Closes out F63 - every domain named in the delivery plan's Q7 gap now has
facade-level coverage.
admin-users.facade.spec.ts (14 tests): sessions/audit dialog targeting (a
revokeSession must reload the CURRENTLY open user's sessions, not whichever
user happened to be open first), invite() trims and rejects whitespace-only
email, roleName() falls back to the raw id rather than rendering blank for
an unmapped role.
cart.service.spec.ts (23 tests) - this had zero coverage despite feeding
totalWithDelivery and allRequiredDeliveriesSelected directly into
cart.component.ts's checkout gate and the offers/qty payload sent to
POST /api/v2/storefront/checkout, the exact contract this session's F14-F16
rewired. A regression here would silently let checkout proceed with a
missing delivery selection, or compute the wrong total. Covers the delivery-
requirement matrix explicitly (digital items never require selection,
deliverySelectionRequired: false overrides having options present, a
selection satisfies the requirement once made) and the quantity-to-zero ->
line-removal behavior in updateQuantity.
Verified: 237/237 unit tests (37 new since the last commit), arch:check
clean, 5/5 E2E, production build succeeds.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>