feat: multi-material overlays, presentation guides, and release prebuilds

Align control/presentation with presentation screen rect and darkness z-order; sync window titles and session window cleanup. Pack Win/Mac/Linux with npmRebuild disabled and release-native-prep for classic-level and sharp.

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

app/renderer/shared/sceneOverlay/SceneOverlayHost.tsx

@@ -3,6 +3,7 @@ import React, { useEffect, useMemo, useRef, useState } from 'react';
 import type { MaterialsZoomTool, NpcsZoomTool } from '../../../shared/types';
 import styles from '../materials/MaterialOverlay.module.css';
 
+import { overlayRootStyle, type SceneOverlayViewport } from './overlayViewport';
 import { SceneOverlayViewContext } from './SceneOverlayViewContext';
 
 export type SceneOverlayCloseAction = {
@@ -14,6 +15,10 @@ export type SceneOverlayCloseAction = {
 type SceneOverlayHostProps = {
   /** Есть ли что показывать (материал и/или NPC). */
   active: boolean;
+  /** Область картинки сцены (contain); координаты относительно родителя. */
+  viewport?: SceneOverlayViewport | null;
+  /** Рамка видимой области (предпросмотр пульта). */
+  showViewportGuide?: boolean;
   zoomTool?: MaterialsZoomTool | NpcsZoomTool;
   onZoomAt?: (nx: number, ny: number, target: EventTarget | null) => void;
   closes?: readonly SceneOverlayCloseAction[];
@@ -26,6 +31,8 @@ type SceneOverlayHostProps = {
  */
 export function SceneOverlayHost({
   active,
+  viewport = null,
+  showViewportGuide = false,
   zoomTool = null,
   onZoomAt,
   closes = [],
@@ -58,7 +65,7 @@ export function SceneOverlayHost({
 
   const ctx = useMemo(() => ({ rootRef, view }), [view]);
 
-  if (!active) return null;
+  if (!active && !showViewportGuide) return null;
 
   const captureZoom = Boolean(zoomTool && onZoomAt);
   const zoomCursor =
@@ -81,6 +88,7 @@ export function SceneOverlayHost({
         className={[styles.root, styles.hostHitThrough, captureZoom ? styles.captureZoom : '', zoomCursor]
           .filter(Boolean)
           .join(' ')}
+        style={overlayRootStyle(viewport)}
         role="presentation"
         onClick={(e) => {
           if (!captureZoom || !onZoomAt) return;
@@ -89,6 +97,7 @@ export function SceneOverlayHost({
           onZoomAt(nx, ny, e.target);
         }}
       >
+        {showViewportGuide ? <div className={styles.viewportGuide} aria-hidden /> : null}
         <div className={styles.dim} />
         {children}
         {closes.length > 0 ? (