shadcn/ui and Local UI Adapters

Use the components already provided by the app. Read the app's design-system configuration, Toolkit provider, and local UI components before adding or changing a control. Their exports, variants, and props are the contract; do not guess from upstream examples.

Keep imports behind the local adapter

Product pages and domain components should import standard controls through the app's configured local UI alias. In the Chat starter, that is @/components/ui/*; its app/components/ui/button.tsx is a one-line re-export of @agent-native/toolkit/ui/button. Follow an adjacent local shim when the app needs another Toolkit primitive that is already exported there.