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/i18n/index.js

@@ -94,11 +94,13 @@ export function t(text, values) {
 /**
  * Translate a count-dependent message. The catalog entry for `other` holds
  * one form per Intl.PluralRules category of the locale ({ one, few, many, other }
- * for Russian). `{count}` is always available to the pattern.
+ * for Russian). `{count}` is always available to the pattern: the raw number,
+ * unless `values.count` gives its display text, e.g. `formatNumber(n)`.
  * @param {number} count
  * @param {string} one English singular, e.g. '{count} camera'
  * @param {string} other English plural, e.g. '{count} cameras'
- * @param {object} [values] Extra interpolation values
+ * @param {object} [values] Extra interpolation values; a `count` here is
+ *   shown in place of the number (the plural form still follows `count`)
  * @returns {string}
  */
 export function tn(count, one, other, values) {
@@ -111,7 +113,7 @@ export function tn(count, one, other, values) {
   } else {
     pattern = pluralRules(DEFAULT_LOCALE).select(count) === 'one' ? one : other;
   }
-  return interpolate(pattern, { ...values, count });
+  return interpolate(pattern, { count, ...values });
 }
 
 /**