wip to be discuss

goal is to reduce pressure on the backend (should be around ~60% capacity reduction on that endpoint)

src/frontend/src/features/auth/api/fetchUser.ts

@@ -18,7 +18,7 @@ export const fetchUser = (
   }
 ): Promise<ApiUser | false> => {
   return new Promise((resolve, reject) => {
-    fetchApi<ApiUser>('/users/me')
+    fetchApi<ApiUser>('/users/me/')
       .then(resolve)
       .catch((error) => {
         // we assume that a 401 means the user is not logged in

src/frontend/src/features/rooms/components/LobbyProvider.tsx

@@ -12,7 +12,7 @@ import { keys } from '@/api/queryKeys'
 import { queryClient } from '@/api/queryClient'
 import { ApiError } from '@/api/ApiError'
 
-export const POLL_INTERVAL_MS = 1000
+export const POLL_INTERVAL_MS = 3000
 export const LAZY_POLL_INTERVAL_MS = 10_000
 
 export const LobbyProvider = () => {
@@ -37,7 +37,7 @@ export const LobbyProvider = () => {
         if (isParticipantsOpen) return POLL_INTERVAL_MS
         return LAZY_POLL_INTERVAL_MS
       },
-      refetchIntervalInBackground: true,
+      refetchIntervalInBackground: false,
     })
 
   // Triggers: each one-shot, idempotent, deduped by React Query if