fix(mobile): stop full scene-list refetch on back-navigation (perf)

Returning to the Scenes list from a scene caused a full reload + phone load spike (report 5df48551). Cause: invalidateQueries(['scenes']) in SceneDetail/Player/Performer/Studio handlers — including the silent auto-enrich-thumbnail that fires on opening any thumbnail-less scene — forces react-query to refetch EVERY loaded page of the infinite list. Added refetchType:'none' to all ['scenes'] invalidations: marks stale without refetching the active list, which refreshes on pull-to-refresh / filter change instead. Scene detail (['scene', id]) still updates immediately.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

mobile/src/changelog.ts

@@ -16,6 +16,13 @@ export type ChangelogEntry = {
 };
 
 export const CHANGELOG: ChangelogEntry[] = [
+  {
+    id: '2026-06-20',
+    date: 'June 2026',
+    items: [
+      'Going back to the list from a scene no longer reloads everything or slows the phone.',
+    ],
+  },
   {
     id: '2026-06-19',
     date: 'June 2026',

mobile/src/screens/PerformerScenesScreen.tsx

@@ -62,7 +62,7 @@ export function PerformerScenesScreen() {
   const blacklistMutation = useMutation({
     mutationFn: () => client.addBlacklist('performer', id),
     onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: ['scenes'] });
+      queryClient.invalidateQueries({ queryKey: ['scenes'], refetchType: 'none' });
       queryClient.invalidateQueries({ queryKey: ['performer-scenes', id] });
       queryClient.invalidateQueries({ queryKey: ['performer-movies', id] });
       navigation.goBack();

mobile/src/screens/PlayerScreen.tsx

@@ -69,7 +69,10 @@ function useMarkSourceBroken(params: RouteParams) {
         await client.markPlaybackDead(params.sceneId, params.playbackId);
         queryClient.invalidateQueries({ queryKey: ['scene', params.sceneId] });
       }
-      queryClient.invalidateQueries({ queryKey: ['scenes'] });
+      // refetchType:'none' — oznacz stale bez wymuszania refetcha całej infinite-listy
+      // (po powrocie do Scenes powodowało przeładowanie wszystkich stron = obciążenie,
+      // bug-report 5df48551). Lista odświeży się przy pull-to-refresh / zmianie filtra.
+      queryClient.invalidateQueries({ queryKey: ['scenes'], refetchType: 'none' });
     } catch {
       // best-effort — i tak wracamy; źródło zostanie do następnej próby
     } finally {

mobile/src/screens/SceneDetailScreen.tsx

@@ -47,7 +47,7 @@ export function SceneDetailScreen() {
     mutationFn: () => (isFav ? client.removeSceneFavorite(id) : client.addSceneFavorite(id)),
     onSuccess: () => {
       queryClient.invalidateQueries({ queryKey: ['scene', id] });
-      queryClient.invalidateQueries({ queryKey: ['scenes'] });
+      queryClient.invalidateQueries({ queryKey: ['scenes'], refetchType: 'none' });
     },
   });
 
@@ -105,7 +105,7 @@ export function SceneDetailScreen() {
     onSuccess: (out) => {
       if (out.thumbnail_url) {
         queryClient.invalidateQueries({ queryKey: ['scene', id] });
-        queryClient.invalidateQueries({ queryKey: ['scenes'] });
+        queryClient.invalidateQueries({ queryKey: ['scenes'], refetchType: 'none' });
       }
     },
   });
@@ -126,7 +126,7 @@ export function SceneDetailScreen() {
     mutationFn: () => client.enrichSceneThumbnail(id, true),
     onSuccess: (out) => {
       queryClient.invalidateQueries({ queryKey: ['scene', id] });
-      queryClient.invalidateQueries({ queryKey: ['scenes'] });
+      queryClient.invalidateQueries({ queryKey: ['scenes'], refetchType: 'none' });
       Alert.alert(
         'Thumbnail',
         out.thumbnail_url ? 'Refreshed from the source page.' : 'Could not fetch a fresh thumbnail.',
@@ -697,7 +697,7 @@ function PlaybackButton({
           'The tube removed this video. We marked the source, you won\'t see it again.',
         );
         queryClient.invalidateQueries({ queryKey: ['scene', sceneId] });
-        queryClient.invalidateQueries({ queryKey: ['scenes'] });
+        queryClient.invalidateQueries({ queryKey: ['scenes'], refetchType: 'none' });
         return;
       }
       // 503 = transient extraction failure (hoster chwilowo niedostępny, network
@@ -789,7 +789,7 @@ function PlaybackButton({
             try {
               await client.markPlaybackDead(sceneId, source.id);
               queryClient.invalidateQueries({ queryKey: ['scene', sceneId] });
-              queryClient.invalidateQueries({ queryKey: ['scenes'] });
+              queryClient.invalidateQueries({ queryKey: ['scenes'], refetchType: 'none' });
             } catch (e) {
               Alert.alert('Failed', e instanceof Error ? e.message : String(e));
             }

mobile/src/screens/StudioScenesScreen.tsx

@@ -55,7 +55,7 @@ export function StudioScenesScreen() {
   const blacklistMutation = useMutation({
     mutationFn: () => client.addBlacklist('studio', studioId),
     onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: ['scenes'] });
+      queryClient.invalidateQueries({ queryKey: ['scenes'], refetchType: 'none' });
       queryClient.invalidateQueries({ queryKey: ['studio-scenes', slug] });
       navigation.goBack();
     },