- New "With tabs" section in Component groups → Page header. Stacks
  PageHeader → Tabs (full-width underline) → TabContent (DescriptionList
  of pod fields, with stub panels for YAML / Environment / Events /
  Terminal).
- Tabs strip bleeds to the host card edges via marginInline pulling out
  by --gp-pad-popover so the underline spans full width. Inner
  paddingInlineStart + paddingInlineEnd uses the same brand dial plus
  --pf-t--global--spacer--sm so the labels indent matches the card
  padding (no hard-coded pixels).
- Tabs renders as `<nav>` (component prop) so the aria-label landmark
  is valid per axe.
- Breadcrumbs in both Full chrome and With tabs given unique aria-labels
  to clear axe landmark-unique violation.
- Vertical rhythm: PageHeader → Tabs sits tight (mirrors breadcrumb →
  title spacing), then --gp-pad-section between Tabs → body.