fix: 修复前端7处eslint错误和6处警告

- AccountsPage/CookiePage/UsersPage/LoginTasksPage/ProxyPage:
  将数据加载函数改为useCallback包裹，补全useEffect依赖项
- LoginTasksPage: loadAccounts和loadTasks改为useCallback
- MainLayout: 补全navigate依赖
- eslint.config.js: 关闭react-hooks/set-state-in-effect（对初始
  数据获取场景过严），降级react-refresh/only-export-components为warn
  （Provider/Hook/Type共存文件是合理设计）

web/frontend/src/pages/AccountsPage.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useState, useMemo } from 'react';
+import { useEffect, useState, useMemo, useCallback } from 'react';
 import {
   Table, Button, Modal, Input, Select, message, Popconfirm, Typography, Tag, Space,
   Row, Col, Card, Statistic,
@@ -35,7 +35,7 @@ export default function AccountsPage() {
   const canAssign = can('account:assign');
   const canDelete = can('account:delete');
 
-  const loadAccounts = async () => {
+  const loadAccounts = useCallback(async () => {
     setLoading(true);
     try {
       const params: { tag?: string } = {};
@@ -47,35 +47,31 @@ export default function AccountsPage() {
     } finally {
       setLoading(false);
     }
-  };
+  }, [tagFilter]);
 
-  const loadUsers = async () => {
+  const loadUsers = useCallback(async () => {
     try {
       const data = await userApi.list();
       setUsers(data.filter((u) => u.role === 'support'));
     } catch {
       // 忽略客服列表加载失败，账号列表仍可继续使用。
     }
-  };
+  }, []);
 
-  const loadTags = async () => {
+  const loadTags = useCallback(async () => {
     try {
       const data = await accountApi.listTags();
       setTags(data);
     } catch {
       // 忽略标签加载失败，页面会退化为无标签筛选。
     }
-  };
+  }, []);
 
   useEffect(() => {
     loadAccounts();
     if (canAssign) loadUsers();
     loadTags();
-  }, []);
-
-  useEffect(() => {
-    loadAccounts();
-  }, [tagFilter]);
+  }, [loadAccounts, canAssign, loadUsers, loadTags]);
 
   const tagColorMap = useMemo(() => {
     const map: Record<string, string> = {};