i18n: fix review findings and polish ru/es strings

Fixes the 51 P0–P2 findings from the full review of the i18n branch and
the issues found while checking every new string on screen in ru and es.

- Translate errors and statuses that still reached ru/es in English:
  feed and tile errors, provider statuses, the ALPR chip, the traffic
  mode chip, voice plan step labels, fire feed values, receiver bands,
  scene save reasons and the Cesium attribution link.
- Show preset city names in the UI language (src/ui/placeNames.js);
  data and everything sent to the model stay English.
- Share layer names between the layer panel, HUD and voice card
  (src/ui/layerNames.js).
- Keep long ru/es strings whole: voice card error lines, analyst
  titles, the voice tier status, the Nepal evidence button, the ALPR
  retry chip. English layout is unchanged.
- Ask before a language switch drops unsaved work.
- Catalog fixes: glossary terms (пуск, пресет), gender agreement and
  consistent "peticiones" in es, fewer calques in both languages.
- Fix English text that was itself wrong (e.g. "Exit cockpit to fly to
  a weather", raw tool ids in voice plan steps).

Catalogs: es/ru 2535 messages each, complete.

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

src/layers/radio/playback.js

@@ -1,5 +1,18 @@
+import { msg } from '../../i18n/index.js';
 import { RADIO_VOICE_PLAYBACK_TIMEOUT_MS } from './policy.js';
 
+// Playback errors stay English in layer state; the Radio panel shows them
+// through t().
+const AUDIO_ERROR_STREAM_FAILED = msg(
+  'Broadcaster stream is unavailable or blocked by the browser.',
+);
+const AUDIO_ERROR_GESTURE_REQUIRED = msg(
+  'Playback requires a direct click or tap.',
+);
+const AUDIO_ERROR_START_FAILED = msg(
+  'Broadcaster stream could not be started.',
+);
+
 export function createPlayback({ state: layerState, services, parts, source }) {
   function audioEventBelongsToActiveAttempt(audio) {
     const attempt = layerState._activePlaybackAttempt;
@@ -75,8 +88,7 @@ export function createPlayback({ state: layerState, services, parts, source }) {
       const attempt = layerState._activePlaybackAttempt;
       if (tryRadioFallback(failedId, attempt?.origin, attempt?.id)) return;
       layerState._audioState = 'error';
-      layerState._audioError =
-        'Broadcaster stream is unavailable or blocked by the browser.';
+      layerState._audioError = AUDIO_ERROR_STREAM_FAILED;
       parts.presentation.emitState();
     });
   }
@@ -202,8 +214,8 @@ export function createPlayback({ state: layerState, services, parts, source }) {
       layerState._audioState = 'error';
       layerState._audioError =
         error?.name === 'NotAllowedError'
-          ? 'Playback requires a direct click or tap.'
-          : 'Broadcaster stream could not be started.';
+          ? AUDIO_ERROR_GESTURE_REQUIRED
+          : AUDIO_ERROR_START_FAILED;
       parts.presentation.emitState();
       return false;
     }