fix(i18n): keep English pixel-identical and stored data English

From the English-parity and breakage review against main:
- English wording back to main: "Configured Source", the "SHARED SUBJECT"
  fallback, CCTV calibration "RANGE 120m".
- Voice header and CCTV calibration chip/select tweaks for long labels now
  apply to non-English only (html:not([lang='en'])); English matches main.
  The scene select font change is scoped the same way.
- New scenes and shots store their default title in English ("Scene 3",
  "Shot 2") and translate it when shown, so a title captured in one language
  does not leak into projects, storage or shared JSON.
- Choosing a language with storage blocked keeps it in ?lang instead of
  silently doing nothing.
- One picked import file shows its name again.
- qa-l9-matrix reads the voice state from data-status, not the label.

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

src/i18n/i18n.test.mjs

@@ -188,6 +188,31 @@ test('applyDocumentTranslations translates opted-in text and attributes in place
   assert.equal(unknown.textContent, 'No such message');
 });
 
+test('persistLocaleAndReload keeps the choice in ?lang when storage is blocked', () => {
+  const calls = [];
+  const location = {
+    href: 'https://gev.local/?x=1#scene=a',
+    assign: (url) => calls.push(['assign', url]),
+    reload: () => calls.push(['reload']),
+  };
+  const history = {
+    replaceState: (_s, _t, url) => calls.push(['replace', url]),
+  };
+  const storage = {
+    setItem() {
+      throw new Error('blocked');
+    },
+  };
+  assert.equal(
+    persistLocaleAndReload('ru', { location, history, storage }),
+    true,
+  );
+  assert.deepEqual(calls, [
+    ['replace', 'https://gev.local/?x=1&lang=ru#scene=a'],
+    ['reload'],
+  ]);
+});
+
 test('persistLocaleAndReload stores the choice, keeps the hash, strips ?lang', () => {
   const storage = memoryStorage();
   const calls = [];

src/i18n/index.js

@@ -212,7 +212,7 @@ export function applyDocumentTranslations(doc) {
 /**
  * Persist a locale choice, then reload preserving window.location.hash exactly
  * and stripping ?lang from the search string, so the override is one-shot.
- * Storage is best-effort: where it is blocked the choice will not survive.
+ * Where storage is blocked, ?lang carries the choice instead.
  * @returns {boolean} true when a reload was triggered.
  */
 export function persistLocaleAndReload(
@@ -224,12 +224,14 @@ export function persistLocaleAndReload(
   } = {},
 ) {
   const normalized = normalizeLocale(locale) || DEFAULT_LOCALE;
-  writeStoredLocale(normalized, storage);
+  const stored = writeStoredLocale(normalized, storage);
   if (!location || typeof location.assign !== 'function') return false;
   let target = location.href;
   try {
+    // Without storage the choice only survives in the URL, so keep it there.
     const url = new URL(location.href);
-    url.searchParams.delete('lang');
+    if (stored) url.searchParams.delete('lang');
+    else url.searchParams.set('lang', normalized);
     target = url.href;
   } catch {
     // Keep the current href.

src/i18n/locales/es.json

@@ -2025,5 +2025,8 @@
   "Uses registered content or linked media. Those external files are not included in a scene bundle. Their original notices still apply.": "Usa contenido registrado o medios vinculados. Esos archivos externos no se incluyen en un paquete de escena. Sus avisos originales siguen vigentes.",
   "{state} {layers}": "{state}: {layers}",
   "Selected Space Mission": "Misión espacial seleccionada",
-  "{duration}s + {hold}s": "{duration} s + {hold} s"
+  "{duration}s + {hold}s": "{duration} s + {hold} s",
+  "Configured Source": "Fuente configurada",
+  "subject": "sujeto",
+  "{value}m": "{value} m"
 }

src/i18n/locales/ru.json

@@ -2057,5 +2057,8 @@
   "Uses registered content or linked media. Those external files are not included in a scene bundle. Their original notices still apply.": "Используется зарегистрированный контент или связанные медиафайлы. Эти внешние файлы не входят в архив сцены. Их исходные уведомления по-прежнему действуют.",
   "{state} {layers}": "{state}: {layers}",
   "Selected Space Mission": "Выбранная космическая миссия",
-  "{duration}s + {hold}s": "{duration} с + {hold} с"
+  "{duration}s + {hold}s": "{duration} с + {hold} с",
+  "Configured Source": "Настроенный источник",
+  "subject": "объект",
+  "{value}m": "{value} м"
 }