feat(ui): add a desktop panel rail to each sidebar

Each side stack hosts a Vue rail listing its panels; selecting one opens it
through PanelChrome. The shell owns one Vue runtime and Pinia instance, and a
panel store mirrors each side's panels from the DOM. The rail hides with its
stack, in Cockpit, clean view and recording, and on phones. Panels without a
catalog entry get a generic item, and Data Layers leaves the rail while the
f shortcut hides it.

src/i18n/locales/de.json

@@ -2943,5 +2943,7 @@
   "Load scenes from an exported JSON file": "Szenen aus einer exportierten JSON-Datei laden",
   "Download the timing log of the last play": "Zeitprotokoll der letzten Wiedergabe herunterladen",
   "Edit anchors, data packs and shot details": "Anker, Datenpakete und Aufnahmedetails bearbeiten",
-  "Download this scene as JSON or an asset bundle": "Diese Szene als JSON oder Asset-Bundle herunterladen"
+  "Download this scene as JSON or an asset bundle": "Diese Szene als JSON oder Asset-Bundle herunterladen",
+  "Left panels": "Linke Panels",
+  "Right panels": "Rechte Panels"
 }

src/i18n/locales/es.json

@@ -3013,5 +3013,7 @@
   "Play from this scene through the rest of the project": "Reproduce desde esta escena hasta el resto del proyecto",
   "Play the shot after the selected one, moving on to the next scene when needed": "Reproduce el plano posterior al seleccionado y pasa a la siguiente escena si hace falta",
   "Edit anchors, data packs and shot details": "Edita anclas, paquetes de datos y detalles de los planos",
-  "Download this scene as JSON or an asset bundle": "Descarga esta escena como JSON o como paquete de recursos"
+  "Download this scene as JSON or an asset bundle": "Descarga esta escena como JSON o como paquete de recursos",
+  "Left panels": "Paneles izquierdos",
+  "Right panels": "Paneles derechos"
 }

src/i18n/locales/fr.json

@@ -3013,5 +3013,7 @@
   "Load scenes from an exported JSON file": "Charger des scènes depuis un fichier JSON exporté",
   "Download the timing log of the last play": "Télécharger le journal de minutage de la dernière lecture",
   "Edit anchors, data packs and shot details": "Modifier les ancres, les paquets de données et les détails des plans",
-  "Download this scene as JSON or an asset bundle": "Télécharger cette scène en JSON ou en archive de ressources"
+  "Download this scene as JSON or an asset bundle": "Télécharger cette scène en JSON ou en archive de ressources",
+  "Left panels": "Panneaux de gauche",
+  "Right panels": "Panneaux de droite"
 }

src/i18n/locales/it.json

@@ -3013,5 +3013,7 @@
   "Load scenes from an exported JSON file": "Carica le scene da un file JSON esportato",
   "Download the timing log of the last play": "Scarica il log dei tempi dell'ultima riproduzione",
   "Edit anchors, data packs and shot details": "Modifica ancore, pacchetti dati e dettagli degli scatti",
-  "Download this scene as JSON or an asset bundle": "Scarica questa scena come JSON o pacchetto di risorse"
+  "Download this scene as JSON or an asset bundle": "Scarica questa scena come JSON o pacchetto di risorse",
+  "Left panels": "Pannelli a sinistra",
+  "Right panels": "Pannelli a destra"
 }

src/i18n/locales/ja.json

@@ -2873,5 +2873,7 @@
   "Load scenes from an exported JSON file": "書き出したJSONファイルからシーンを読み込む",
   "Download the timing log of the last play": "前回の再生のタイミングログをダウンロード",
   "Edit anchors, data packs and shot details": "アンカー、データパック、ショットの詳細を編集",
-  "Download this scene as JSON or an asset bundle": "このシーンをJSONまたはアセットバンドルとしてダウンロード"
+  "Download this scene as JSON or an asset bundle": "このシーンをJSONまたはアセットバンドルとしてダウンロード",
+  "Left panels": "左パネル",
+  "Right panels": "右パネル"
 }

src/i18n/locales/pt.json

@@ -3013,5 +3013,7 @@
   "Load scenes from an exported JSON file": "Carregar cenas de um arquivo JSON exportado",
   "Download the timing log of the last play": "Baixar o registro de tempos da última reprodução",
   "Edit anchors, data packs and shot details": "Editar âncoras, pacotes de dados e detalhes dos planos",
-  "Download this scene as JSON or an asset bundle": "Baixar esta cena como JSON ou pacote de recursos"
+  "Download this scene as JSON or an asset bundle": "Baixar esta cena como JSON ou pacote de recursos",
+  "Left panels": "Painéis à esquerda",
+  "Right panels": "Painéis à direita"
 }

src/i18n/locales/ru.json

@@ -3083,5 +3083,7 @@
   "Play from this scene through the rest of the project": "Воспроизвести с этой сцены и далее по всему проекту",
   "Play the shot after the selected one, moving on to the next scene when needed": "Воспроизвести кадр после выбранного, при необходимости перейдя к следующей сцене",
   "Edit anchors, data packs and shot details": "Изменить якоря, пакеты данных и параметры кадров",
-  "Download this scene as JSON or an asset bundle": "Скачать эту сцену в формате JSON или архивом ресурсов"
+  "Download this scene as JSON or an asset bundle": "Скачать эту сцену в формате JSON или архивом ресурсов",
+  "Left panels": "Левые панели",
+  "Right panels": "Правые панели"
 }

src/i18n/locales/uk.json

@@ -3083,5 +3083,7 @@
   "Load scenes from an exported JSON file": "Завантажити сцени з експортованого файлу JSON",
   "Download the timing log of the last play": "Завантажити журнал таймінгів останнього відтворення",
   "Edit anchors, data packs and shot details": "Змінити якорі, пакети даних і параметри кадрів",
-  "Download this scene as JSON or an asset bundle": "Завантажити цю сцену у форматі JSON або архівом ресурсів"
+  "Download this scene as JSON or an asset bundle": "Завантажити цю сцену у форматі JSON або архівом ресурсів",
+  "Left panels": "Ліві панелі",
+  "Right panels": "Праві панелі"
 }

src/i18n/locales/zh-CN.json

@@ -2873,5 +2873,7 @@
   "Play from this scene through the rest of the project": "从此场景开始播放项目中的其余场景",
   "Play the shot after the selected one, moving on to the next scene when needed": "播放所选镜头的下一个镜头，必要时进入下一个场景",
   "Edit anchors, data packs and shot details": "编辑锚点、数据包和镜头详情",
-  "Download this scene as JSON or an asset bundle": "将此场景下载为 JSON 或资源包"
+  "Download this scene as JSON or an asset bundle": "将此场景下载为 JSON 或资源包",
+  "Left panels": "左侧面板",
+  "Right panels": "右侧面板"
 }

src/i18n/locales/zh-Hant.json

@@ -2873,5 +2873,7 @@
   "Play from this scene through the rest of the project": "從此場景開始播放項目中的其餘場景",
   "Play the shot after the selected one, moving on to the next scene when needed": "播放所選鏡頭的下一個鏡頭，必要時進入下一個場景",
   "Edit anchors, data packs and shot details": "編輯錨點、數據包和鏡頭詳情",
-  "Download this scene as JSON or an asset bundle": "將此場景下載為 JSON 或資源包"
+  "Download this scene as JSON or an asset bundle": "將此場景下載為 JSON 或資源包",
+  "Left panels": "左側面板",
+  "Right panels": "右側面板"
 }