i18n: fix the final pre-merge review findings

Fixes the P1 and the confirmed P2 findings of the final review of the
i18n branch.

- CI: the air-quality model no longer imports i18n (portable module),
  so check:boundaries passes again.
- Air quality layer: named in the layer panel, HUD and voice; its
  Weather card, bands and errors translate. A test keeps the layer-name
  table in step with the layer registry.
- Layer statuses that still reached ru/es in English: GNSS, CelesTrak,
  Transit loading and feed errors, launches, perimeters, ALPR, ECCC,
  wind "field unavailable", Local ADS-B streaming lines.
- Voice and HUD: preset ids show city names ("Fly to San Francisco"),
  the HUD city translates, cockpit refusals cover frame, aircraft and
  satellite; empty Transit notes translate on the analyst card.
- tn() keeps a caller's formatted count ("12,345 map objects").
- Cyber HUD: the language button no longer covers the bottom-right
  card or the cockpit position readout.
- CCTV buttons wrap only in non-English locales; English layout matches
  main again.
- Switching language asks first when Provider Settings holds unsaved
  keys.

Catalogs: es/ru 2611 messages each, complete.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/layers/airQuality/model.js

@@ -15,14 +15,36 @@
  * Only ECCC's AQHI is implemented here; `AIR_QUALITY_PROVIDERS` is the seam a
  * later provider registers against.
  */
-import { msg } from '../../i18n/index.js';
+// A portable export (package.json): no i18n here. The labels stay English data
+// and the Layers panel shows them translated.
+const msg = (text) => text;
 
 /** Band identifiers shared across providers, in ascending severity. */
 export const AIR_QUALITY_BANDS = Object.freeze([
-  Object.freeze({ id: 'low', label: msg('Low'), color: '#4cc9f0' }),
-  Object.freeze({ id: 'moderate', label: msg('Moderate'), color: '#ffd43b' }),
-  Object.freeze({ id: 'high', label: msg('High'), color: '#ff6b35' }),
-  Object.freeze({ id: 'very-high', label: msg('Very High'), color: '#c1121f' }),
+  Object.freeze({
+    id: 'low',
+    label: msg('Low'),
+    risk: msg('Low health risk'),
+    color: '#4cc9f0',
+  }),
+  Object.freeze({
+    id: 'moderate',
+    label: msg('Moderate'),
+    risk: msg('Moderate health risk'),
+    color: '#ffd43b',
+  }),
+  Object.freeze({
+    id: 'high',
+    label: msg('High'),
+    risk: msg('High health risk'),
+    color: '#ff6b35',
+  }),
+  Object.freeze({
+    id: 'very-high',
+    label: msg('Very High'),
+    risk: msg('Very High health risk'),
+    color: '#c1121f',
+  }),
 ]);
 
 const BAND_BY_ID = new Map(AIR_QUALITY_BANDS.map((band) => [band.id, band]));
@@ -92,7 +114,7 @@ export const AIR_QUALITY_PROVIDERS = Object.freeze({
     scale: 'AQHI',
     label: msg('Air quality'),
     network: 'Environment and Climate Change Canada',
-    coverage: 'Canada only · ECCC AQHI network',
+    coverage: msg('Canada only · ECCC AQHI network'),
     /** ECCC's published band thresholds, evaluated in order. */
     bands: Object.freeze([
       Object.freeze({ id: 'low', max: 3 }),
@@ -162,8 +184,7 @@ export function valueLabel(providerId, value) {
 
 /** Plain-language risk phrase for a band id. */
 export function bandRiskText(bandId) {
-  const band = airQualityBandById(bandId);
-  return band ? `${band.label} health risk` : null;
+  return airQualityBandById(bandId)?.risk ?? null;
 }
 
 /**