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

client/src/pages/DashboardPage.tsx

@@ -1,6 +1,6 @@
+import { resolveErrorMessage as resolveUserErrorMessage } from "../lib/resolveErrorMessage";
 import { useMemo, useState } from "react";
 import { useMutation, useQuery } from "@tanstack/react-query";
-import { mapApiErrorMessage } from "../api/errorMessages";
 import { exportDashboardReimbursements } from "../api/exports";
 import {
   fetchDashboardApprovalEfficiency,
@@ -10,7 +10,6 @@ import {
   type DashboardQuery,
 } from "../api/dashboard";
 import { fetchDepartments } from "../api/departments";
-import { isApiError } from "../api/types";
 import { toast } from "sonner";
 import { useAuth } from "../auth/AuthContext";
 import { hasPermission } from "../auth/permissions";
@@ -36,15 +35,7 @@ function toCurrency(value: string | number | null | undefined) {
 }
 
 function resolveErrorMessage(error: unknown) {
-  if (isApiError(error)) {
-    return `${error.code}: ${mapApiErrorMessage(error.code, error.details, error.message)}`;
-  }
-
-  if (error instanceof Error) {
-    return error.message;
-  }
-
-  return "加载失败，请稍后重试。";
+  return resolveUserErrorMessage(error, "加载失败，请稍后重试。");
 }
 
 export function DashboardPage() {
@@ -107,7 +98,7 @@ export function DashboardPage() {
       toast.success("导出完成");
     },
     onError: (err) => {
-      toast.error(err instanceof Error ? err.message : "导出失败");
+      toast.error(resolveUserErrorMessage(err, "导出失败"));
     },
   });