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/business-settings/business-settings.types.ts

@@ -92,6 +92,12 @@ export type EPaymentSettings = {
   gateways: PaymentGatewaysSettings;
 };
 
+/** Per-province override for the static flat shipping fee. */
+export type StaticShippingProvinceException = {
+  provinceId: string;
+  amount: number;
+};
+
 /** Per-business store / sales settings. */
 export type StoreSettings = {
   onlineSellEnabled: boolean;
@@ -99,6 +105,14 @@ export type StoreSettings = {
   torobEnabled: boolean;
   orderProcessSteps: OrderProcessStep[];
   ePayment: EPaymentSettings;
+  /**
+   * When true, every order uses `staticShippingAmount` and shipping cost groups are ignored.
+   */
+  staticShippingEnabled: boolean;
+  /** Flat shipping fee in IRT applied to all orders when static shipping is enabled. */
+  staticShippingAmount: number;
+  /** Province-specific overrides of the static flat fee. */
+  staticShippingProvinceExceptions: StaticShippingProvinceException[];
 };
 
 /** Where website special-product carousels read from. */
@@ -356,6 +370,9 @@ export const DEFAULT_BUSINESS_SETTINGS: BusinessSettings = {
     torobEnabled: false,
     orderProcessSteps: DEFAULT_ORDER_PROCESS_STEPS,
     ePayment: { ...DEFAULT_EPAYMENT_SETTINGS },
+    staticShippingEnabled: true,
+    staticShippingAmount: 0,
+    staticShippingProvinceExceptions: [],
   },
   modules: {
     enabled: DEFAULT_ENABLED_BUSINESS_MODULES,