Registry bases (base and radix)

This folder holds two parallel registries:

• base/ — Base UI–backed components and blocks
• radix/ — Radix-backed components and blocks

Keep them in sync

For any shared surface (same preview block, same card, same example intent), changes should be applied to both base and radix variants.

• Adjust only what must differ: imports (.../base/ui/... vs .../radix/ui/...) and primitive APIs.
• Avoid editing only one tree unless the work is intentionally scoped to a single base.

Project automation: see .cursor/rules/registry-bases-parity.mdc for the Cursor rule agents use when working under apps/v4/registry/bases/.