feat(08-05-interaction-pattern-unification): 统一前端交互与反馈模式

client/src/pages/PurchaseRequestsPage.tsx

@@ -1,9 +1,8 @@
+import { resolveErrorMessage as resolveUserErrorMessage } from "../lib/resolveErrorMessage";
 import { useEffect, useMemo, useRef, useState } from "react";
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { Link, useSearchParams } from "react-router-dom";
 import { toast } from "sonner";
-import { isApiError } from "../api/types";
-import { mapApiErrorMessage } from "../api/errorMessages";
 import {
   archivePurchaseOrder,
   createPurchaseRequest,
@@ -95,13 +94,7 @@ function purchaseDraftSignature(value: {
 }
 
 function resolveError(error: unknown) {
-  if (isApiError(error)) {
-    return mapApiErrorMessage(error.code, error.details, error.message);
-  }
-  if (error instanceof Error) {
-    return error.message;
-  }
-  return "请求失败，请稍后重试。";
+  return resolveUserErrorMessage(error, "请求失败，请稍后重试。");
 }
 
 function sanitizePurchaseAttachmentDownloadName(value?: string) {
@@ -1430,7 +1423,7 @@ export function PurchaseRequestsPage() {
               <div className="rounded-lg border border-zinc-200 bg-zinc-50 p-4 text-sm text-zinc-600">
                 <div>预算池：{detail.budgetPool?.name ?? "未匹配"}</div>
                 <div>关联项目：{detail.project ? `${detail.project.projectNo} · ${detail.project.name}` : "未关联项目"}</div>
-                <div>待办节点：{detail.pendingWorkflow?.task?.stepName ?? "-"}</div>
+                <div>当前审批节点：{detail.pendingWorkflow?.task?.stepName ?? "-"}</div>
                 <div>总金额：<span className="font-semibold text-zinc-900">{totalAmountPreview}</span></div>
                 <div
                   className={`mt-2 rounded-md border px-2 py-1 ${