i18n: fix the repeat-review findings

- Status pieces translate in one place (src/ui/statusText.js): a Local
  ADS-B error with a single piece now translates, and the analyst card
  splits empty-layer notes into pieces (Transit, Local ADS-B).
- Translate the ALPR retry chip text, the ECCC error on the Air quality
  card, "Upstream response too large" and the "entry {n}" feed label.
- The unmarked-text check also sees error/loadingLabel/statusMessage/
  status assignments, `status:` properties and showToast?.( /
  this._showToast( calls; the scene import preview marks its pack
  statuses, data and model-facing text carry i18n-ignore with a reason.
- Tests check the real code: the HUD locality formatter moves to
  src/hudLocalityFormat.js, the unsaved-keys test pins the teardown.
- One copy each: city names come from src/cityPois.js, the GNSS HTTP
  template and wind "field unavailable" texts; dead fallbacks removed.
- Leftovers of the reverted vessel-label change and the reformatting of
  detectionHost.test.mjs / keySetup.test.mjs are back to main.

Catalogs: es/ru 2617 messages each, complete.

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

src/ui/statusText.test.mjs

@@ -0,0 +1,98 @@
+// Layer status texts arrive as English data and show in the UI language by
+// their shape; English shows exactly as it came.
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { setLocale, t, translateKnown } from '../i18n/index.js';
+import { sourceLabel } from './layerNames.js';
+import {
+  translateFeedError,
+  translateLoadingLabel,
+  translateStatusLine,
+} from './statusText.js';
+import { FEED_SOURCE, COMBINED_SOURCE } from '../layers/localAdsb/status.js';
+import { readResponseTextCapped } from '../sources/httpBody.js';
+
+function inLocale(locale, run) {
+  setLocale(locale);
+  try {
+    return run();
+  } finally {
+    setLocale('en');
+  }
+}
+
+const STATUS_LINES = [
+  'feed 1090 unreachable',
+  'feeds 1090, entry 2 invalid',
+  '3 heard · USB 5.8 msg/s · feed 1090 stale',
+  '2 feeds live · 14 heard',
+  'TTC 0 (95s old)',
+  'TTC 0 · GO Transit 4 (95s old)',
+  'Loading TTC, MiWay',
+];
+
+test('en: status lines and errors show as they came', () => {
+  setLocale('en');
+  for (const text of [
+    ...STATUS_LINES,
+    'ECCC HTTP 503',
+    'GNSS feed unavailable (HTTP 503)',
+    'Upstream response too large',
+  ]) {
+    assert.equal(translateFeedError(text), text);
+    assert.equal(translateStatusLine(text), text);
+    assert.equal(translateLoadingLabel(` ${text} `), text);
+  }
+});
+
+for (const locale of ['es', 'ru']) {
+  test(`${locale}: a lone feed problem translates like a joined one`, () => {
+    inLocale(locale, () => {
+      const lone = translateFeedError('feed 1090 unreachable');
+      assert.doesNotMatch(lone, /unreachable/, lone);
+      assert.equal(
+        translateFeedError('feed 1090 unreachable · 2 heard').split(' · ')[0],
+        lone,
+      );
+    });
+  });
+
+  test(`${locale}: a feed with no band is named in the UI language`, () => {
+    inLocale(locale, () => {
+      const shown = translateFeedError('feeds 1090, entry 2 invalid');
+      assert.doesNotMatch(shown, /\b(entry|invalid)\b/, shown);
+      assert.ok(shown.includes(t('entry {n}', { n: 2 })), shown);
+      assert.ok(shown.includes('1090'), shown);
+    });
+  });
+
+  test(`${locale}: a quiet transit feed keeps its name and numbers`, () => {
+    inLocale(locale, () => {
+      const shown = translateStatusLine('TTC 0 · GO Transit 4 (95s old)');
+      assert.doesNotMatch(shown, /\bold\b/, shown);
+      assert.ok(shown.startsWith('TTC 0 · GO Transit 4 '), shown);
+      assert.ok(shown.includes('95'), shown);
+    });
+  });
+
+  test(`${locale}: an oversized upstream response is translated`, async () => {
+    const response = new Response('x'.repeat(10), {
+      headers: { 'content-length': '10' },
+    });
+    const error = await readResponseTextCapped(response, 4).catch((e) => e);
+    assert.equal(error.message, 'Upstream response too large');
+    inLocale(locale, () => {
+      assert.notEqual(translateKnown(error.message), error.message);
+      assert.equal(translateFeedError(error.message), t(error.message));
+    });
+  });
+
+  test(`${locale}: Local ADS-B source names translate without their own entry`, () => {
+    inLocale(locale, () => {
+      for (const source of [FEED_SOURCE, COMBINED_SOURCE]) {
+        assert.notEqual(t(source), source, 'the catalog has the entry');
+        assert.equal(sourceLabel(source), t(source));
+      }
+    });
+  });
+}