feat: tactical icons, follow-camera orbit, and ship info panel

apps/viewer/src/ViewerAppController.ts

@@ -111,6 +111,8 @@ export class ViewerAppController {
   private readonly followCameraDirection = new THREE.Vector3(0, 0.16, 1);
   private readonly followCameraDesiredDirection = new THREE.Vector3(0, 0.16, 1);
   private readonly followCameraOffset = new THREE.Vector3();
+  private followOrbitYaw = 0;
+  private followOrbitPitch = 0.2;
   private readonly historyWindows: HistoryWindowState[] = [];
   private historyWindowCounter = 0;
   private historyWindowZCounter = 10;