feat: add energy beam to Batcave terminal

app.js

@@ -1273,6 +1273,24 @@ const energyBeam = new THREE.Mesh(beamGeometry, beamMaterial);
 energyBeam.position.set(10, 50, 10); // Positioned at Batcave terminal area
 scene.add(energyBeam);
 
+// Energy beam from Batcave terminal to sky, representing Timmy's connection
+const beamGeometry2 = new THREE.CylinderGeometry(0.5, 2, 1000, 32);
+const beamMaterial2 = new THREE.MeshBasicMaterial({
+  color: NEXUS.colors.accent,
+  emissive: NEXUS.colors.accent,
+  emissiveIntensity: 0.8,
+  transparent: true,
+  opacity: 0.6
+});
+const energyBeam2 = new THREE.Mesh(beamGeometry2, beamMaterial2);
+energyBeam2.position.set(-40, 500, -40); // Centered above Batcave terminal area
+energyBeam2.rotation.x = Math.PI / 2;
+scene.add(energyBeam2);
+NEXUS.animations = NEXUS.animations || [];
+NEXUS.animations.push(() => {
+  beamMaterial2.opacity = 0.6 + 0.2 * Math.sin(Date.now() * 0.002);
+});
+
 // Animation variable for beam pulse effect
 let beamPulse = 0;
 // Holographic arc gauge floating above the platform; reads from sovereignty-status.json