feat(tokens): app-local non-player tokens with session moves and UI polish

Add token library/placements, keep play-time moves for the session, lock presentation interactions, and fix export/import modal layout plus freeform trap label.

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

app/renderer/shared/PresentationView.tsx

@@ -17,6 +17,9 @@ import { NpcsSceneOverlay } from './npcs/NpcsSceneOverlay';
 import { useNpcsOverlayState } from './npcs/useNpcsOverlayState';
 import { SceneOverlayHost } from './sceneOverlay/SceneOverlayHost';
 import { useSceneViewState } from './sceneView/useSceneViewState';
+import { SceneTokensOverlay } from './tokens/SceneTokensOverlay';
+import { useAppTokens } from './tokens/useAppTokens';
+import { useSceneTokensSession } from './tokens/useSceneTokensSession';
 import { SceneTrapsOverlay } from './traps/SceneTrapsOverlay';
 import { useSceneTrapsState } from './traps/useSceneTrapsState';
 import styles from './PresentationView.module.css';
@@ -44,6 +47,8 @@ export function PresentationView({
   const [sceneView] = useSceneViewState();
   const [materialsOverlay] = useMaterialsOverlayState();
   const [npcsOverlay] = useNpcsOverlayState();
+  const appTokens = useAppTokens();
+  const [sceneTokensSession] = useSceneTokensSession();
   const [vp] = useVideoPlaybackState();
   const videoElRef = useRef<HTMLVideoElement | null>(null);
   const [contentRect, setContentRect] = React.useState<{ x: number; y: number; w: number; h: number } | null>(
@@ -164,6 +169,14 @@ export function PresentationView({
         <SceneGridOverlay grid={scene.grid} viewport={contentRect} />
       ) : null}
       <div className={styles.vignette} />
+      {scene?.previewAssetType === 'image' && contentRect ? (
+        <SceneTokensOverlay
+          placements={scene.tokens ?? []}
+          library={appTokens}
+          session={sceneTokensSession}
+          viewport={contentRect}
+        />
+      ) : null}
       {scene?.previewAssetType === 'image' && contentRect ? (
         <SceneTrapsOverlay
           traps={scene.traps ?? []}