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/voice/control.js

@@ -1,6 +1,9 @@
 import { t } from '../i18n/index.js';
 
 /** Build the voice control independently of its connection backend. */
+// The assistant's name on its card. i18n-ignore: product name
+const ASSISTANT_NAME = 'GEV';
+
 export function createVoiceControl({ reset = false } = {}) {
   let root = document.getElementById('gev-voice-control');
   if (root && reset) {
@@ -17,13 +20,13 @@ export function createVoiceControl({ reset = false } = {}) {
         <div class="gev-voice-kicker">${t('AI AGENT')}</div>
         <div id="gev-voice-status">${t('OFF')}</div>
         <div class="gev-voice-cost">
-          <button id="gev-voice-tier" class="gev-voice-tier-btn" type="button" aria-pressed="false" title="${t('Voice model tier — applies next session')}">STD</button>
+          <button id="gev-voice-tier" class="gev-voice-tier-btn" type="button" aria-pressed="false" title="${t('Voice model tier — applies next session')}">${t('STD')}</button>
           <span id="gev-voice-cost-value" class="gev-voice-cost-value" data-level="ok" title="${t('Estimated session cost')}">~$0.00</span>
         </div>
       </div>
       <button id="gev-voice-button" type="button" aria-label="${t('Voice control — activate to toggle voice; hold Space to speak')}" aria-describedby="gev-voice-help">
         <span class="gev-mic-orbit"><img src="/mic.svg" alt="" /></span>
-        <span class="gev-mic-label">ON/OFF</span>
+        <span class="gev-mic-label">${t('ON/OFF')}</span>
       </button>
       <div class="gev-voice-visualizer" aria-hidden="true">
         ${Array.from({ length: 15 }, (_, index) => `<span style="--bar:${index}"></span>`).join('')}
@@ -35,23 +38,23 @@ export function createVoiceControl({ reset = false } = {}) {
         <span class="gev-voice-help-kicker">${t('VOICE CONTROL')}</span>
         <span class="gev-voice-help-detail">${t('Hold Space to speak · tap Space to activate focused controls')}</span>
       </div>
-      <section id="gev-voice-card" class="gev-voice-card" hidden aria-label="Voice assistant">
+      <section id="gev-voice-card" class="gev-voice-card" hidden aria-label="${t('Voice assistant')}">
         <div class="gev-voice-card-header">
-          <span class="gev-voice-card-kicker">VOICE</span>
+          <span class="gev-voice-card-kicker">${t('VOICE')}</span>
           <span id="gev-voice-card-phase" class="gev-voice-card-phase"></span>
-          <button id="gev-voice-card-dismiss" class="gev-voice-card-dismiss" type="button" aria-label="Dismiss voice card">×</button>
+          <button id="gev-voice-card-dismiss" class="gev-voice-card-dismiss" type="button" aria-label="${t('Dismiss voice card')}">×</button>
         </div>
-        <p id="gev-voice-card-user" class="gev-voice-card-caption" data-role="user" hidden><span class="gev-voice-card-who">YOU</span><span id="gev-voice-card-user-text" class="gev-voice-card-text"></span></p>
-        <p id="gev-voice-card-pointer" class="gev-voice-card-pointer" hidden><span id="gev-voice-card-pointer-kind" class="gev-voice-card-who">THIS</span><span class="gev-voice-card-sr">: </span><span id="gev-voice-card-pointer-text" class="gev-voice-card-pointer-label"></span></p>
-        <p id="gev-voice-card-assistant" class="gev-voice-card-caption" data-role="assistant" hidden><span class="gev-voice-card-who">GEV</span><span id="gev-voice-card-assistant-text" class="gev-voice-card-text"></span></p>
-        <ol id="gev-voice-card-plan" class="gev-voice-card-plan" aria-label="Plan" hidden></ol>
+        <p id="gev-voice-card-user" class="gev-voice-card-caption" data-role="user" hidden><span class="gev-voice-card-who">${t('YOU')}</span><span id="gev-voice-card-user-text" class="gev-voice-card-text"></span></p>
+        <p id="gev-voice-card-pointer" class="gev-voice-card-pointer" hidden><span id="gev-voice-card-pointer-kind" class="gev-voice-card-who">${t('THIS')}</span><span class="gev-voice-card-sr">: </span><span id="gev-voice-card-pointer-text" class="gev-voice-card-pointer-label"></span></p>
+        <p id="gev-voice-card-assistant" class="gev-voice-card-caption" data-role="assistant" hidden><span class="gev-voice-card-who">${ASSISTANT_NAME}</span><span id="gev-voice-card-assistant-text" class="gev-voice-card-text"></span></p>
+        <ol id="gev-voice-card-plan" class="gev-voice-card-plan" aria-label="${t('Plan')}" hidden></ol>
         <div id="gev-voice-card-result" class="gev-voice-card-result" hidden>
           <div id="gev-voice-card-result-title" class="gev-voice-card-result-title"></div>
           <div id="gev-voice-card-chips" class="gev-voice-card-chips" hidden></div>
           <ul id="gev-voice-card-lines" class="gev-voice-card-lines"></ul>
-          <ol id="gev-voice-card-referents" class="gev-voice-card-referents" aria-label="Referenced items" hidden></ol>
+          <ol id="gev-voice-card-referents" class="gev-voice-card-referents" aria-label="${t('Referenced items')}" hidden></ol>
           <details id="gev-voice-card-notes" class="gev-voice-card-notes" hidden>
-            <summary>NOTES &amp; SOURCES</summary>
+            <summary>${t('NOTES & SOURCES')}</summary>
             <ul id="gev-voice-card-note-list" class="gev-voice-card-lines"></ul>
           </details>
         </div>