新增独立快捷回复模块（团队/个人）

从知识库拆出快捷回复：支持团队暂存与发布同步、个人话术、输入码与工作台 / 调用，以及 CSV 导入导出；管理页顶栏与侧栏对齐。

web/src/components/layout/AgentSidebar.tsx

@@ -2,6 +2,7 @@ import { useLocation, useNavigate } from 'react-router-dom'
 import {
   AppstoreOutlined, MessageOutlined, HistoryOutlined, TeamOutlined,
   FileTextOutlined, BarChartOutlined, SettingOutlined, LogoutOutlined,
+  ThunderboltOutlined,
 } from '@ant-design/icons'
 import { useAuth } from '@/stores/auth'
 
@@ -10,6 +11,7 @@ const menuItems = [
   { key: '/agent/customers', icon: <TeamOutlined />, label: '客户管理' },
   { key: '/agent/chat-history', icon: <HistoryOutlined />, label: '对话记录' },
   { key: '/agent/knowledge', icon: <FileTextOutlined />, label: '知识库' },
+  { key: '/agent/quick-replies', icon: <ThunderboltOutlined />, label: '快捷回复' },
   { key: '/agent/statistics', icon: <BarChartOutlined />, label: '数据统计' },
   { key: '/agent/settings', icon: <SettingOutlined />, label: '系统设置' },
 ]