feat(reimbursement-small-team-form-validation): 完善付款批次核对与回单预览

client/src/api/paymentBatches.ts

@@ -25,6 +25,15 @@ export type PaymentBatchItem = {
   failureMessage: string | null;
   createdAt: string | null;
   openRiskFlags: RiskFlag[];
+  expenseItems?: Array<{
+    id: string;
+    expenseTypeName: string;
+    expenseDate: string | null;
+    description: string;
+    amount: string;
+  }>;
+  expenseItemsTotal?: string;
+  expenseItemsAmountMatches?: boolean;
 };
 
 export type PaymentBatch = {
@@ -235,6 +244,14 @@ export async function downloadPaymentBatchReceiptAttachment(
   return apiRequestBlob(buildAttachmentFileUrl(paymentBatchReceiptAttachmentFileUrl(batchId, attachmentId), reason));
 }
 
+export async function previewPaymentBatchReceiptAttachment(
+  batchId: string,
+  attachmentId: string,
+): Promise<ApiBlobResponse> {
+  const params = new URLSearchParams({ mode: "preview" });
+  return apiRequestBlob(`${paymentBatchReceiptAttachmentFileUrl(batchId, attachmentId)}?${params.toString()}`);
+}
+
 export async function voidPaymentBatchReceiptAttachment(batchId: string, attachmentId: string, reason: string) {
   return apiRequestData<{ attachmentId: string; outcome: "voided"; voidedAt: string }>(
     `/api/payment-batches/${batchId}/receipt-attachments/${attachmentId}/void`,