feat: окно инструкций, свёрнутая история и обновление спонсоров

Инструкции вынесены в отдельное окно Electron; токены игроков не пропадают при смене сцены; предпросмотр и плейлисты адаптированы; история свёрнута по умолчанию.

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

app/shared/ipc/contracts.ts

@@ -176,6 +176,9 @@ export const ipcChannels = {
     closeSceneDescription: 'windows.closeSceneDescription',
     getSceneDescriptionContent: 'windows.getSceneDescriptionContent',
     sceneDescriptionContent: 'windows.sceneDescriptionContent',
+    openInstructions: 'windows.openInstructions',
+    getInstructionsSection: 'windows.getInstructionsSection',
+    instructionsSection: 'windows.instructionsSection',
     openMaterials: 'windows.openMaterials',
     closeMaterials: 'windows.closeMaterials',
     openPlaylists: 'windows.openPlaylists',
@@ -429,6 +432,7 @@ export type IpcEventMap = {
   [ipcChannels.windows.multiWindowStateChanged]: { open: boolean };
   [ipcChannels.windows.presentationContentSizeChanged]: { width: number; height: number };
   [ipcChannels.windows.sceneDescriptionContent]: { html: string };
+  [ipcChannels.windows.instructionsSection]: { section: string };
   [ipcChannels.project.importZipProgress]: ZipProgressEvent;
   [ipcChannels.project.exportZipProgress]: ZipProgressEvent;
   [ipcChannels.project.scenePreviewImportProgress]: ScenePreviewImportEvent;
@@ -815,6 +819,14 @@ export type IpcInvokeMap = {
     req: { html: string };
     res: { ok: true };
   };
+  [ipcChannels.windows.openInstructions]: {
+    req: { section?: string };
+    res: { ok: true };
+  };
+  [ipcChannels.windows.getInstructionsSection]: {
+    req: Record<string, never>;
+    res: { section: string };
+  };
   [ipcChannels.windows.closeSceneDescription]: {
     req: Record<string, never>;
     res: { ok: true };