feat(ui): confirm ending a show and surface help

End-session buttons, Escape, and window close share one confirm. Help is a question-mark icon on the control panel and after the version. About opens directly. Scene editor follows the UI language.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/renderer/sceneEditor/SceneTokenMarker.tsx

@@ -1,6 +1,7 @@
 import React from 'react';
 
 import type { SceneToken } from '../../shared/types';
+import { useEditorI18n } from '../editor/i18n/EditorI18nContext';
 import { useTokenImageUrl } from '../shared/tokens/useTokenImageUrl';
 
 import styles from './SceneEditorApp.module.css';
@@ -30,6 +31,7 @@ export function SceneTokenMarker({
   onResizePointerDown,
   onRotatePointerDown,
 }: Props) {
+  const { t } = useEditorI18n();
   const url = useTokenImageUrl(token.tokenId);
   return (
     <div
@@ -41,7 +43,7 @@ export function SceneTokenMarker({
         height: sizePx,
         transform: `translate(-50%, -50%) rotate(${String(token.rotationDeg)}deg)`,
       }}
-      title="Перетащите · ПКМ — удалить"
+      title={t('sceneEditor.dragDelete')}
       onContextMenu={onContextMenu}
       onPointerDown={(e) => {
         if (e.button !== 0) return;
@@ -56,8 +58,8 @@ export function SceneTokenMarker({
           <button
             type="button"
             className={styles.rotateHandle}
-            aria-label="Повернуть"
-            title="Повернуть"
+            aria-label={t('sceneEditor.rotate')}
+            title={t('sceneEditor.rotate')}
             onPointerDown={onRotatePointerDown}
           >
             ↻