refactor(client): share the outside-pointer dismissal hook

The jobs list and the Cordis panel carried identical outside-pointerdown
close effects, which the duplication gate rejects; both now use
useDismissOnOutsidePointer from ui-primitives.

Refs #2526

packages/client/ui-primitives/src/index.ts

@@ -13,6 +13,7 @@ export { Input } from './Input.tsx'
 export { Menu } from './Menu.tsx'
 export type { MenuEntry, MenuItem, MenuSeparator, MenuLabel } from './Menu.tsx'
 export { useAnchoredMaxHeight } from './useAnchoredMaxHeight.ts'
+export { useDismissOnOutsidePointer } from './useDismissOnOutsidePointer.ts'
 export { HoverCard } from './HoverCard.tsx'
 export { Modal } from './Modal.tsx'
 export { OnboardingSurface } from './OnboardingSurface.tsx'