Ports crewli-starter WorkspaceSwitcher into the Crewli SPA as production
TypeScript: PrimeVue Popover replaces the manual click-outside listener,
data is derived from useAuthStore/useOrganisationStore (no new store), gradient
pairs are deterministic via a new pure util with full Vitest coverage.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
