fix(legal): translate the offer price-list headings in the English view

The price list is spliced in Russian; the client-side offer transliteration turned its section headings and column headers into transliteration too. Translate the known backend-projected strings (the two section headings and the column headers Наименование/Рубли/Голоса в VK/Stars в Telegram/«Фишки») to English and transliterate only the product names, as requested.

ui/src/lib/offer.ts

@@ -177,8 +177,18 @@ export function renderLegalHtml(doc: { ru: LegalDoc; en: LegalDoc; canonical: st
         var langBtn = document.getElementById('legal-lang');
         var themeBtn = document.getElementById('legal-theme');
 
-        // Offer only: the price list is spliced in Russian, so transliterate the Cyrillic that
-        // survives in the English body (the product names) to keep it in-language.
+        // Offer only: the price list is spliced in Russian. Its section headings and column headers
+        // are translated to English (PRICE_TR — the exact strings the backend projects); the product
+        // names fall through to transliteration.
+        var PRICE_TR = {
+          'Приобретение внутриигровой валюты «Фишка»:': 'Purchase of the «Chip» in-game currency:',
+          'Использование внутриигровой валюты «Фишка»:': 'Use of the «Chip» in-game currency:',
+          'Наименование': 'Item',
+          'Рубли': 'Roubles',
+          'Голоса в VK': 'VK Votes',
+          'Stars в Telegram': 'Telegram Stars',
+          '«Фишки»': '«Chips»'
+        };
         function translit(s) {
           var m = { 'а':'a','б':'b','в':'v','г':'g','д':'d','е':'e','ё':'e','ж':'zh','з':'z','и':'i',
             'й':'y','к':'k','л':'l','м':'m','н':'n','о':'o','п':'p','р':'r','с':'s','т':'t','у':'u',
@@ -193,8 +203,10 @@ export function renderLegalHtml(doc: { ru: LegalDoc; en: LegalDoc; canonical: st
         function translitEn() {
           var en = document.querySelector('main[data-lang="en"]');
           if (!en || !document.createTreeWalker) return;
-          var w = document.createTreeWalker(en, NodeFilter.SHOW_TEXT, null, false), n;
+          var w = document.createTreeWalker(en, NodeFilter.SHOW_TEXT, null, false), n, tr;
           while ((n = w.nextNode())) {
+            tr = PRICE_TR[n.nodeValue];
+            if (typeof tr === 'string') { n.nodeValue = tr; continue; }
             if (/[а-яё]/i.test(n.nodeValue)) n.nodeValue = translit(n.nodeValue);
           }
         }