Stops the chip-count drift introduced in \`c98510af\`. AlertDialog.Action
was exposing all 6 ButtonVariant chips, breaking the 3-chip rhythm the
rest of UIX follows. Per DEMO_AUTHORING_GUIDE §12.7 every chip-group
must enumerate the full union the type declares — so the fix is to
narrow the *type*, not truncate the chips.
\`AlertDialogActionVariant = Extract<ButtonVariant, SelectionVariant>\`
imports the canonical set from \`eidos/lib/types.ts\` (`solid | outline |
ghost`), which is the right shape for a primary action button:
- keeps 'solid' as the CTA default
- 3-chip parity with Cancel (ControlVariant), DropdownMenu.Trigger
(ControlVariant), and the rest of the form-control surface
- no invented vocab — uses the existing canon set named for exactly
this use case ("selection chips / toggles" semantically maps to
"selection / action buttons")
Demo array drops from 6 to 3 chips; API row updated to reflect the
narrowing.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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