Move e-payment to Settings and add ZarinPal credentials.

Gateway config now lives on the general Settings page, with Mellat fields in a 3-column layout and ZarinPal available at checkout.

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

apps/customer/src/services/cartService.ts

@@ -83,6 +83,18 @@ export interface CheckoutResponse {
   payment?: CheckoutPaymentResult
 }
 
+export interface PublicPaymentGateway {
+  id: OnlineGatewayType
+  label: string
+  labelFa: string
+}
+
+export interface PublicPaymentMethods {
+  enabled: boolean
+  defaultGateway: OnlineGatewayType | null
+  gateways: PublicPaymentGateway[]
+}
+
 function cartPath(suffix = '') {
   const businessId = getActiveBusinessId()
   if (!businessId) {
@@ -91,6 +103,14 @@ function cartPath(suffix = '') {
   return `/businesses/${businessId}/cart${suffix}`
 }
 
+function paymentsMethodsPath() {
+  const businessId = getActiveBusinessId()
+  if (!businessId) {
+    throw new Error('No active business selected. Please sign in again.')
+  }
+  return `/businesses/${businessId}/payments/methods`
+}
+
 export async function getCart(signal?: AbortSignal) {
   return apiRequest<{ cart: Cart }>(cartPath(), { auth: true, signal })
 }
@@ -126,6 +146,13 @@ export async function checkoutCart(input: CheckoutInput) {
   })
 }
 
+export async function getPaymentMethods(signal?: AbortSignal) {
+  return apiRequest<PublicPaymentMethods>(paymentsMethodsPath(), {
+    auth: false,
+    signal,
+  })
+}
+
 /** Submit a gateway redirect (POST form or GET navigation). */
 export function submitPaymentRedirect(redirect: PaymentRedirect) {
   if (redirect.method === 'GET') {