web/src/routes/+layout.svelte

@@ -168,9 +168,14 @@
   style="display: none"
 ></audio>
 
+<QueryClientProvider client={queryClient}>
+  <!-- QueueDrawer must be inside the provider: its rows render LikeButton,
+       which calls useQueryClient() at init. The drawer's <aside> is always
+       mounted, so the moment the queue is populated (on first play) those
+       LikeButtons instantiate — outside the provider they throw
+       "No QueryClient was found" and abort the play flush. -->
   <QueueDrawer />
 
-<QueryClientProvider client={queryClient}>
   {#if user.value !== null && page.url.pathname !== '/login' && page.url.pathname !== '/now-playing'}
     <Shell>{@render children()}</Shell>
   {:else}