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/editor/graph/SceneGraph.tsx

@@ -27,6 +27,8 @@ import {
 } from '../../../shared/graph/sceneGraphLineage';
 import type { AssetId, GraphNodeId, SceneGraphEdge, SceneGraphNode, SceneId } from '../../../shared/types';
 import { RotatedImage } from '../../shared/RotatedImage';
+import { EllipsisText } from '../../shared/ui/EllipsisText';
+import ellipsisStyles from '../../shared/ui/ellipsisText.module.css';
 import { useAssetUrl } from '../../shared/useAssetImageUrl';
 
 import styles from './SceneGraph.module.css';
@@ -293,7 +295,7 @@ function SceneCardNode({ data }: NodeProps<SceneCardData>) {
           ) : null}
         </div>
         <div className={styles.nodeBody}>
-          <div className={styles.title}>{data.title || ui.untitled}</div>
+          <EllipsisText text={data.title || ui.untitled} className={[styles.title, ellipsisStyles.root].join(' ')} />
           {data.hasAnyAudioLoop || data.hasAnyAudioAutoplay ? (
             <div className={styles.musicParams}>
               {data.hasAnyAudioLoop ? (