aframevr/aframe ? reverse-engineered prompt

Build me a browser based 3D, AR, and VR framework that lets people make scenes with simple HTML tags.

I want it to feel easy enough that someone can drop in an <a-scene>, add boxes, spheres, lights, models, animations, and tracked controllers, then open it in a WebXR capable browser and see it working on desktop, mobile, and headsets. Please make it use a clean entity component style so components are reusable and easy to attach to objects. Include the usual basics like materials, geometry, camera, sky, shadows, raycasting, and positional audio, plus a simple visual inspector so scenes can be edited while running.

Please also add a few example scenes and make sure the project is easy to run locally, easy to build for production, and good enough that people can use it as a real starter for VR and AR experiments. If you need current docs or WebXR details, look them up online while you work.