📁 Folder Structure:
- /materials/entities/ + /materials/fields/
- /docs/ with guides/technical/meta/demos
- /examples/ by complexity (01-basics, 02-advanced, 03-showcase)

📚 Documentation:
- 7 comprehensive docs
- Documentation hub (docs/README.md)
- Role-based navigation

🧹 Cleanup:
- Remove deploy.yml (duplicate)
- Remove MATERIAL_GUIDE.md (v3 legacy)
- Update all references for coherence

✨ Production-ready with world-class documentation