Phase 14 Component Variant Update

Two backward-compatible component changes support the integration flow:

TextInput now forwards its native input ref so a dialog can place initial focus on the first field and restore the approved error-focus pattern.
CTA accepts optional primaryNode and secondaryNode slots while retaining its existing action-object API. This permits a semantic button trigger for the native demo dialog without turning a button action into a fake navigation link.

No visual token, component family, or existing prop behavior was removed.