UI: render non-play history moves as a dim lowercase tag

Per owner feedback: pass/exchange/resign/timeout rows in the move history now read
as a dim, parenthesised, lowercase tag — e.g. «(обмен)» — so they stand apart from a
scored word. The move.* catalog values are lowercased (resign RU → «сдаюсь»); the
parentheses and the muted colour (var(--text-muted)) are applied in the view via a
.ha.sys modifier.

ui/src/lib/i18n.test.ts

@@ -14,9 +14,9 @@ describe('i18n catalog', () => {
   });
 
   it('localizes move-history action labels', () => {
-    expect(translate('ru', 'move.exchange')).toBe('Обмен');
-    expect(translate('ru', 'move.pass')).toBe('Пас');
-    expect(translate('en', 'move.exchange')).toBe('Exchange');
+    expect(translate('ru', 'move.exchange')).toBe('обмен');
+    expect(translate('ru', 'move.pass')).toBe('пас');
+    expect(translate('en', 'move.exchange')).toBe('exchange');
   });
 
   it('maps error codes to keys with a generic fallback', () => {

ui/src/lib/i18n/en.ts

@@ -88,10 +88,10 @@ export const en = {
   'game.noHintOptions': 'No options with your letters.',
   'game.scores': 'Scores: {n}',
 
-  'move.pass': 'Pass',
-  'move.exchange': 'Exchange',
-  'move.resign': 'Resigned',
-  'move.timeout': 'Timed out',
+  'move.pass': 'pass',
+  'move.exchange': 'exchange',
+  'move.resign': 'resign',
+  'move.timeout': 'timeout',
 
   'result.victory': 'Victory',
   'result.defeat': 'Defeat',

ui/src/lib/i18n/ru.ts

@@ -89,10 +89,10 @@ export const ru: Record<MessageKey, string> = {
   'game.noHintOptions': 'Нет вариантов с вашим набором.',
   'game.scores': 'Очков: {n}',
 
-  'move.pass': 'Пас',
-  'move.exchange': 'Обмен',
-  'move.resign': 'Сдача',
-  'move.timeout': 'Тайм-аут',
+  'move.pass': 'пас',
+  'move.exchange': 'обмен',
+  'move.resign': 'сдаюсь',
+  'move.timeout': 'тайм-аут',
 
   'result.victory': 'Победа',
   'result.defeat': 'Поражение',