i18n: fix the LGTM review findings and tidy the branch texts

- i18n scanner: lastError sink, no false sinks on defaults and ternaries
- shared src/i18n/marker.js for modules that only mark strings
- wind field messages move to wind/fields.js; CITY_POIS imports from cityPois.js
- drop review IDs, change history and stale references from comments and docs

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

CHANGELOG.md

@@ -168,12 +168,11 @@
   `t()`, `tn()` (plurals) and `msg()` in code and `data-i18n*` in markup, keyed
   by the English text itself; each language is one flat JSON catalog
   (`src/i18n/locales/ru.json`). The language comes from `?lang=`, the language
-  switch in the Visual Presets dock, then the browser language; English stays
-  the default and the fallback. `npm run i18n`, also run by `npm test`, fails on
-  missing, unused or broken translations. Built on the i18n foundation by
-  @meirm (#601), with the Russian catalog started from #312. It also fails on UI text that is
-  not marked at all, so the whole interface, including surfaces added after
-  the original extraction, is translated (1,679 messages).
+  picker (the globe button in the bottom-right corner), then the browser
+  language; English stays the default and the fallback. `npm run i18n`, also
+  run by `npm test`, fails on missing, unused or broken translations. Built on
+  the i18n foundation by @meirm (#601), with the Russian catalog started
+  from #312. It also fails on UI text that is not marked at all.
 - Street Level counts unique tiles before ranking so overlapping dateline halves
   in polar views do not waste slots in the 16-tile overview budget.