🐛 Add user authentication check in admin route to restrict access for non-superusers (#2145)

Author: alejsdev

frontend/src/routes/_layout/admin.tsx

@@ -1,5 +1,5 @@
 import { useSuspenseQuery } from "@tanstack/react-query"
-import { createFileRoute } from "@tanstack/react-router"
+import { createFileRoute, redirect } from "@tanstack/react-router"
 import { Suspense } from "react"
 
 import { type UserPublic, UsersService } from "@/client"
@@ -18,6 +18,14 @@ function getUsersQueryOptions() {
 
 export const Route = createFileRoute("/_layout/admin")({
   component: Admin,
+  beforeLoad: async () => {
+    const user = await UsersService.readUserMe()
+    if (!user.is_superuser) {
+      throw redirect({
+        to: "/",
+      })
+    }
+  },
   head: () => ({
     meta: [
       {