Add shipping cost management and checkout shipping fees.

Business store shipping groups/static rates UI, and customer checkout that quotes and applies shipping on delivery and payment.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/business/src/App.tsx

@@ -37,6 +37,7 @@ import { OrdersPage } from './pages/OrdersPage'
 import { LoginPage } from './pages/LoginPage'
 import { ShoppingCardsPage } from './pages/ShoppingCardsPage'
 import { StoreSettingsPage } from './pages/StoreSettingsPage'
+import { StoreShippingPage } from './pages/StoreShippingPage'
 import { StoreInstallmentsPage } from './pages/StoreInstallmentsPage'
 import { AddStoreInstallmentPage } from './pages/AddStoreInstallmentPage'
 import { BlogPage } from './pages/BlogPage'
@@ -111,6 +112,7 @@ function App() {
               <Route path="store" element={<StorePage />} />
               <Route path="store/items" element={<StoreItemsPage />} />
               <Route path="store/orders" element={<OrdersPage />} />
+              <Route path="store/shipping" element={<StoreShippingPage />} />
               <Route path="store/cards" element={<ShoppingCardsPage />} />
               <Route path="store/installments" element={<StoreInstallmentsPage />} />
               <Route path="store/installments/new" element={<AddStoreInstallmentPage />} />