fix(ui): remove redundant committed scope heading

Remove the Committed heading above the Commit option in Walkthrough and delete its unused translations from all 12 locales.

Validation: UI type-check and focused Walkthrough ESLint passed; no references to the removed locale key remain.

packages/ui/src/components/views/walkthrough/WalkthroughView.tsx

@@ -602,9 +602,6 @@ export const WalkthroughView = ({ directory: rootDirectory, visible = true }: Wa
                 </>
               )}
               <DropdownMenuSeparator />
-              <DropdownMenuLabel className={SCOPE_GROUP_LABEL_CLASS}>
-                {t('walkthrough.scope.group.committed')}
-              </DropdownMenuLabel>
               <DropdownMenuRadioItem value="commit">
                 {t('commitComparison.mode')}
               </DropdownMenuRadioItem>

packages/ui/src/lib/i18n/messages/de.ts

@@ -3146,7 +3146,6 @@ export const dict = {
   'contextRail.surface.walkthrough.description': 'Walkthrough-Kontext',
   'walkthrough.scope.all': 'Alle',
   'walkthrough.scope.group.workingTree': 'Arbeitsbaum',
-  'walkthrough.scope.group.committed': 'Eingecheckt',
   'walkthrough.scope.staged': 'Bereitgestellt',
   'walkthrough.scope.working': 'Arbeitsstand',
   'walkthrough.scope.branch': 'Branch',

packages/ui/src/lib/i18n/messages/en.ts

@@ -1226,7 +1226,6 @@ export const dict = {
   'contextRail.surface.walkthrough.description': 'An AI-guided walkthrough of your changes',
   'walkthrough.scope.all': 'All uncommitted',
   'walkthrough.scope.group.workingTree': 'Working tree',
-  'walkthrough.scope.group.committed': 'Committed',
   'walkthrough.scope.staged': 'Staged',
   'walkthrough.scope.working': 'Unstaged',
   'walkthrough.scope.branch': 'This branch',

packages/ui/src/lib/i18n/messages/es.ts

@@ -1227,7 +1227,6 @@ export const dict: Record<I18nKey, string> = {
   "contextRail.surface.walkthrough.description": "Un recorrido por tus cambios guiado por IA",
   "walkthrough.scope.all": "Todo sin confirmar",
   "walkthrough.scope.group.workingTree": "Árbol de trabajo",
-  "walkthrough.scope.group.committed": "Confirmado",
   "walkthrough.scope.staged": "Preparados",
   "walkthrough.scope.working": "Sin preparar",
   "walkthrough.scope.branch": "Esta rama",

packages/ui/src/lib/i18n/messages/fr.ts

@@ -1045,7 +1045,6 @@ export const dict = {
   'contextRail.surface.walkthrough.description': 'Un parcours de vos modifications guidé par l’IA',
   'walkthrough.scope.all': 'Tout non validé',
   'walkthrough.scope.group.workingTree': 'Copie de travail',
-  'walkthrough.scope.group.committed': 'Validé',
   'walkthrough.scope.staged': 'Indexées',
   'walkthrough.scope.working': 'Non indexées',
   'walkthrough.scope.branch': 'Cette branche',

packages/ui/src/lib/i18n/messages/ja.ts

@@ -1223,7 +1223,6 @@ export const dict: Record<I18nKey, string> = {
   'contextRail.surface.walkthrough.description': 'AI による変更のガイド付きウォークスルー',
   'walkthrough.scope.all': '未コミットすべて',
   'walkthrough.scope.group.workingTree': '作業ツリー',
-  'walkthrough.scope.group.committed': 'コミット済み',
   'walkthrough.scope.staged': 'ステージ済み',
   'walkthrough.scope.working': '未ステージ',
   'walkthrough.scope.branch': 'このブランチ',

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

@@ -1227,7 +1227,6 @@ export const dict: Record<I18nKey, string> = {
   'contextRail.surface.walkthrough.description': 'AI가 안내하는 변경 사항 워크스루',
   'walkthrough.scope.all': '커밋되지 않은 전체',
   'walkthrough.scope.group.workingTree': '작업 트리',
-  'walkthrough.scope.group.committed': '커밋됨',
   'walkthrough.scope.staged': '스테이지됨',
   'walkthrough.scope.working': '스테이지 안 됨',
   'walkthrough.scope.branch': '이 브랜치',

packages/ui/src/lib/i18n/messages/pl.ts

@@ -1563,7 +1563,6 @@ export const dict: Record<I18nKey, string> = {
   'contextRail.surface.walkthrough.description': 'Przewodnik po zmianach prowadzony przez AI',
   'walkthrough.scope.all': 'Wszystko niezatwierdzone',
   'walkthrough.scope.group.workingTree': 'Drzewo robocze',
-  'walkthrough.scope.group.committed': 'Zatwierdzone',
   'walkthrough.scope.staged': 'W poczekalni',
   'walkthrough.scope.working': 'Poza poczekalnią',
   'walkthrough.scope.branch': 'Ta gałąź',

packages/ui/src/lib/i18n/messages/pt-BR.ts

@@ -1227,7 +1227,6 @@ export const dict: Record<I18nKey, string> = {
   "contextRail.surface.walkthrough.description": "Um percurso pelas suas mudanças guiado por IA",
   "walkthrough.scope.all": "Tudo sem commit",
   "walkthrough.scope.group.workingTree": "Árvore de trabalho",
-  "walkthrough.scope.group.committed": "Com commit",
   "walkthrough.scope.staged": "No stage",
   "walkthrough.scope.working": "Fora do stage",
   "walkthrough.scope.branch": "Este branch",

packages/ui/src/lib/i18n/messages/tr.ts

@@ -1202,7 +1202,6 @@ export const dict = {
   'contextRail.surface.walkthrough.description': 'Değişikliklerinin AI rehberliğindeki inceleme turu',
   'walkthrough.scope.all': 'Commit edilmemiş tüm değişiklikler',
   'walkthrough.scope.group.workingTree': 'Working tree',
-  'walkthrough.scope.group.committed': 'Commit edilmiş',
   'walkthrough.scope.staged': 'Stage\'lenmiş',
   'walkthrough.scope.working': 'Stage\'lenmemiş',
   'walkthrough.scope.branch': 'Bu branch',

packages/ui/src/lib/i18n/messages/uk.ts

@@ -1227,7 +1227,6 @@ export const dict: Record<I18nKey, string> = {
   "contextRail.surface.walkthrough.description": "Покроковий розбір ваших змін за допомогою AI",
   "walkthrough.scope.all": "Усе незакомічене",
   "walkthrough.scope.group.workingTree": "Робоче дерево",
-  "walkthrough.scope.group.committed": "Закомічене",
   "walkthrough.scope.staged": "В індексі",
   "walkthrough.scope.working": "Поза індексом",
   "walkthrough.scope.branch": "Ця гілка",

packages/ui/src/lib/i18n/messages/zh-CN.ts

@@ -1227,7 +1227,6 @@ export const dict: Record<I18nKey, string> = {
   'contextRail.surface.walkthrough.description': '由 AI 引导的改动导读',
   'walkthrough.scope.all': '全部未提交',
   'walkthrough.scope.group.workingTree': '工作区',
-  'walkthrough.scope.group.committed': '已提交',
   'walkthrough.scope.staged': '已暂存',
   'walkthrough.scope.working': '未暂存',
   'walkthrough.scope.branch': '当前分支',

packages/ui/src/lib/i18n/messages/zh-TW.ts

@@ -1239,7 +1239,6 @@ export const dict: Record<I18nKey, string> = {
   'contextRail.surface.walkthrough.description': '由 AI 引導的變更導讀',
   'walkthrough.scope.all': '全部未提交',
   'walkthrough.scope.group.workingTree': '工作區',
-  'walkthrough.scope.group.committed': '已提交',
   'walkthrough.scope.staged': '已暫存',
   'walkthrough.scope.working': '未暫存',
   'walkthrough.scope.branch': '目前分支',