fix(web): 出口重绑改走 POST /browsers/:alias/rebind（原 /network-exits/:id/rebind 无对应后端路由）

web/src/components/accounts/RebindEnvironment.tsx

@@ -1,18 +1,19 @@
 // 账号环境出口重绑：账号即环境下唯一的换绑入口（环境跟随账号，不再有独立环境页）。
-// 仅列举检测通过的出口；重绑走 POST /network-exits/:id/rebind（后端联动账号环境），成功后由父级刷新。
+// 仅列举检测通过的出口；重绑走 POST /browsers/:alias/rebind（alias=账号 ID，成功后由父级刷新）。
 import { useEffect, useMemo, useState } from 'react';
 import { Button, Flex, Select, Typography } from 'antd';
 import { getList } from '@/services/api';
 import { jsonOptions, request } from '@/requestErrorConfig';
 
 interface RebindEnvironmentProps {
+  accountID: string;
   binding: any;
   disabled?: boolean;
   onRebound: () => void | Promise<void>;
   onError: (error: unknown) => void;
 }
 
-export default function RebindEnvironment({ binding, disabled, onRebound, onError }: RebindEnvironmentProps) {
+export default function RebindEnvironment({ accountID, binding, disabled, onRebound, onError }: RebindEnvironmentProps) {
   const [exits, setExits] = useState<any[]>([]);
   const [exitsError, setExitsError] = useState(false);
   const [exitID, setExitID] = useState('');
@@ -47,7 +48,7 @@ export default function RebindEnvironment({ binding, disabled, onRebound, onErro
   async function rebind() {
     setBusy(true);
     try {
-      await request(`/network-exits/${encodeURIComponent(binding.network_exit_id ?? '')}/rebind`, jsonOptions('POST', { network_exit_id: exitID }));
+      await request(`/browsers/${encodeURIComponent(accountID)}/rebind`, jsonOptions('POST', { network_exit_id: exitID }));
       await onRebound();
     } catch (reason) {
       onError(reason);

web/src/pages/accounts/$id/index.tsx

@@ -283,6 +283,7 @@ export default function Page() {
               <Descriptions.Item label="不可调度原因">{binding.schedule_block_reason || '无'}</Descriptions.Item>
             </Descriptions>
             <RebindEnvironment
+              accountID={id}
               binding={binding}
               disabled={actionBusy}
               onRebound={async () => {