fix: 隔离门户待办身份并取消旧请求（09-11-reimbursement-payment-handoffs）

client/src/api/portal.ts

@@ -118,8 +118,8 @@ export type PortalHomePayload = {
   teamStatusBoard: PortalTeamStatusItem[];
 };
 
-export async function fetchPortalHome() {
-  return apiRequestData<PortalHomePayload>("/api/portal/home");
+export async function fetchPortalHome(signal?: AbortSignal) {
+  return apiRequestData<PortalHomePayload>("/api/portal/home", { signal });
 }
 
 export async function fetchPortalTeamStatus() {