feat(router): guard beforeLoad en /settings para client_editor y client_viewer

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/router.tsx

@@ -1,5 +1,5 @@
 import { lazy, Suspense, useEffect } from 'react'
-import { createRouter, createRootRoute, createRoute, Outlet, useNavigate, useRouterState } from '@tanstack/react-router'
+import { createRouter, createRootRoute, createRoute, redirect, Outlet, useNavigate, useRouterState } from '@tanstack/react-router'
 import { WorkspacePageWithBoundary } from '@/features/workspace/WorkspacePage'
 import { ImportPage } from '@/features/import/ImportPage'
 import { LibraryPage } from '@/features/library/LibraryPage'
@@ -131,6 +131,12 @@ const settingsRoute = createRoute({
   getParentRoute: () => rootRoute,
   path: '/settings',
   component: SettingsPage,
+  beforeLoad: ({ context }) => {
+    const role = (context as { auth?: { user?: { platformRole?: string } } }).auth?.user?.platformRole
+    if (role === 'client_editor' || role === 'client_viewer') {
+      throw redirect({ to: '/library' })
+    }
+  },
 })
 
 const resourcesRoute = createRoute({