feat：简单添加管理员后台功能

client/src/lib/api.ts

@@ -0,0 +1,62 @@
+import { getToken, clearAuth } from './adminAuth';
+
+const API_BASE_URL = import.meta.env.VITE_API_BASE_URL || 'http://localhost:3000';
+
+export class ApiError extends Error {
+  status: number;
+
+  constructor(message: string, status: number) {
+    super(message);
+    this.status = status;
+  }
+}
+
+async function request<T>(path: string, init?: RequestInit): Promise<T> {
+  const token = getToken();
+
+  const headers: Record<string, string> = {
+    'Content-Type': 'application/json',
+  };
+
+  if (token) {
+    headers['Authorization'] = `Bearer ${token}`;
+  }
+
+  const res = await fetch(`${API_BASE_URL}${path}`, {
+    ...init,
+    headers: {
+      ...headers,
+      ...(init?.headers || {}),
+    },
+    credentials: 'include',
+  });
+
+  if (res.status === 401) {
+    clearAuth();
+  }
+
+  const data = (await res.json().catch(() => ({}))) as any;
+
+  if (!res.ok) {
+    throw new ApiError(data?.message || `请求失败: ${res.status}`, res.status);
+  }
+
+  return data as T;
+}
+
+export const api = {
+  adminLogin: (identifier: string, password: string) =>
+    request<any>('/admin/auth/login', {
+      method: 'POST',
+      body: JSON.stringify({ identifier, password }),
+    }),
+
+  listUsers: (limit = 100, offset = 0) =>
+    request<any>(`/admin/users?limit=${encodeURIComponent(limit)}&offset=${encodeURIComponent(offset)}`),
+
+  resetUserPassword: (userId: string, newPassword: string) =>
+    request<any>(`/admin/users/${encodeURIComponent(userId)}/reset-password`, {
+      method: 'POST',
+      body: JSON.stringify({ new_password: newPassword }),
+    }),
+};