Flip influence-link picture lamps upside down in the 3D hall.

Document the inverted InfluencePictureLamp mount so link indicators match the intended fixture orientation.

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

client/src/components/VirtualGallery.tsx

@@ -613,7 +613,7 @@ function InfluencePictureLamp({
   const scale = 1.35;
 
   return (
-    <group position={[0, mountY, frameDepth * 0.55]} scale={scale}>
+    <group position={[0, mountY, frameDepth * 0.55]} rotation={[Math.PI, 0, 0]} scale={scale}>
       <mesh position={[0, 0.04, -0.05]} castShadow renderOrder={30}>
         <boxGeometry args={[0.11, 0.05, 0.05]} />
         <meshStandardMaterial color="#2f2f2f" metalness={0.9} roughness={0.2} />