feat(stockChat): create 3D warehouse visualization component

- Implement Three.js based 3D warehouse view with InstancedMesh rendering
- Add warehouse tab switching and data filtering (stock status, materiel, batch)
- Implement Raycaster for location click detection and detail dialog
- Add camera focus animation with lerp smoothing
- Include status legend and toolbar with filter controls

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>