feat(npcs): inspect cards, Show overlay, and optional external link

Clicking an NPC tile opens description cards (multi-select accordion); Show puts avatars on screen. Optional URL opens a webview tab. Avatar pan in the editor commits on pointer up.

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

app/renderer/editor/graph/SceneGraph.tsx

@@ -26,7 +26,6 @@ import {
   isSideStoryEdge,
 } from '../../../shared/graph/sceneGraphLineage';
 import type { AssetId, GraphNodeId, SceneGraphEdge, SceneGraphNode, SceneId } from '../../../shared/types';
-import { ContainedVideo } from '../../shared/ContainedVideo';
 import { RotatedImage } from '../../shared/RotatedImage';
 import { EllipsisText } from '../../shared/ui/EllipsisText';
 import ellipsisStyles from '../../shared/ui/ellipsisText.module.css';
@@ -260,46 +259,6 @@ function SceneCardNode({ data }: NodeProps<SceneCardData>) {
                 />
               )}
             </div>
-          ) : previewUrl && data.previewAssetType === 'video' ? (
-            <div className={styles.previewFill}>
-              {data.previewRotationDeg === 0 ? (
-                <video
-                  src={previewUrl}
-                  muted
-                  playsInline
-                  preload="metadata"
-                  className={styles.videoCover}
-                  onLoadedData={(e) => {
-                    const v = e.currentTarget;
-                    try {
-                      v.currentTime = 0;
-                      v.pause();
-                    } catch {
-                      // ignore
-                    }
-                  }}
-                />
-              ) : (
-                <ContainedVideo
-                  url={previewUrl}
-                  rotationDeg={data.previewRotationDeg}
-                  mode="cover"
-                  muted
-                  playsInline
-                  preload="metadata"
-                  style={{ width: '100%', height: '100%' }}
-                  onLoadedData={(e) => {
-                    const v = e.currentTarget;
-                    try {
-                      v.currentTime = 0;
-                      v.pause();
-                    } catch {
-                      // ignore
-                    }
-                  }}
-                />
-              )}
-            </div>
           ) : (
             <div className={styles.previewPlaceholder} aria-hidden />
           )}