fix(skills): preserve SKILL.md content when renaming

Rename skills by moving the skill directory and updating frontmatter
name instead of recreate-with-stub-description, which wiped the body
and supporting files.

Co-authored-by: Serhii Dziupin <makeittech@users.noreply.github.com>

packages/ui/src/lib/i18n/messages/ko.settings.ts

@@ -688,6 +688,7 @@ export const settingsDict = {
   'settings.skills.sidebar.toast.renameLoadFailed': '스킬 세부 정보를 로드하지 못했습니다',
   'settings.skills.sidebar.toast.removeOldAfterRenameFailed': '이름 변경 후 이전 스킬을 제거하지 못했습니다',
   'settings.skills.sidebar.toast.renameFailed': '스킬 이름을 변경하지 못했습니다',
+  'settings.skills.sidebar.toast.skillRenamed': '스킬 이름이 "{name}"(으)로 변경되었습니다',
   'settings.skills.sidebar.deleteDialog.title': '스킬 삭제',
   'settings.skills.sidebar.deleteDialog.description': '스킬 "{name}"을 삭제하시겠습니까?',
   'settings.skills.sidebar.renameDialog.title': '스킬 이름 변경',