fix: keep work-status panel reachable when all sections are hidden (#2805)

* fix: keep work-status panel reachable when all sections are hidden

When every section was unchecked in the Panel Sections dialog, the panel
went transparent and inert, making the settings gear icon unreachable.
The only recovery was knowing to toggle the panel off and on from the
header, which still rendered the same empty/inert state.

Changes:
- Panel stays interactive (not inert) when visible, even with zero
  rendered sections. This matches how other panels in the app use inert
  only for visually-collapsed (width/height = 0) states.
- Empty state shows 'No sections selected' with a link to reopen the
  sections dialog, matching the centered text-muted-foreground pattern
  used by the file tree, review panel, and home page empty states.
- Sections dialog gains a 'Show all' link (visible whenever any section
  is hidden) and a warning when all sections are unchecked, matching the
  keybinds settings 'Reset to defaults' pattern.
- Added i18n keys to all 10 locale files (English fallback).

Fixes #2804

* Round 1: fix interactive guard for fresh-mount; translate i18n keys

Address openchamber-bot review findings:

1. (blocker) Replace English fallback strings in all 10 non-English
   locale files with real translations per locale-ui-patterns guidance.

2. (non-blocker) Restore the renderedSections > 0 guard for the
   transient no-data-on-mount state so the panel doesn't flash a bare
   bordered card. The interactive condition is now:
     visible && (renderedSections > 0 || allSectionsHidden)
   Empty-state rendering is gated on allSectionsHidden alone (not
   renderedSections === 0) so it works correctly on fresh mount when
   all sections were already hidden in persisted settings.

Validation:
  tsc --noEmit: 0 errors
  bun test work-status: 34 pass, 0 fail

* Round 2: use .every() guard, dedup chooseLabel key, add tests

1. Replace >= length check with areAllWorkStatusSectionsHidden() helper
   that uses .every() — stale section ids left in persisted settings
   from a future removal can no longer inflate the count.

2. Remove duplicate chooseLabel i18n key from all 11 locales — the
   empty-state link now reuses the existing sections.open key.

3. Add 6 focused tests for areAllWorkStatusSectionsHidden covering
   empty, null/undefined, partial, full, stale-id, and stale+full.

Validation:
  tsc --noEmit: 0 errors
  bun test work-status: 40 pass (6 new), 0 fail

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

@@ -3001,6 +3001,9 @@ export const dict = {
   'chat.workStatus.sections.open': 'Abschnitte wählen',
   'chat.workStatus.sections.dialogTitle': 'Panel-Abschnitte',
   'chat.workStatus.sections.dialogDescription': 'Wähle, was das Arbeitsstatus-Panel zeigt. Ausgeblendete Abschnitte behalten ihre Daten und werden nur nicht angezeigt.',
+  'chat.workStatus.sections.allHidden': 'Keine Abschnitte ausgewählt',
+  'chat.workStatus.sections.showAll': 'Alle anzeigen',
+  'chat.workStatus.sections.noneWarning': 'Das Panel wird leer angezeigt.',
   'header.workStatusPanel.toggleAria': 'Arbeitsstatus-Panel umschalten',
   'header.workStatusPanel.hide': 'Arbeitsstatus ausblenden',
   'header.workStatusPanel.show': 'Arbeitsstatus anzeigen',

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

@@ -3003,6 +3003,9 @@ export const dict = {
   'chat.workStatus.sections.open': 'Choose sections',
   'chat.workStatus.sections.dialogTitle': 'Panel sections',
   'chat.workStatus.sections.dialogDescription': 'Choose what the work-status panel shows. Hidden sections keep their data — they are only left out of the panel.',
+  'chat.workStatus.sections.allHidden': 'No sections selected',
+  'chat.workStatus.sections.showAll': 'Show all',
+  'chat.workStatus.sections.noneWarning': 'The panel will appear empty.',
   'header.workStatusPanel.toggleAria': 'Toggle work-status panel',
   'header.workStatusPanel.hide': 'Hide work status',
   'header.workStatusPanel.show': 'Show work status',

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

@@ -3004,6 +3004,9 @@ export const dict: Record<I18nKey, string> = {
   'chat.workStatus.sections.open': 'Elegir secciones',
   'chat.workStatus.sections.dialogTitle': 'Secciones del panel',
   'chat.workStatus.sections.dialogDescription': 'Elige qué muestra el panel de estado. Las secciones ocultas conservan sus datos: solo no aparecen en el panel.',
+  'chat.workStatus.sections.allHidden': 'Ninguna sección seleccionada',
+  'chat.workStatus.sections.showAll': 'Mostrar todas',
+  'chat.workStatus.sections.noneWarning': 'El panel aparecerá vacío.',
   'header.workStatusPanel.toggleAria': 'Alternar panel de estado',
   'header.workStatusPanel.hide': 'Ocultar estado del trabajo',
   'header.workStatusPanel.show': 'Mostrar estado del trabajo',

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

@@ -3001,6 +3001,9 @@ export const dict = {
   'chat.workStatus.sections.open': 'Choisir les sections',
   'chat.workStatus.sections.dialogTitle': 'Sections du panneau',
   'chat.workStatus.sections.dialogDescription': 'Choisis ce qu\'affiche le panneau d\'état. Les sections masquées conservent leurs données, elles sont seulement absentes du panneau.',
+  'chat.workStatus.sections.allHidden': 'Aucune section sélectionnée',
+  'chat.workStatus.sections.showAll': 'Tout afficher',
+  'chat.workStatus.sections.noneWarning': 'Le panneau apparaîtra vide.',
   'header.workStatusPanel.toggleAria': 'Basculer le panneau d\'état',
   'header.workStatusPanel.hide': 'Masquer l\'état du travail',
   'header.workStatusPanel.show': 'Afficher l\'état du travail',

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

@@ -3003,6 +3003,9 @@ export const dict: Record<I18nKey, string> = {
   'chat.workStatus.sections.open': 'セクションを選択',
   'chat.workStatus.sections.dialogTitle': 'パネルのセクション',
   'chat.workStatus.sections.dialogDescription': '作業状況パネルに表示する内容を選びます。非表示のセクションもデータは保持され、表示されないだけです。',
+  'chat.workStatus.sections.allHidden': 'セクションが選択されていません',
+  'chat.workStatus.sections.showAll': 'すべて表示',
+  'chat.workStatus.sections.noneWarning': 'パネルが空で表示されます。',
   'header.workStatusPanel.toggleAria': '作業状況パネルを切り替え',
   'header.workStatusPanel.hide': '作業状況を非表示',
   'header.workStatusPanel.show': '作業状況を表示',

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

@@ -3003,6 +3003,9 @@ export const dict: Record<I18nKey, string> = {
   'chat.workStatus.sections.open': '섹션 선택',
   'chat.workStatus.sections.dialogTitle': '패널 섹션',
   'chat.workStatus.sections.dialogDescription': '작업 상태 패널에 표시할 항목을 선택하세요. 숨긴 섹션도 데이터는 유지되며 패널에만 나타나지 않습니다.',
+  'chat.workStatus.sections.allHidden': '선택된 섹션 없음',
+  'chat.workStatus.sections.showAll': '모두 표시',
+  'chat.workStatus.sections.noneWarning': '패널이 비어 보입니다.',
   'header.workStatusPanel.toggleAria': '작업 상태 패널 전환',
   'header.workStatusPanel.hide': '작업 상태 숨기기',
   'header.workStatusPanel.show': '작업 상태 표시',

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

@@ -3020,6 +3020,9 @@ export const dict: Record<I18nKey, string> = {
   'chat.workStatus.sections.open': 'Wybierz sekcje',
   'chat.workStatus.sections.dialogTitle': 'Sekcje panelu',
   'chat.workStatus.sections.dialogDescription': 'Wybierz, co pokazuje panel stanu pracy. Ukryte sekcje zachowują swoje dane — po prostu nie są wyświetlane.',
+  'chat.workStatus.sections.allHidden': 'Nie wybrano żadnych sekcji',
+  'chat.workStatus.sections.showAll': 'Pokaż wszystkie',
+  'chat.workStatus.sections.noneWarning': 'Panel będzie wyświetlany jako pusty.',
   'header.workStatusPanel.toggleAria': 'Przełącz panel stanu pracy',
   'header.workStatusPanel.hide': 'Ukryj stan pracy',
   'header.workStatusPanel.show': 'Pokaż stan pracy',

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

@@ -3004,6 +3004,9 @@ export const dict: Record<I18nKey, string> = {
   'chat.workStatus.sections.open': 'Escolher seções',
   'chat.workStatus.sections.dialogTitle': 'Seções do painel',
   'chat.workStatus.sections.dialogDescription': 'Escolha o que o painel de status mostra. Seções ocultas mantêm seus dados — apenas não aparecem no painel.',
+  'chat.workStatus.sections.allHidden': 'Nenhuma seção selecionada',
+  'chat.workStatus.sections.showAll': 'Mostrar todas',
+  'chat.workStatus.sections.noneWarning': 'O painel aparecerá vazio.',
   'header.workStatusPanel.toggleAria': 'Alternar painel de status',
   'header.workStatusPanel.hide': 'Ocultar status do trabalho',
   'header.workStatusPanel.show': 'Mostrar status do trabalho',

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

@@ -3004,6 +3004,9 @@ export const dict: Record<I18nKey, string> = {
   'chat.workStatus.sections.open': 'Обрати секції',
   'chat.workStatus.sections.dialogTitle': 'Секції панелі',
   'chat.workStatus.sections.dialogDescription': 'Обери, що показує панель стану роботи. Приховані секції зберігають свої дані — вони просто не відображаються.',
+  'chat.workStatus.sections.allHidden': 'Жодної секції не вибрано',
+  'chat.workStatus.sections.showAll': 'Показати всі',
+  'chat.workStatus.sections.noneWarning': 'Панель відображатиметься порожньою.',
   'header.workStatusPanel.toggleAria': 'Перемкнути панель стану роботи',
   'header.workStatusPanel.hide': 'Сховати стан роботи',
   'header.workStatusPanel.show': 'Показати стан роботи',

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

@@ -3004,6 +3004,9 @@ export const dict: Record<I18nKey, string> = {
   'chat.workStatus.sections.open': '选择板块',
   'chat.workStatus.sections.dialogTitle': '面板板块',
   'chat.workStatus.sections.dialogDescription': '选择工作状态面板显示的内容。隐藏的板块仍保留数据，只是不再显示。',
+  'chat.workStatus.sections.allHidden': '未选择任何部分',
+  'chat.workStatus.sections.showAll': '全部显示',
+  'chat.workStatus.sections.noneWarning': '面板将显示为空。',
   'header.workStatusPanel.toggleAria': '切换工作状态面板',
   'header.workStatusPanel.hide': '隐藏工作状态',
   'header.workStatusPanel.show': '显示工作状态',

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

@@ -3003,6 +3003,9 @@ export const dict: Record<I18nKey, string> = {
   'chat.workStatus.sections.open': '選擇區塊',
   'chat.workStatus.sections.dialogTitle': '面板區塊',
   'chat.workStatus.sections.dialogDescription': '選擇工作狀態面板顯示的內容。隱藏的區塊仍保留資料，只是不再顯示。',
+  'chat.workStatus.sections.allHidden': '未選擇任何部分',
+  'chat.workStatus.sections.showAll': '全部顯示',
+  'chat.workStatus.sections.noneWarning': '面板將顯示為空。',
   'header.workStatusPanel.toggleAria': '切換工作狀態面板',
   'header.workStatusPanel.hide': '隱藏工作狀態',
   'header.workStatusPanel.show': '顯示工作狀態',