fix: complete first version issue remediation

src/apps/admin/AdminChannelReportPage.tsx

@@ -1,9 +1,11 @@
 import { useEffect, useMemo, useState } from 'react';
-import { Plus, Search } from 'lucide-react';
+import { ArrowLeft, Plus, Search } from 'lucide-react';
+import { useNavigate } from 'react-router-dom';
 import { adminApi, type AdminChannel, type ChannelReportField } from '@/api/adminApi';
 import { Breadcrumb, Button, Input, Modal, Select, Table, Textarea, Tag, type TableColumn } from '@/components/ui';
 
 export function AdminChannelReportPage() {
+  const navigate = useNavigate();
   const [channels, setChannels] = useState<AdminChannel[]>([]);
   const [fields, setFields] = useState<ChannelReportField[]>([]);
   const [channelId, setChannelId] = useState('');
@@ -60,7 +62,10 @@ export function AdminChannelReportPage() {
           <Breadcrumb items={['报备管理', '通道报备配置']} />
           <h1>通道报备配置</h1>
         </div>
-        <Button disabled={!channelId} icon={<Plus size={16} />} onClick={() => setModalOpen(true)}>新增字段</Button>
+        <div className="page-actions">
+          <Button icon={<ArrowLeft size={16} />} onClick={() => navigate('/admin/channels')} variant="ghost">返回通道列表</Button>
+          <Button disabled={!channelId} icon={<Plus size={16} />} onClick={() => setModalOpen(true)}>新增字段</Button>
+        </div>
       </div>
       {error ? <p className="form-error">{error}</p> : null}