Shadcn Registry Validation

[mihar-22]

Context

The public Shadcn registry needs clean-project validation before its usage is documented.

Scope

• Validate registry metadata, paths, dependencies, and references.
• Install supported React and Tailwind components into clean projects.
• Install complete Skin blocks and verify their dependency closure.
• Exercise repeated installs and overlapping item installs.
• Cover list, search, view, and add workflows supported by standard tooling.
• Run the validation in CI against the checked-in registry.

Acceptance criteria

• Every public item installs and builds in its supported project shape.
• Complete Skin blocks run with no missing source or dependency.
• Repeat and overlap cases are safe and deterministic.
• Invalid metadata and broken references fail CI.
• Results are sufficient to support the direct registry documentation.