Make the workspace right pane a first-class tab host (#3287)

* feat(app): add persistent workspace side panes

Keep the common review and file-browsing workflow beside the active agent without tearing down pane contents. Workspace tabs now share one compact chip language, assistant file links route into the retained right pane, and diff/file trees share stable geometry.

* fix(app): localize pull request empty state

* test(app): update explorer pane coverage

* fix(app): preserve explorer pane workflows

* test(app): make explorer tab selection idempotent

* fix(app): persist workspace review pins

* fix(app): preserve sidebar scrim drag hook

* fix(app): restore companion pane interactions

* test(app): follow selected sidebar surface

packages/app/src/i18n/resources.test.ts

@@ -129,6 +129,15 @@ describe("translation resources", () => {
     expect(countMatchingEnglishStrings(zhCN)).toBeLessThan(maxFallbackStrings);
   });
 
+  it("localizes the pull request empty state in every supported language", () => {
+    for (const resource of [ar, es, fr, ja, ko, ptBR, ru, zhCN]) {
+      expect(resource.panels.pullRequest.emptyTitle).not.toBe(en.panels.pullRequest.emptyTitle);
+      expect(resource.panels.pullRequest.emptyDescription).not.toBe(
+        en.panels.pullRequest.emptyDescription,
+      );
+    }
+  });
+
   it("preserves interpolation placeholders in every language", () => {
     expect(findInterpolationMismatches(ar)).toEqual([]);
     expect(findInterpolationMismatches(es)).toEqual([]);

packages/app/src/i18n/resources/ar.ts

@@ -587,6 +587,7 @@ export const ar: TranslationResources = {
         renameAgent: "إعادة تسمية الوكيل",
       },
       actions: {
+        newTab: "علامة تبويب جديدة",
         newAgent: "وكيل جديد",
         newTerminal: "محطة جديدة",
         preparingTerminal: "إعداد علامة التبويب المحطة الطرفية",
@@ -595,6 +596,9 @@ export const ar: TranslationResources = {
         exitFocusMode: "إنهاء وضع التركيز",
         splitRight: "تقسيم الجزء الأيمن",
         splitDown: "تقسيم الجزء لأسفل",
+        changes: "التغييرات",
+        files: "الملفات",
+        pullRequest: "طلب السحب",
         terminalProfilesMenu: "Terminal profiles",
         editTerminalProfiles: "Edit profiles…",
         pinTarget: "تثبيت",
@@ -1658,6 +1662,17 @@ export const ar: TranslationResources = {
         reloadMessage: "ستفقد تغييراتك المحلية.",
       },
     },
+    files: {
+      label: "الملفات",
+      subtitle: "ملفات مساحة العمل",
+      tooltip: "تصفح ملفات مساحة العمل",
+    },
+    pullRequest: {
+      label: "طلب السحب",
+      subtitle: "تفاصيل طلب السحب",
+      emptyTitle: "لا يوجد طلب سحب بعد",
+      emptyDescription: "أنشئ طلب سحب لنسخة العمل هذه لعرض تفاصيله هنا.",
+    },
     diff: {
       changesLabel: "التغييرات",
       changesSubtitle: "فروقات شجرة العمل",

packages/app/src/i18n/resources/en.ts

@@ -585,6 +585,7 @@ export const en = {
         renameAgent: "Rename agent",
       },
       actions: {
+        newTab: "New tab",
         newAgent: "New agent",
         newTerminal: "New terminal",
         preparingTerminal: "Preparing terminal tab",
@@ -593,6 +594,9 @@ export const en = {
         exitFocusMode: "Exit focus mode",
         splitRight: "Split pane right",
         splitDown: "Split pane down",
+        changes: "Changes",
+        files: "Files",
+        pullRequest: "Pull request",
         terminalProfilesMenu: "Terminal profiles",
         editTerminalProfiles: "Edit profiles…",
         pinTarget: "Pin",
@@ -1668,6 +1672,17 @@ export const en = {
         reloadMessage: "Your local changes will be lost.",
       },
     },
+    files: {
+      label: "Files",
+      subtitle: "Workspace files",
+      tooltip: "Browse workspace files",
+    },
+    pullRequest: {
+      label: "Pull request",
+      subtitle: "Pull request details",
+      emptyTitle: "No pull request yet",
+      emptyDescription: "Create a pull request for this checkout to see its details here.",
+    },
     diff: {
       changesLabel: "Changes",
       changesSubtitle: "Working tree diff",

packages/app/src/i18n/resources/es.ts

@@ -592,6 +592,7 @@ export const es: TranslationResources = {
         renameAgent: "Cambiar nombre del agente",
       },
       actions: {
+        newTab: "Nueva pestaña",
         newAgent: "Nuevo agente",
         newTerminal: "Nueva terminal",
         preparingTerminal: "Preparando la pestaña del terminal",
@@ -600,6 +601,9 @@ export const es: TranslationResources = {
         exitFocusMode: "Salir del modo de concentración",
         splitRight: "Panel dividido a la derecha",
         splitDown: "Dividir panel hacia abajo",
+        changes: "Cambios",
+        files: "Archivos",
+        pullRequest: "Solicitud de extracción",
         terminalProfilesMenu: "Terminal profiles",
         editTerminalProfiles: "Edit profiles…",
         pinTarget: "Fijar",
@@ -1701,6 +1705,17 @@ export const es: TranslationResources = {
         reloadMessage: "Se perderán tus cambios locales.",
       },
     },
+    files: {
+      label: "Archivos",
+      subtitle: "Archivos del espacio de trabajo",
+      tooltip: "Explorar archivos del espacio de trabajo",
+    },
+    pullRequest: {
+      label: "Solicitud de extracción",
+      subtitle: "Detalles de la solicitud de extracción",
+      emptyTitle: "Aún no hay ninguna solicitud de extracción",
+      emptyDescription: "Crea una solicitud para este checkout y consulta aquí sus detalles.",
+    },
     diff: {
       changesLabel: "Cambios",
       changesSubtitle: "Diferencias del árbol de trabajo",

packages/app/src/i18n/resources/fr.ts

@@ -592,6 +592,7 @@ export const fr: TranslationResources = {
         renameAgent: "Renommer l'agent",
       },
       actions: {
+        newTab: "Nouvel onglet",
         newAgent: "Nouvel agent",
         newTerminal: "Nouveau terminal",
         preparingTerminal: "Préparation de l'onglet du terminal",
@@ -600,6 +601,9 @@ export const fr: TranslationResources = {
         exitFocusMode: "Quitter le mode concentration",
         splitRight: "Volet divisé à droite",
         splitDown: "Diviser le volet vers le bas",
+        changes: "Modifications",
+        files: "Fichiers",
+        pullRequest: "Demande de fusion",
         terminalProfilesMenu: "Terminal profiles",
         editTerminalProfiles: "Edit profiles…",
         pinTarget: "Épingler",
@@ -1705,6 +1709,18 @@ export const fr: TranslationResources = {
         reloadMessage: "Vos modifications locales seront perdues.",
       },
     },
+    files: {
+      label: "Fichiers",
+      subtitle: "Fichiers de l’espace de travail",
+      tooltip: "Parcourir les fichiers de l’espace de travail",
+    },
+    pullRequest: {
+      label: "Demande de fusion",
+      subtitle: "Détails de la demande de fusion",
+      emptyTitle: "Aucune demande de fusion pour le moment",
+      emptyDescription:
+        "Créez une demande de fusion pour cette copie de travail afin d’afficher ses détails ici.",
+    },
     diff: {
       changesLabel: "Modifications",
       changesSubtitle: "Différences de l'arbre de travail",

packages/app/src/i18n/resources/ja.ts

@@ -592,6 +592,7 @@ export const ja: TranslationResources = {
         renameAgent: "エージェントの名前を変更",
       },
       actions: {
+        newTab: "新しいタブ",
         newAgent: "新しいエージェント",
         newTerminal: "新しいターミナル",
         preparingTerminal: "ターミナルタブを準備中",
@@ -600,6 +601,9 @@ export const ja: TranslationResources = {
         exitFocusMode: "フォーカスモードを終了",
         splitRight: "右にペインを分割",
         splitDown: "下にペインを分割",
+        changes: "変更",
+        files: "ファイル",
+        pullRequest: "プルリクエスト",
         terminalProfilesMenu: "ターミナルプロファイル",
         editTerminalProfiles: "プロファイルを編集…",
         pinTarget: "ピン留め",
@@ -1674,6 +1678,18 @@ export const ja: TranslationResources = {
         reloadMessage: "ローカルの変更は失われます。",
       },
     },
+    files: {
+      label: "ファイル",
+      subtitle: "ワークスペースのファイル",
+      tooltip: "ワークスペースのファイルを参照",
+    },
+    pullRequest: {
+      label: "プルリクエスト",
+      subtitle: "プルリクエストの詳細",
+      emptyTitle: "プルリクエストはまだありません",
+      emptyDescription:
+        "このチェックアウトのプルリクエストを作成すると、ここに詳細が表示されます。",
+    },
     diff: {
       changesLabel: "変更",
       changesSubtitle: "作業ツリーの差分",

packages/app/src/i18n/resources/ko.ts

@@ -589,6 +589,7 @@ export const ko: TranslationResources = {
         renameAgent: "에이전트 이름 변경",
       },
       actions: {
+        newTab: "새 탭",
         newAgent: "새 에이전트",
         newTerminal: "새 터미널",
         preparingTerminal: "터미널 탭 준비 중",
@@ -597,6 +598,9 @@ export const ko: TranslationResources = {
         exitFocusMode: "집중 모드 종료",
         splitRight: "창을 오른쪽으로 분할",
         splitDown: "창을 아래로 분할",
+        changes: "변경 사항",
+        files: "파일",
+        pullRequest: "풀 리퀘스트",
         terminalProfilesMenu: "터미널 프로필",
         editTerminalProfiles: "프로필 편집…",
         pinTarget: "고정",
@@ -1668,6 +1672,17 @@ export const ko: TranslationResources = {
         reloadMessage: "로컬 변경사항이 손실됩니다.",
       },
     },
+    files: {
+      label: "파일",
+      subtitle: "워크스페이스 파일",
+      tooltip: "워크스페이스 파일 탐색",
+    },
+    pullRequest: {
+      label: "풀 리퀘스트",
+      subtitle: "풀 리퀘스트 세부 정보",
+      emptyTitle: "아직 풀 리퀘스트가 없습니다",
+      emptyDescription: "이 체크아웃에 풀 리퀘스트를 만들면 세부 정보가 여기에 표시됩니다.",
+    },
     diff: {
       changesLabel: "변경 사항",
       changesSubtitle: "작업 트리 diff",

packages/app/src/i18n/resources/pt-BR.ts

@@ -591,6 +591,7 @@ export const ptBR: TranslationResources = {
         renameAgent: "Renomear agente",
       },
       actions: {
+        newTab: "Nova aba",
         newAgent: "Novo agente",
         newTerminal: "Novo terminal",
         preparingTerminal: "Preparando aba de terminal",
@@ -599,6 +600,9 @@ export const ptBR: TranslationResources = {
         exitFocusMode: "Sair do modo de foco",
         splitRight: "Dividir painel à direita",
         splitDown: "Dividir painel abaixo",
+        changes: "Alterações",
+        files: "Arquivos",
+        pullRequest: "Pull request",
         terminalProfilesMenu: "Perfis de terminal",
         editTerminalProfiles: "Editar perfis…",
         pinTarget: "Fixar",
@@ -1687,6 +1691,17 @@ export const ptBR: TranslationResources = {
         reloadMessage: "Suas alterações locais serão perdidas.",
       },
     },
+    files: {
+      label: "Arquivos",
+      subtitle: "Arquivos do espaço de trabalho",
+      tooltip: "Explorar arquivos do espaço de trabalho",
+    },
+    pullRequest: {
+      label: "Pull request",
+      subtitle: "Detalhes do pull request",
+      emptyTitle: "Ainda não há pull request",
+      emptyDescription: "Crie um pull request para este checkout para ver os detalhes aqui.",
+    },
     diff: {
       changesLabel: "Alterações",
       changesSubtitle: "Diff da árvore de trabalho",

packages/app/src/i18n/resources/ru.ts

@@ -591,6 +591,7 @@ export const ru: TranslationResources = {
         renameAgent: "Переименовать агента",
       },
       actions: {
+        newTab: "Новая вкладка",
         newAgent: "Новый агент",
         newTerminal: "Новый терминал",
         preparingTerminal: "Подготовка вкладки терминала",
@@ -599,6 +600,9 @@ export const ru: TranslationResources = {
         exitFocusMode: "Выйти из режима фокусировки",
         splitRight: "Разделить панель справа",
         splitDown: "Разделить панель вниз",
+        changes: "Изменения",
+        files: "Файлы",
+        pullRequest: "Запрос на слияние",
         terminalProfilesMenu: "Terminal profiles",
         editTerminalProfiles: "Edit profiles…",
         pinTarget: "Закрепить",
@@ -1692,6 +1696,18 @@ export const ru: TranslationResources = {
         reloadMessage: "Локальные изменения будут потеряны.",
       },
     },
+    files: {
+      label: "Файлы",
+      subtitle: "Файлы рабочего пространства",
+      tooltip: "Просмотр файлов рабочего пространства",
+    },
+    pullRequest: {
+      label: "Запрос на слияние",
+      subtitle: "Сведения о запросе на слияние",
+      emptyTitle: "Запроса на слияние пока нет",
+      emptyDescription:
+        "Создайте запрос на слияние для этой рабочей копии, чтобы увидеть здесь его сведения.",
+    },
     diff: {
       changesLabel: "Изменения",
       changesSubtitle: "Различия рабочего дерева",

packages/app/src/i18n/resources/zh-CN.ts

@@ -587,6 +587,7 @@ export const zhCN: TranslationResources = {
         renameAgent: "重命名 Agent",
       },
       actions: {
+        newTab: "新建标签页",
         newAgent: "新建 Agent",
         newTerminal: "新建 Terminal",
         preparingTerminal: "正在准备 Terminal 标签",
@@ -595,6 +596,9 @@ export const zhCN: TranslationResources = {
         exitFocusMode: "退出专注模式",
         splitRight: "向右拆分窗格",
         splitDown: "向下拆分窗格",
+        changes: "更改",
+        files: "文件",
+        pullRequest: "拉取请求",
         terminalProfilesMenu: "Terminal profiles",
         editTerminalProfiles: "Edit profiles…",
         pinTarget: "固定",
@@ -1638,6 +1642,17 @@ export const zhCN: TranslationResources = {
         reloadMessage: "本地更改将丢失。",
       },
     },
+    files: {
+      label: "文件",
+      subtitle: "工作区文件",
+      tooltip: "浏览工作区文件",
+    },
+    pullRequest: {
+      label: "拉取请求",
+      subtitle: "拉取请求详情",
+      emptyTitle: "尚无拉取请求",
+      emptyDescription: "为此检出创建拉取请求后，可在此处查看其详情。",
+    },
     diff: {
       changesLabel: "更改",
       changesSubtitle: "工作区差异",