Expose builder chip selection beyond color, raise unselected contrast, and make the five-value limit visible.

Co-authored-by: Cursor <cursoragent@cursor.com>

.cursor/rules/create-flow.mdc

@@ -33,7 +33,7 @@ Reach for these before writing new markup:
 | `[– value +]` numeric stepper (± label) | `app/components/controls/Incrementer` / `IncrementerBlock` |
 | Mid-paragraph "expand / see all" link button | `app/components/buttons/InlineTextButton` |
 | Help-icon + label above a control | `app/components/type/InputLabel` (`helpIcon` prop) |
-| Toggle chip (dim-but-clickable) | `Chip` with `state="Disabled" disabled={false}` |
+| Toggle chip | `Chip` with `state="selected"` / `"unselected"` (Chip sets `aria-pressed`; selected includes a check mark) |
 | Card-click → structured creation modal | `Create` with `backdropVariant="blurredYellow"` |
 
 If a screen grows a 2nd inline copy of any pattern above, **extract a shared