  'weather.drizzle': 'DRIZZLE',
+  'weather.rain': 'RAIN',
+  'weather.snow': 'SNOW',
+  'weather.rainShowers': 'RAIN SHOWERS',
+  'weather.snowShowers': 'SNOW SHOWERS',
+  'weather.thunderstorm': 'THUNDERSTORM',
+  'weather.mixed': 'MIXED CONDITIONS',
+
+  'missions.roster.keyboardHint': 'TAB PREVIEWS · ENTER / SPACE SELECTS',
+
+  'vessel.awaitingPositions': 'awaiting usable AIS positions…',
+  'vessel.awaitingFirstMessage': 'awaiting first AIS message…',
+  'missions.estDownrange': 'EST. DOWNRANGE',
+};

src/i18n/locales/en/setup.js

@@ -0,0 +1,211 @@
+// English catalog — setup namespace (phase-1 seed).
+//
+// Owns first-launch onboarding, in-app key setup (Provider Settings), scene
+// recipes, and voice-control chrome. Keys are namespace-relative; the registry
+// prefixes them with `setup.`.
+export const NAMESPACE = 'setup';
+
+export default {
+  // index.html #first-run-launcher header/title/choices
+  'firstRun.kicker': 'MISSION CONTROL · FIRST LAUNCH',
+  'firstRun.title': 'Choose your first view',
+  'firstRun.choice.contacts': 'LIVE CONTACTS',
+  'firstRun.suppress': "Don't show this again",
+  // index.html #key-setup-chip / #key-setup dialog
+  'keySetup.chip': 'POWER UP',
+  'keySetup.kicker': 'GROUND STATION · PROVIDER SETTINGS',
+  'keySetup.title': 'Power up the globe',
+  'keySetup.apply': 'SAVE KEYS',
+  // src/keySetup.js submitUpdates() status announcement
+  'keySetup.status.saving': 'Saving…',
+
+  // ── Phase-2 static markup extraction (index.html), appended ──────────────
+  // The shell worker owns ALL index.html static markup in phase 2
+  // (docs/TRANSLATORS.md cross-surface rule); these keys cover the
+  // support-worker surfaces (first-run, key setup, scene director) whose
+  // runtime paths land here in phase 3.
+
+  // index.html #first-run-launcher
+  // Owner-authored persuasive line, pinned verbatim by firstRunExperience.test.mjs
+  // (unspaced em dash included) — keep the exact string when translating.
+  'firstRun.description':
+    'It feels like a forbidden cockpit—then you realize the sources are public and the data is real.',
+  'firstRun.choice.contactsSub': 'Aircraft, vessels and nearby intelligence',
+  'firstRun.choice.spaceMissions': 'SPACE MISSIONS',
+  'firstRun.choice.spaceMissionsSub':
+    'Launches, spacecraft and orbital context',
+  'firstRun.choice.explore': 'EXPLORE MANUALLY',
+  'firstRun.choice.exploreSub': 'Begin with a clean globe',
+  'firstRun.dismissHint': 'ESC to dismiss',
+  // Initial status tip; firstRunExperience.js swaps it for progress/errors.
+  'firstRun.note':
+    'Tip: the GEV MIC button in the dock lets you talk to the map.',
+  // NOT seeded: the environmental tile's <strong>/<small> are pinned verbatim
+  // by firstRunExperience.test.mjs (and the title is painted from
+  // ENVIRONMENTAL_LABEL_CHOICE at init) — the support worker wires them in
+  // phase 3 together with the test update.
+
+  // index.html #key-setup
+  'keySetup.closeAriaLabel': 'Close key setup',
+  'keySetup.description':
+    "The globe already flies keyless. Every key below switches on another real feed — paste one and it's saved into this app's local configuration, then the server restarts itself. Server-side keys stay on this machine; Google Maps and Cesium ion run in the browser and must be provider-restricted. Keys you configured elsewhere are shown but never touched.",
+  'keySetup.hint': 'ESC to close',
+  'keySetup.note':
+    'The Google Maps key buys the photorealistic planet — everything else stacks on top.',
+
+  // index.html scene director panel chrome (src/scenes/director.js surface)
+  'scenes.panelTitle': 'SCENES',
+  'scenes.collapseTitle': 'Collapse panel',
+  'scenes.recipeAriaLabel': 'Scene recipe',
+  'scenes.new': 'NEW',
+  'scenes.delete': 'DEL',
+  'scenes.capture': 'CAPTURE SHOT',
+  'scenes.updateShot': 'UPDATE SHOT',
+  'scenes.start': 'START',
+  'scenes.stop': 'STOP',
+  'scenes.next': 'NEXT',
+  'scenes.exportPresets': 'EXPORT PRESETS',
+  'scenes.import': 'IMPORT',
+  'scenes.runLog': 'RUN LOG',
+  'scenes.statusReady': 'Ready',
+
+  // ── Phase-3 runtime extraction (support surfaces), appended ───────────────
+
+  // src/firstRunExperience.js — mission busy lines and status/error copy.
+  // {detail} is the failed layer-id list (machine values, kept raw).
+  'firstRun.busy.contacts': 'Starting live contacts…',
+  'firstRun.busy.spaceMissions': 'Opening space missions…',
+  'firstRun.busy.environmental': 'Scanning active events…',
+  'firstRun.busy.working': 'Working…',
+  'firstRun.status.failed':
+    'Could not open that mission{detail}. Retry or explore manually.',
+  'firstRun.status.storageBlocked':
+    'This browser is blocking storage, so that could not be saved.',
+  // The environmental tile is painted at init from ENVIRONMENTAL_LABEL_CHOICE;
+  // the subcopy names BOTH feeds (pinned verbatim by firstRunExperience.test.mjs).
+  'firstRun.choice.environmentalSub':
+    'Live earthquakes and active fires, from USGS and NASA',
+  'firstRun.environmentalTitle.environmental': 'ENVIRONMENTAL',
+  'firstRun.environmentalTitle.earthWatch': 'EARTH WATCH',
+  'firstRun.environmentalTitle.activeEvents': 'ACTIVE EVENTS',
+
+  // src/keySetup.js — chip counter, status line, and remove confirm.
+  'keySetup.chipWaiting': {
+    one: 'POWER UP · {count} KEY WAITING',
+    other: 'POWER UP · {count} KEYS WAITING',
+  },
+  'keySetup.chipReady': 'POWERED UP',
+  'keySetup.status.saveFailed': 'Save failed ({status}).',
+  'keySetup.status.saveFailedDetail': 'Save failed: {detail}',
+  'keySetup.status.pasteFirst': 'Paste at least one key first.',
+  'keySetup.status.saved':
+    'Saved to {store}. Restarting — this page reloads itself.',
+  'keySetup.status.removed':
+    'Removed from {store}. Restarting — this page reloads itself.',
+  'keySetup.store.pinokio': 'your app configuration',
+  'keySetup.store.env': 'your local .env',
+  'keySetup.confirm.remove': 'Remove this key from your saved configuration?',
+
+  // src/mapStackChips.js — unavailable-chip tooltip and aria templates.
+  'mapStack.fallbackName': 'This map stack',
+  'mapStack.unavailableReason': '{label} is unavailable',
+  'mapStack.unavailableAriaLabel': '{label} unavailable: {hint}',
+
+  // src/scenes/director.js — built-in recipe DISPLAY names only. Recipe ids
+  // and the URL 'scene' param stay English; stored/renamed project titles are
+  // user data and render verbatim.
+  'scenes.recipe.flightsRadar': 'Global Flights Radar',
+  'scenes.recipe.orbitalWatch': 'Orbital Watch',
+  'scenes.recipe.thermalThreats': 'Thermal Threat Board',
+  'scenes.recipe.cityOverload': 'City Overload',
+  'scenes.recipe.omnisciencePullback': 'Omniscience Pullback',
+
+  // src/voice/gevRealtime.js — mic chrome and connection/execution STATUS
+  // text. Status enum keys (idle/connecting/…) are machine values; tool
+  // names/schemas and model-facing results stay English (keep-English
+  // boundary). Tier badges STD/MINI and the MIC/ON-OFF mic label stay machine
+  // identifiers this phase.
+  'voice.status.idle': 'OFF',
+  'voice.status.connecting': 'CONNECTING',
+  'voice.status.listening': 'LISTENING',
+  'voice.status.executing': 'EXECUTING',
+  'voice.status.error': 'ERROR',
+  'voice.status.sessionCostCap': 'Session ended — cost cap {cost}',
+  'voice.detail.standby': 'VOICE STANDBY',
+  'voice.detail.active': 'VOICE ACTIVE',
+  'voice.detail.unavailable': 'VOICE UNAVAILABLE',
+  'voice.detail.microphoneUnavailable': 'WebRTC microphone support unavailable',
+  'voice.detail.requestingMicrophone': 'Requesting microphone',
+  'voice.detail.holdSpaceTalk': 'Hold Space to talk',
+  'voice.detail.releaseSpaceSend': 'Release Space to send',
+  'voice.detail.askOrCommand': 'Ask or command',
+  'voice.detail.voiceOff': 'Voice off',
+  'voice.detail.runningCommand': 'Running command',
+  'voice.detail.radioDidNotStart': 'Radio did not start',
+  'voice.hint.default':
+    'Hold Space to speak · tap Space to activate focused controls',
+  'voice.error.sessionStart': 'Voice session could not be started.',
+  'voice.error.trayTitle': 'VOICE SYSTEM ERROR',
+  'voice.error.dismiss': 'DISMISS',
+  'voice.error.hint':
+    'Check microphone permission and network access, then try again.',
+  'voice.kicker.agent': 'AI AGENT',
+  'voice.kicker.control': 'VOICE CONTROL',
+  'voice.tier.appliesNextSession': '{tier} applies next session',
+  'voice.tier.buttonTitle': 'Voice model tier — applies next session',
+  'voice.cost.buttonTitle': 'Estimated session cost',
+  'voice.button.ariaLabel':
+    'Voice control — activate to toggle voice; hold Space to speak',
+
+  // ── Stage-4 repair pass: src/scenes/director.js status corpus, appended ───
+  // Status/confirm lines and the default shot title. {scene}/{shot} carry
+  // stored project titles (user data, rendered verbatim); {mode} is the raw
+  // context-mode identifier (machine value, keep-English boundary).
+  'scenes.status.captureCameraNotReady':
+    'Cannot capture shot: camera not ready',
+  'scenes.status.shotTitleDefault': 'Shot {n}',
+  'scenes.status.captured': 'Captured: {scene} / {shot}',
+  'scenes.status.selectShotFirst': 'Select a shot first',
+  'scenes.status.updated': 'Updated: {scene} / {shot}',
+  'scenes.status.deleteShotConfirm': 'Delete shot "{shot}"?',
+  'scenes.status.loaded': 'Loaded: {scene} / {shot}',
+  'scenes.status.cameraUnavailable': 'Camera unavailable — exit cockpit first',
+  'scenes.status.noShotsToRun': 'No shots to run',
+  'scenes.status.runningShot': 'Running {index}/{total}: {scene} / {shot}',
+  'scenes.status.runComplete': 'Scene run complete',
+  'scenes.status.runError': 'Error: {message}',
+  'scenes.status.contextExitFailed':
+    'Could not exit {mode} — scene layers may be refused',
+
+  // ── Stage-4 repair pass: keySetup dev-surface copy, appended ──────────────
+  // src/keySetup.js buildRow() remove chrome (dev-server-only surface).
+  'keySetup.row.remove': 'REMOVE',
+  'keySetup.row.removeTitle': "Remove {title} from this app's saved keys",
+  // src/keySetupCore.mjs keySetupRequirement(): availability sentence naming
+  // the registry env vars (machine values stay raw).
+  'keySetup.requirement': 'Needs {envVars} — add it in Provider Settings',
+  // src/keySetupCore.mjs KEY_SETUP_KEYS `unlocks` copy, keyed by registry id;
+  // en values must stay byte-identical to the registry strings.
+  'keySetup.unlocks.google-maps': 'The photorealistic 3D planet + place search',
+  'keySetup.unlocks.google-maps-server':
+    'Places context + Street View fallback; optional separate key',
+  'keySetup.unlocks.openai': 'Voice control — talk to the planet',
+  'keySetup.unlocks.aisstream': 'Live ships, worldwide',
+  'keySetup.unlocks.firms': 'Live active-fire detections',
+  'keySetup.unlocks.tomtom': 'Real live traffic (keyless runs a simulation)',
+  'keySetup.unlocks.cesium-ion': 'Bing imagery map stacks + world terrain',
+  'keySetup.unlocks.opensky':
+    'More flight-polling credits (anonymous works without)',
+  'keySetup.unlocks.launch-library': 'Higher space-missions request allowance',
+
+  'scenes.status.actionFailed': 'Scene action failed',
+
+  'scenes.status.projectExported': 'Project exported',
+
+  'voice.tierNextSession':
+    'Next session: {pendingId} — this session stays on {modelId}',
+  'voice.tierSwitchHint':
+    'Voice model: {pendingId} — click to switch to {target}; applies next session',
+  'voice.costTooltip':
+    'Estimated session cost on {modelId} — {responses} response(s). Warns at {warn}, ends the session at {cap}.',
+};

src/i18n/locales/en/shell.js

@@ -0,0 +1,82 @@
+// English catalog — shell namespace (phase-1 seed).
+//
+// Owns the global application chrome: title bar, loader status, top-center
+// actions, panel titles, and the shared global status surface. Keys are
+// namespace-relative; the registry in src/i18n/index.js prefixes them with
+// `shell.`. Values are plain strings or { one, other } plural variant objects
+// with named {placeholder} interpolation.
+export const NAMESPACE = 'shell';
+
+export default {
+  // index.html #title-bar .subtitle
+  'title.subtitle': 'NO PLACE LEFT BEHIND',
+  // index.html .loader-status (initial paint)
+  'loading.initialStatus': 'Initializing photorealistic world...',
+  // src/main.js init() loaderStatus writes
+  'loading.status.configuring': 'Configuring viewer...',
+  'loading.status.tilesUnavailable':
+    'Google 3D Tiles unavailable ({detail}). Loading the keyless globe...',
+  'loading.status.flying': 'Flying to Austin, TX...',
+  'loading.status.restoring': 'Restoring shared view...',
+  // index.html #global-loading-label (initial) and
+  // src/loadingFeedback.js presentLoadingFeedback() labels
+  'status.loadingLiveData': 'LOADING LIVE DATA',
+  'status.loadComplete': 'LOAD COMPLETE',
+  'status.loadFailed': 'LOAD FAILED',
+  'status.loadCancelled': 'LOAD CANCELLED',
+  // index.html #traffic-sync-label (initial) and
+  // src/loadingFeedback.js reduceTrafficSyncFeedback() neutral fallback
+  'status.trafficSyncing': 'syncing road network',
+  'status.retryingIn': 'retrying in {seconds}s',
+  'status.retryPending': 'retry pending',
+  // index.html #top-center-actions buttons
+  'actions.clearLayers.ariaLabel': 'Clear selected data layers',
+  'actions.clearLayers.title': 'Turn off all selected data layers',
+  'actions.share.ariaLabel': 'Copy share link',
+  'actions.resetView.ariaLabel': 'Reset to full globe view',
+  // index.html #data-toggles panel header
+  'panels.dataLayers': 'DATA LAYERS',
+  // index.html .panel-collapse-btn on #data-panel
+  'panels.collapseTitle': 'Collapse panel',
+
+  // ── Phase-2 static markup extraction (index.html), appended ──────────────
+  // index.html #command-dock nav region
+  'dock.ariaLabel': 'Navigation, voice, and visual preset controls',
+  // index.html #top-center-actions nav
+  'actions.navAriaLabel': 'Globe actions',
+  'actions.share.title': 'Copy share link',
+  'actions.resetView.title': 'Reset camera and return to full globe view',
+  // index.html #cctv-sync-label (initial); src/ui.js setSplitFlapText() fallback
+  'status.framesLoading': 'loading frames',
+
+  // Locale selector (index.html #control-panel tray): the group container is
+  // static; its buttons are runtime-rendered by ui.js _initLocaleSelector()
+  // from the configured locale pair (keys at the end of this file).
+  'locale.groupAriaLabel': 'Language',
+
+  // ── Phase-3 runtime extraction (support worker), appended ─────────────────
+  // src/main.js init() loaderStatus write sites without a phase-1/2 key.
+  'loading.status.tilesGoogle': 'Loading Google 3D Tiles...',
+  'loading.status.tilesKeyless': 'Loading the keyless globe...',
+  'loading.status.systems': 'Initializing systems...',
+  // src/loadingFeedback.js presentLoadingFeedback() labels beyond the phase-1
+  // seeds. 'OpenStreetMap · Overpass' detail strings are provider names and
+  // stay verbatim at the call site.
+  'status.liveDataOff': 'LIVE DATA OFF',
+  'status.mappedSitesLoaded': 'MAPPED SITES LOADED',
+  'status.retryingMappedSites': 'RETRYING MAPPED SITES',
+  'status.fetchingMappedSites': 'FETCHING MAPPED SITES',
+  'status.turningOffLiveData': 'TURNING OFF LIVE DATA',
+  'status.refreshingLiveData': 'REFRESHING LIVE DATA',
+
+  // ── Configurable locale pair (GEV_DEFAULT_LOCALE / GEV_SECONDARY_LOCALE,
+  // vite.config.js client defines), appended ────────────────────────────
+  // ui.js _initLocaleSelector() renders one runtime button per offered
+  // locale and reads shell.locale.<code>.ariaLabel for its aria-label.
+  // Only SHIPPED locales get a key: each locale PR appends its label to every
+  // shipped catalog (docs/TRANSLATORS.md), so an unshipped locale can never
+  // render a selector button.
+  'locale.en.ariaLabel': 'Switch to English',
+
+  'credits.closeAria': 'Close data attribution',
+};