One address per module: new app routes and API hosts

The app now lives at /brain, /catalog, /commerce and /intelligence, with each module's capabilities as sections underneath (for example /catalog/products, /catalog/assets and /catalog/feeds, or /commerce/orders, /commerce/stores, /commerce/loyalty and /commerce/care). Every previous address redirects permanently, so bookmarks and shared links keep working.

For integrators, each module now answers on a single API host — api-brain, api-catalog, api-commerce and api-intelligence.nucleoplatform.com — while endpoint paths are unchanged. The historical hosts (api-hub, api-pim, api-dam, api-desk, api-pos, api-bi) stay available as aliases during the transition; we recommend moving webhooks and integrations to the new hosts. Access is granted per module: anyone with access to one capability of a module now sees the whole module.