fix(i18n): align Russian locale with dev

frontend/scripts/check-i18n-parity.mjs

@@ -382,6 +382,18 @@ const TR_COGNATES = [
   '{{filament}} @ {{temp}}°C',  // drying badge: filament code + universal °C
 ];
 
+const RU_COGNATES = [
+  'MakerWorld: {{designer}}',
+  'email',
+  '{{printer}}: {{error}}',
+  'Bambu Cloud',
+  'Orca Cloud',
+  '{{name}} — {{stage}} ({{percent}}%) — {{elapsed}}',
+  'EC984C,#6CD4BC,A66EB9,D87694',
+  '({{count}}/8)',
+  '(25%, 50%, 75%)',
+];
+
 const IDENTICAL_TO_EN_ALLOWED = {
   de: new Set(DE_COGNATES),
   fr: new Set(FR_COGNATES),
@@ -393,6 +405,7 @@ const IDENTICAL_TO_EN_ALLOWED = {
   'zh-CN': new Set(ZH_CN_COGNATES),
   'zh-TW': new Set(ZH_TW_COGNATES),
   tr: new Set(TR_COGNATES),
+  ru: new Set(RU_COGNATES),
 };
 
 // Pure comparison logic, exported so tests can verify each failure mode