Potential fix for code scanning alert no. 3445: Unused variable, import, function or class

Co-authored-by: Copilot Autofix powered by AI <62310815+github-advanced-security[bot]@users.noreply.github.com>

editor/js/Agent.js

@@ -1,4 +1,3 @@
-import { GoogleGenAI } from '@google/genai';
 import * as Commands from './commands/Commands.js';
 import { Vector3, BoxGeometry, SphereGeometry, MeshStandardMaterial, Mesh, DirectionalLight, PointLight, AmbientLight, Color, CylinderGeometry } from 'three';