tui: update compaction status message to use Session instead of History across all languages

The compaction message now correctly indicates the current session was compacted rather than the entire history, making it clearer to users which conversation data was optimized.

packages/ui/src/i18n/ko.ts

@@ -60,7 +60,7 @@ export const dict = {
   "ui.sessionTurn.status.consideringNextSteps": "다음 단계 고려 중",
 
   "ui.messagePart.questions.dismissed": "질문 무시됨",
-  "ui.messagePart.compaction": "기록이 압축됨",
+  "ui.messagePart.compaction": "세션 압축됨",
   "ui.messagePart.context.read.one": "{{count}}개 읽음",
   "ui.messagePart.context.read.other": "{{count}}개 읽음",
   "ui.messagePart.context.search.one": "{{count}}개 검색",