feat: finish P0 per-sample payment and presign order integration

Wire finance transfer list, protocol view v2 readonly payment, and mark design/plan as P0 implemented.

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

web-admin/src/api/protocol-sample-payment.ts

@@ -48,6 +48,20 @@ export function fetchSubmitPaymentTransferFinance(transferId: string) {
   })
 }
 
+export function fetchPaymentTransferList(params?: {
+  page?: number
+  pageSize?: number
+  payStatus?: string
+  keyword?: string
+  installmentDueDateStart?: string
+  installmentDueDateEnd?: string
+}) {
+  return request.get<PageList<Record<string, unknown>>>({
+    url: '/web/admin/payment-transfers',
+    params
+  })
+}
+
 export function fetchPaymentTransferReceiptConfirmList(params?: {
   page?: number
   pageSize?: number