fix: restore complete admin feature dependencies

src/app/admin/rooms/edit/[id]/page.tsx

@@ -42,7 +42,7 @@ export default async function RoomEditPage({
               </Badge>
             </h1>
             <p className="text-sm text-muted-foreground">
-              Owner: {room.owner.username} &middot; {room.users}/{room.usersMax} users
+              Owner: {room.owner?.username ?? room.ownerName} &middot; {room.users}/{room.usersMax} users
             </p>
           </div>
         </div>
@@ -61,7 +61,7 @@ export default async function RoomEditPage({
           state: room.state,
           usersMax: room.usersMax,
           users: room.users,
-          ownerName: room.owner.username,
+          ownerName: room.owner?.username ?? room.ownerName,
         }}
       />
     </div>