Add shipping cost groups and reject spam contact-form SMS.

Wire cart/checkout shipping fees with category groups and static rates, reject gibberish contact submissions, and SMS only valid Iranian mobiles.

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

src/cart/cart.module.ts

@@ -3,11 +3,18 @@ import { AuthModule } from '../auth/auth.module';
 import { BusinessSettingsModule } from '../business-settings/business-settings.module';
 import { OrdersModule } from '../orders/orders.module';
 import { PaymentsModule } from '../payments/payments.module';
+import { StoreModule } from '../store/store.module';
 import { CartController } from './cart.controller';
 import { CartService } from './cart.service';
 
 @Module({
-  imports: [AuthModule, OrdersModule, PaymentsModule, BusinessSettingsModule],
+  imports: [
+    AuthModule,
+    OrdersModule,
+    PaymentsModule,
+    BusinessSettingsModule,
+    StoreModule,
+  ],
   controllers: [CartController],
   providers: [CartService],
 })