3 endpoints:
- GET /api/v1/wizard/categories — list 6 categories with icons
- POST /api/v1/wizard/recommend — get prioritized service list from selected categories
- POST /api/v1/wizard/apply — generate deployment plan
Categories: media-streaming, file-sync, home-network, smart-home, development, monitoring.
Hardware profiles: minimal (3 svcs), medium (6), powerful (12).
Cross-category dedup with priority sorting. 1633 tests pass.
