Add e-payment UI, checkout payment result, and legacy migrate domain lookup.

Wire Mellat settings in business dashboard, customer bank return page with payment details, and super-admin migrate modal domain confirmation.

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

apps/customer/src/services/cartService.ts

@@ -46,7 +46,8 @@ export interface ShippingAddressInput {
 
 export type CheckoutPaymentType = 'e_payment_gate' | 'transfer'
 
-export type OnlineGatewayType = 'mellat_behpardakht' | 'saman_kish'
+/** Matches backend PaymentGatewayId (mellat first; others later). */
+export type OnlineGatewayType = 'mellat' | 'sep' | 'snappay' | 'digipay' | 'zarinpal'
 
 export interface CheckoutPaymentInput {
   type: CheckoutPaymentType
@@ -55,13 +56,33 @@ export interface CheckoutPaymentInput {
   transferRefNumber?: string
 }
 
+export interface PaymentRedirect {
+  method: 'GET' | 'POST'
+  url: string
+  fields?: Record<string, string>
+}
+
+export interface CheckoutPaymentResult {
+  gatewayType: string
+  transactionId: string
+  redirect: PaymentRedirect
+}
+
 export interface CheckoutInput {
   addressId?: string
   shippingAddress?: ShippingAddressInput
   customerNotes?: string
+  /** Absolute URL for bank callback return (required for e_payment_gate). */
+  returnUrl?: string
   payment: CheckoutPaymentInput
 }
 
+export interface CheckoutResponse {
+  message: string
+  order: Order
+  payment?: CheckoutPaymentResult
+}
+
 function cartPath(suffix = '') {
   const businessId = getActiveBusinessId()
   if (!businessId) {
@@ -98,9 +119,34 @@ export async function removeCartItem(itemId: string) {
 }
 
 export async function checkoutCart(input: CheckoutInput) {
-  return apiRequest<{ message: string; order: Order }>(cartPath('/checkout'), {
+  return apiRequest<CheckoutResponse>(cartPath('/checkout'), {
     method: 'POST',
     auth: true,
     body: input,
   })
 }
+
+/** Submit a gateway redirect (POST form or GET navigation). */
+export function submitPaymentRedirect(redirect: PaymentRedirect) {
+  if (redirect.method === 'GET') {
+    window.location.assign(redirect.url)
+    return
+  }
+
+  const form = document.createElement('form')
+  form.method = 'POST'
+  form.action = redirect.url
+  form.style.display = 'none'
+  form.acceptCharset = 'UTF-8'
+
+  for (const [name, value] of Object.entries(redirect.fields ?? {})) {
+    const input = document.createElement('input')
+    input.type = 'hidden'
+    input.name = name
+    input.value = value
+    form.appendChild(input)
+  }
+
+  document.body.appendChild(form)
+  form.submit()
+}

apps/customer/src/services/orderService.ts

@@ -38,6 +38,22 @@ export interface OrderCustomer {
   email: string | null
 }
 
+export interface OrderTransaction {
+  id: string
+  type: string
+  status: string
+  amount: number
+  posType: string | null
+  gatewayType: string | null
+  gatewayRef: string | null
+  gatewayTrackId: string | null
+  transferAccount: string | null
+  transferRefNumber: string | null
+  notes: string | null
+  createdAt: string
+  updatedAt: string
+}
+
 export interface Order {
   id: string
   businessId: string
@@ -61,6 +77,7 @@ export interface Order {
   updatedAt: string
   customer: OrderCustomer
   items: OrderItem[]
+  transactions?: OrderTransaction[]
 }
 
 export interface OrdersListResponse {