feat(hud): Cyber HUD theme with GPU contact sonar (#706)

Add the opt-in Cyber HUD layout with coordinated map and cockpit panel
styling, GPU-only contact sonar (rings, range, power, opacity, sector) with
native-rendering fallback, and set_cyber_sonar voice controls. Sonar visual
style inspired by kk376's tactical naval sonar (#214).

Co-authored-by: Sameh Khamis <[email protected]>
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

src/app/data.js

@@ -1,5 +1,6 @@
 import { LayerLifecycle } from '../data/lifecycle.js';
 import { LayerPresentation } from './layerPresentation.js';
+import { createCyberSonarScene } from '../cyberSonarScene.js';
 /** Register the application layer catalog before allowing state restoration. */
 export function createApplicationData({
   scene: { viewer, mapStackController },
@@ -55,6 +56,7 @@ export function createApplicationData({
   }
   presentation.mount(document.getElementById('data-toggles'));
   styleManager.attachDataManager(dataManager);
+  defer(createCyberSonarScene(viewer, dataManager));
 
   return { dataManager, catalog, presentation };
 }