feat(panels): build the rail panels on one UiPanel

The Data, Authoring, Weather, Recent Imagery, Context, CCTV, Street Level
and Radio panels each wrote the same frame by hand. They are now one kit
component, UiPanel, with a title, badge/actions/default slots and
v-model:collapsed, drawing Core's panel markup and classes beside the kit's;
props cover the differences (sideways, glow, scroll, railScroller, tag,
toggleWords). RailPanel binds it to the panel chrome store: v-panel-state
writes its state classes at once, and its button's clicks reach PanelChrome.
UiPanelToggle is the collapse button UiPanel and PanelCollapseButton share.

UiPanel's collapsed drives the button and ui-panel--collapsed
only; the owner hides the body by writing the root's collapsed class, since
the rails measure a panel in the task that opens it. PanelCollapseButton
takes startCollapsed instead of initial and initialTitle, so a button shows
its state's glyph and words before startup presents the panel. Titles render
through t() instead of data-i18n, and the unused "Expand panel" string is
pruned. v-panel-state redraws the presented state after a re-render, in
case a root's class binding ever changes.

src/i18n/locales/de.json

@@ -746,7 +746,6 @@
   "Search any location...": "Ort suchen...",
   "WEATHER": "WETTER",
   "CONTEXT": "KONTEXT",
-  "Expand panel": "Bereich ausklappen",
   "Context mode": "Kontextmodus",
   "CONTACTS": "KONTAKTE",
   "Cycles the nearest contacts of whatever type you select — planes, vessels, installations. Satellites track independently.": "Wechselt zwischen den nächstgelegenen Kontakten des gewählten Typs: Flugzeuge, Schiffe, Anlagen. Satelliten werden unabhängig verfolgt.",

src/i18n/locales/es.json

@@ -176,7 +176,6 @@
   "AVAILABLE INPUTS ONLY · NOT AN ALL-CLEAR": "SOLO DATOS DISPONIBLES · NO IMPLICA TODO DESPEJADO",
   "Enable cockpit weather effects": "Activar los efectos climáticos de la cabina",
   "CONTEXT": "CONTEXTO",
-  "Expand panel": "Expandir panel",
   "Context mode": "Modo de contexto",
   "CONTACTS": "CONTACTOS",
   "Cycles the nearest contacts of whatever type you select — planes, vessels, installations. Satellites track independently.": "Recorre los contactos más cercanos del tipo que elijas — aeronaves, buques, instalaciones. Los satélites se rastrean por separado.",

src/i18n/locales/fr.json

@@ -2791,7 +2791,6 @@
   "RECENT IMAGERY": "IMAGERIE RÉCENTE",
   "Imagery days in the box": "Jours d'imagerie dans la zone",
   "CONTEXT": "CONTEXTE",
-  "Expand panel": "Développer le panneau",
   "Context mode": "Mode de contexte",
   "CONTACTS": "CONTACTS",
   "Cycles the nearest contacts of whatever type you select — planes, vessels, installations. Satellites track independently.": "Parcourt les contacts les plus proches du type sélectionné — avions, navires, installations. Les satellites sont suivis séparément.",

src/i18n/locales/it.json

@@ -2791,7 +2791,6 @@
   "RECENT IMAGERY": "IMMAGINI RECENTI",
   "Imagery days in the box": "Giorni con immagini nel riquadro",
   "CONTEXT": "CONTESTO",
-  "Expand panel": "Espandi il pannello",
   "Context mode": "Modalità contesto",
   "CONTACTS": "CONTATTI",
   "Cycles the nearest contacts of whatever type you select — planes, vessels, installations. Satellites track independently.": "Scorre i contatti più vicini del tipo selezionato: aerei, navi, installazioni. I satelliti vengono tracciati in modo indipendente.",

src/i18n/locales/ja.json

@@ -2649,7 +2649,6 @@
   "RECENT IMAGERY": "最近の衛星画像",
   "Imagery days in the box": "範囲内の画像のある日",
   "CONTEXT": "コンテキスト",
-  "Expand panel": "パネルを展開",
   "Context mode": "コンテキストモード",
   "CONTACTS": "コンタクト",
   "Cycles the nearest contacts of whatever type you select — planes, vessels, installations. Satellites track independently.": "選択した種類（航空機、船舶、施設）の最寄りのコンタクトを順に切り替えます。衛星は独立して追跡されます。",

src/i18n/locales/pt.json

@@ -2793,7 +2793,6 @@
   "RECENT IMAGERY": "IMAGENS RECENTES",
   "Imagery days in the box": "Dias com imagens na área",
   "CONTEXT": "CONTEXTO",
-  "Expand panel": "Expandir painel",
   "Context mode": "Modo de contexto",
   "CONTACTS": "CONTATOS",
   "Cycles the nearest contacts of whatever type you select — planes, vessels, installations. Satellites track independently.": "Percorre os contatos mais próximos do tipo que você selecionar — aviões, embarcações, instalações. Os satélites são rastreados de forma independente.",

src/i18n/locales/ru.json

@@ -707,7 +707,6 @@
   "FLIR": "FLIR",
   "Style": "Стиль",
   "STATION SITE": "САЙТ СТАНЦИИ",
-  "Expand panel": "Развернуть панель",
   "CONTACTS": "КОНТАКТЫ",
   "Cycles the nearest contacts of whatever type you select — planes, vessels, installations. Satellites track independently.": "Перебирает ближайшие контакты выбранного типа — самолёты, суда, объекты. Спутники отслеживаются отдельно.",
   "SEARCH NEARBY SITES": "ПОИСК ОБЪЕКТОВ РЯДОМ",

src/i18n/locales/uk.json

@@ -2861,7 +2861,6 @@
   "RECENT IMAGERY": "СВІЖІ ЗНІМКИ",
   "Imagery days in the box": "Дні зі знімками в області",
   "CONTEXT": "КОНТЕКСТ",
-  "Expand panel": "Розгорнути панель",
   "Context mode": "Режим контексту",
   "CONTACTS": "КОНТАКТИ",
   "Cycles the nearest contacts of whatever type you select — planes, vessels, installations. Satellites track independently.": "Гортає найближчі контакти вибраного вами типу — літаки, судна, обʼєкти. Супутники відстежуються окремо.",

src/i18n/locales/zh-CN.json

@@ -2545,7 +2545,6 @@
   "RECENT IMAGERY": "近期影像",
   "Imagery days in the box": "视野内的影像天数",
   "CONTEXT": "态势",
-  "Expand panel": "展开面板",
   "Context mode": "态势模式",
   "CONTACTS": "目标",
   "Cycles the nearest contacts of whatever type you select — planes, vessels, installations. Satellites track independently.": "循环切换你所选类型中最近的目标，包括飞机、船舶、设施。卫星独立跟踪。",

src/i18n/locales/zh-Hant.json

@@ -2533,7 +2533,6 @@
   "RECENT IMAGERY": "近期影像",
   "Imagery days in the box": "視野內的影像天數",
   "CONTEXT": "態勢",
-  "Expand panel": "展開面板",
   "Context mode": "態勢模式",
   "CONTACTS": "目標",
   "Cycles the nearest contacts of whatever type you select — planes, vessels, installations. Satellites track independently.": "循環切換你所選類型中最近的目標，包括飛機、船舶、設施。衛星獨立跟蹤。",