CngxBreadcrumbConfigFeature

Description#

Discriminated-union shape returned by the breadcrumb config features - withBreadcrumbAriaLabels, withBreadcrumbDataKey, withBreadcrumbIconKey, and withBreadcrumbSkin. The reducer in provideBreadcrumbConfig / provideBreadcrumbConfigAt matches on kind and merges payload into the corresponding config sub-tree (dataKey and iconKey both land under the router sub-tree). Mirrors CngxTagConfigFeature from @cngx/common/display so the consumer's mental model is one across feature areas.