feat(i18n): translate the whole interface

Mark every UI string the unmarked-text check reported (534) plus text it
cannot see (helpers, joined labels, runtime-built panels), and translate
the result to Spanish and Russian: 1,679 messages each.

- Kept on purpose, with the reason where the text lives: provider and
  product names, place and camera names, codes and units, dB values, the HUD
  terminal readouts, demo shot titles that saved projects look up by title,
  and text for AI tools and the voice model.
- Modules shared with the server or AI tools stay free of the i18n import
  (local msg); the wind reading and voice session stay English and are
  translated where the page shows them.
- npm test now runs the unmarked-text check.
- Fixes on the way: a duplicated radio privacy paragraph, the contact panel
  toggle saying Expand while open, the CSS filter mistaking & for CSS.

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

src/scenes/nepalEvidencePack.js

@@ -7,6 +7,7 @@ import { SOURCE_PATH_BEAT_IDS } from '../data/bhoteKoshiShotPaths.js';
 const ADDITIONAL_SHOTS = [
   {
     id: 'second-landslide',
+    // i18n-ignore: shot title (mostly a place name), matched by title on upgrade
     title: 'Second landslide',
     lat: 28.399234,
     lon: 85.535806,
@@ -17,6 +18,7 @@ const ADDITIONAL_SHOTS = [
   },
   {
     id: 'dhunche',
+    // i18n-ignore: shot title (mostly a place name), matched by title on upgrade
     title: 'Dhunche',
     lat: 28.161431,
     lon: 85.324278,
@@ -27,6 +29,7 @@ const ADDITIONAL_SHOTS = [
   },
   {
     id: 'mailung-upper-trishuli',
+    // i18n-ignore: shot title (mostly a place name), matched by title on upgrade
     title: 'Mailung / Upper Trishuli bridge',
     lat: 28.140642,
     lon: 85.265996,
@@ -37,6 +40,7 @@ const ADDITIONAL_SHOTS = [
   },
   {
     id: 'mailung-bazzar',
+    // i18n-ignore: shot title (mostly a place name), matched by title on upgrade
     title: 'Mailung Bazzar, Dandaguan',
     lat: 28.126526,
     lon: 85.248027,
@@ -47,6 +51,7 @@ const ADDITIONAL_SHOTS = [
   },
   {
     id: 'dandagaun',
+    // i18n-ignore: shot title (mostly a place name), matched by title on upgrade
     title: 'Dandagaun, Rasuwa',
     lat: 28.124424,
     lon: 85.245154,
@@ -57,6 +62,7 @@ const ADDITIONAL_SHOTS = [
   },
   {
     id: 'dandagaun-viewpoint',
+    // i18n-ignore: shot title (mostly a place name), matched by title on upgrade
     title: 'Dandagaun viewpoint restaurant',
     lat: 28.086663,
     lon: 85.229914,
@@ -67,6 +73,7 @@ const ADDITIONAL_SHOTS = [
   },
   {
     id: 'betrawati-bazaar',
+    // i18n-ignore: shot title (mostly a place name), matched by title on upgrade
     title: 'Betrawati Bazaar',
     lat: 28.029827,
     lon: 85.227694,
@@ -77,6 +84,7 @@ const ADDITIONAL_SHOTS = [
   },
   {
     id: 'bhainse',
+    // i18n-ignore: shot title (mostly a place name), matched by title on upgrade
     title: 'Bhainse',
     lat: 28.023087,
     lon: 85.229449,
@@ -87,6 +95,7 @@ const ADDITIONAL_SHOTS = [
   },
   {
     id: 'devighat-taadi-khola-bridge',
+    // i18n-ignore: shot title (mostly a place name), matched by title on upgrade
     title: 'Devighat / Taadi Khola Bridge',
     lat: 27.921132,
     lon: 85.177113,
@@ -97,6 +106,7 @@ const ADDITIONAL_SHOTS = [
   },
   {
     id: 'charaudi',
+    // i18n-ignore: shot title (mostly a place name), matched by title on upgrade
     title: 'Charaudi',
     lat: 27.865095,
     lon: 84.838424,
@@ -107,6 +117,7 @@ const ADDITIONAL_SHOTS = [
   },
   {
     id: 'final-view',
+    // i18n-ignore: shot title (mostly a place name), matched by title on upgrade
     title: 'Final view',
     lat: 28.0834,
     lon: 85.206,
@@ -340,6 +351,7 @@ export function expandNepalEvidencePack(base) {
     shotPatches: [
       ...(base.shotPatches || []),
       {
+        // i18n-ignore: shot title (mostly a place name), matched by title on upgrade
         title: 'Final view',
         layers: finalView.layers,
       },