Normalize admin API auth responses

server/api/admin/genre.post.ts

@@ -1,8 +1,8 @@
 import { readBody, setResponseStatus } from "h3"
 import { Genre } from "../../models/genre"
-import { requireAuthenticatedUser } from "../../utils/auth"
+import { defineAuthenticatedEventHandler, requireAuthenticatedUser } from "../../utils/auth"
 
-export default defineEventHandler(async (event) => {
+export default defineAuthenticatedEventHandler(async (event) => {
 	await requireAuthenticatedUser(event, true)
 
 	const body = await readBody<unknown>(event)