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

client/src/pages/ProjectsPage.tsx

@@ -1,15 +1,14 @@
+import { resolveErrorMessage as resolveUserErrorMessage } from "../lib/resolveErrorMessage";
 import { Link, useNavigate, useSearchParams } from "react-router-dom";
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { useMemo, useState } from "react";
 import { fetchEmployees } from "../api/employees";
-import { mapApiErrorMessage } from "../api/errorMessages";
 import {
   createProject,
   fetchProjects,
   type ProjectListItem,
   type ProjectStatus,
 } from "../api/projects";
-import { isApiError } from "../api/types";
 import { useAuth } from "../auth/AuthContext";
 import { hasAnyPermission } from "../auth/permissions";
 import { DateTextInput } from "../components/common/DateTextInput";
@@ -45,10 +44,7 @@ const STATUS_OPTIONS: Array<{ value: "all" | ProjectStatus; label: string }> = [
 ];
 
 function resolveError(error: unknown, fallback = "操作失败") {
-  if (isApiError(error)) {
-    return `${error.code}: ${mapApiErrorMessage(error.code, error.details, error.message)}`;
-  }
-  return error instanceof Error ? error.message : fallback;
+  return resolveUserErrorMessage(error, fallback);
 }
 
 function summaryLine(item: ProjectListItem) {