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/wind/fieldUnavailableLocale.test.mjs

@@ -0,0 +1,21 @@
+// N-09: a scalar overlay that cannot be drawn reports a marked English status
+// (rendering.js), which the Wind row shows through t() in the UI language.
+import test from 'node:test';
+import assert from 'node:assert/strict';
+import { setLocale, t } from '../../i18n/index.js';
+import { WIND_FIELDS } from './fields.js';
+import { fieldUnavailableText } from './rendering.js';
+
+for (const locale of ['es', 'ru']) {
+  test(`${locale}: every field's unavailable status has a translation`, () => {
+    setLocale(locale);
+    try {
+      const english = Object.keys(WIND_FIELDS)
+        .map(fieldUnavailableText)
+        .filter((text) => t(text) === text);
+      assert.deepEqual(english, []);
+    } finally {
+      setLocale('en');
+    }
+  });
+}

src/layers/wind/rendering.js

@@ -14,6 +14,19 @@ import {
   windTrailColor,
 } from './fields.js';
 
+// A scalar overlay that cannot be drawn, in English for diagnostics; the
+// panel status shows it translated (index.js). The scalar texts are the ones
+// the source reports (source.js).
+const FIELD_UNAVAILABLE = Object.freeze({
+  speed: msg('Wind speed field unavailable'),
+  temperature: msg('Temperature field unavailable'),
+  pressure: msg('Mean sea level pressure field unavailable'),
+});
+
+/** English status for a scalar overlay with no drawable field. */
+export function fieldUnavailableText(overlay) {
+  return FIELD_UNAVAILABLE[overlay] || `${overlay} field unavailable`;
+}
 const WIND_FIELD_FADE_HIGH_METERS = 1_200_000;
 const WIND_FIELD_FADE_LOW_METERS = 200_000;
 const WIND_FIELD_LOG_RANGE = Math.log(
@@ -337,7 +350,7 @@ export function createWindRendering({
     }
     const raster = createFieldRaster(snapshot, overlay);
     if (!raster) {
-      imageryError = `${overlay} field unavailable`;
+      imageryError = fieldUnavailableText(overlay);
       return;
     }
     if (