Adds a Batcave workshop terminal area (positioned back-left of the main
glass platform at (-10, 0, -8)) with high-metalness PBR surfaces and a
CubeCamera reflection probe that refreshes every 2 s.
- WebGLCubeRenderTarget (128 px, HalfFloat) + CubeCamera positioned
above the console captures local environment reflections
- Three metallic MeshStandardMaterial surfaces (floor panels, wall
panels, console desk) all receive envMap from the probe
- Batcave geometry: floor slab, back wall, left wall, console desk,
screen bezel, emissive ceiling strip, workshop point light
- Probe hides the batcaveGroup during CubeCamera.update() to avoid
self-capture artefacts, then re-applies envMap to all metallic mats
Fixes#246
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
