resolveByKey/resolveByRoute subscribed with only a next callback -
a resolver failure left loading=true forever with no error branch to
recover from. Added an error signal, error subscribe handler, and a
distinct error state UI (separate from the existing 404 not-found
state) with a way back home.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
- Replace hand-rolled loading/error/empty markup with shared app-skeleton,
app-empty-state, and app-button across catalog, product details, cart,
compare, wishlist, and the public static-page renderer
- Fix hardcoded hex colors that bypassed theme CSS variables (catalog,
product details), restoring multi-tenant theme correctness
- Remove ~1100 lines of dead "alt" cart theme CSS (never applied by the
template) from cart.component.scss, bringing it back under the 40kB
build budget (89.49kB -> 59.39kB cart-component chunk)
- Swap legacy global .btn/.btn-ghost/.btn-primary classes for app-button
in compare and wishlist empty/toolbar actions
