feat(scenes): rich scene descriptions and control viewer window

Add TipTap editing in the editor and an Electron window on the control panel to read the current scene description.

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

app/shared/appBranding.ts

@@ -15,13 +15,14 @@ export function appDisplayNameForLocale(localeTag: string): string {
 /** Префикс заголовка окон: `TTRPG - Редактор`. */
 export const APP_WINDOW_BRAND = 'TTRPG';
 
-export type AppWindowKind = 'editor' | 'presentation' | 'control' | 'boot';
+export type AppWindowKind = 'editor' | 'presentation' | 'control' | 'boot' | 'sceneDescription';
 
 const WINDOW_SUFFIX: Record<AppWindowKind, { ru: string; en: string }> = {
   editor: { ru: 'Редактор', en: 'Editor' },
   presentation: { ru: 'Презентация', en: 'Presentation' },
   control: { ru: 'Пульт', en: 'Control' },
   boot: { ru: 'Загрузка', en: 'Loading' },
+  sceneDescription: { ru: 'Описание сцены', en: 'Scene description' },
 };
 
 export function windowChromeTitle(kind: AppWindowKind, localeTag: string): string {