feat: SideNav 按 role 过滤菜单，/users 仅 zhipianren，/editor-desk 仅 zhipianren+zebian

frontend/src/components/Layout/SideNav.jsx

@@ -8,9 +8,16 @@ import {
   UserOutlined,
   TeamOutlined,
 } from '@ant-design/icons'
+import useAuthStore from '../../stores/authStore'
 
-const menuItems = [
+function SideNav() {
+  const navigate = useNavigate()
+  const location = useLocation()
+  const { user } = useAuthStore()
+
+  const allMenuItems = [
     { key: '/dashboard', icon: <DashboardOutlined />, label: '仪表盘' },
+    { key: '/editor-desk', icon: <FileTextOutlined />, label: '责编录入' },
     { key: '/tps', icon: <FileTextOutlined />, label: 'TPS 选题策划' },
     { key: '/knowledge', icon: <BookOutlined />, label: '知识库' },
     { key: '/doco', icon: <SyncOutlined />, label: '文稿对齐' },
@@ -18,9 +25,17 @@ const menuItems = [
     { key: '/users', icon: <TeamOutlined />, label: '用户管理' },
   ]
 
-function SideNav() {
-  const navigate = useNavigate()
-  const location = useLocation()
+  // 按角色过滤菜单项
+  const visibleItems = allMenuItems.filter(item => {
+    // /dashboard 三角色都可见
+    if (item.key === '/dashboard') return true
+    // /users 仅 zhipianren
+    if (item.key === '/users') return user?.role === 'zhipianren'
+    // /editor-desk 仅 zhipianren + zebian
+    if (item.key === '/editor-desk') return user?.role === 'zhipianren' || user?.role === 'zebian'
+    // 其余三角色都可见（保留后期 Phase 入口）
+    return true
+  })
 
   return (
     <div className="side-nav">
@@ -31,7 +46,7 @@ function SideNav() {
       <Menu
         mode="inline"
         selectedKeys={[location.pathname]}
-        items={menuItems}
+        items={visibleItems}
         onClick={({ key }) => navigate(key)}
         className="side-nav-menu"
       />