更新首页二维码，优化部分页面显示，更新 readme

src/app/(home)/docs/page.tsx

@@ -1,7 +1,3 @@
-import Link from 'next/link'
-import {Card, CardContent, CardDescription, CardHeader, CardTitle} from '@/components/ui/card'
-import {BookOpen, Lightbulb, Smartphone, Zap, HelpCircle, FileText, Settings, TrendingUp} from 'lucide-react'
-
 export default function DocsIndexPage() {
   return (
     <div></div>

src/app/(home)/docs/sidebar.tsx

@@ -105,7 +105,7 @@ export default function Sidebar({collapsed = false}: Props) {
     }))
   }
 
-  const getItemHref = (key: string) => `/help/${key}`
+  const getItemHref = (key: string) => `/docs/${key}`
 
   return (
     <aside

src/app/(home)/footer.tsx

@@ -15,8 +15,7 @@ export default function Footer(props: FooterProps) {
 
           <div className="flex flex-col gap-2 lg:gap-4 max-lg:w-1/2">
             <h3>商务合作</h3>
-            <p className="text-sm text-gray-400">大客户经理：张经理</p>
-            <p className="text-sm text-gray-400">微信：17796668888</p>
+            <p className="text-sm text-gray-400">微信/电话：177 9666 8888</p>
             <p className="text-sm text-gray-400">QQ： 70177252</p>
             <h3 className="hidden sm:block">服务保障</h3>
             <p className="text-sm text-gray-400 hidden sm:block">售前服务</p>

src/app/admin/channels/page.tsx

@@ -197,18 +197,6 @@ export default function ChannelsPage(props: ChannelsPageProps) {
           onSizeChange: size => refresh(1, size),
         }}
         columns={[
-          {
-            header: '批次号',
-            cell: ({row}) => {
-              const channel = row.original
-              const expired = isExpired(channel.expired_at)
-              return (
-                <div className={`${expired ? 'text-weak' : ''}`}>
-                  <span>{row.original.batch_no}</span>
-                </div>
-              )
-            },
-          },
           {
             header: '代理地址',
             cell: ({row}) => {