fix(mobile): no center pause button while seeking + incognito diagnostic browser

Player (report dccc05e4): swipe-seek no longer force-opens full controls (it has its own
±time bubble), and the center play/pause button is hidden while actively seeking (pan or
scrub-bar drag) — kills the big pause that popped up mid-seek and lingered ~3.5s.

Diagnostics "open in browser" now routes to an in-app WebView with incognito=true instead
of Linking.openURL: fresh sessionless view of the host page + no NSFW URL dumped into the
user's real browser history (fits the app's privacy stance). New DiagnosticBrowser route.

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

mobile/src/changelog.ts

@@ -16,6 +16,14 @@ export type ChangelogEntry = {
 };
 
 export const CHANGELOG: ChangelogEntry[] = [
+  {
+    id: '2026-06-29b',
+    date: 'June 2026',
+    items: [
+      'Seeking (swipe or drag) no longer pops a big pause button into the middle of the screen.',
+      'Diagnostics "open in browser" now opens privately inside the app (incognito) — no cookies, no trace in your real browser.',
+    ],
+  },
   {
     id: '2026-06-29',
     date: 'June 2026',

mobile/src/navigation.tsx

@@ -11,6 +11,7 @@ import React from 'react';
 import { Pressable, Text, View } from 'react-native';
 import { AppLockSettingsScreen } from './screens/AppLockSettingsScreen';
 import { BlacklistScreen } from './screens/BlacklistScreen';
+import { DiagnosticBrowserScreen } from './screens/DiagnosticBrowserScreen';
 import { DonateScreen } from './screens/DonateScreen';
 import { FavoritesScreen } from './screens/FavoritesScreen';
 import { MovieDetailScreen } from './screens/MovieDetailScreen';
@@ -52,6 +53,8 @@ export type RootStackParamList = {
   AppLockSettings: undefined;
   Blacklist: undefined;
   Donate: undefined;
+  // In-app incognito browser do diagnostyki hostera (long-press na linku playbacku).
+  DiagnosticBrowser: { url: string };
   Player: {
     url: string;
     sceneId: string;
@@ -275,6 +278,11 @@ export function AppNavigator({ onLogout, client, appVersion }: AppNavigatorProps
           component={DonateScreen}
           options={{ title: 'Support project' }}
         />
+        <Stack.Screen
+          name="DiagnosticBrowser"
+          component={DiagnosticBrowserScreen}
+          options={{ title: 'Diagnostics (incognito)' }}
+        />
         <Stack.Screen
           name="Player"
           component={PlayerScreen}

mobile/src/screens/DiagnosticBrowserScreen.tsx

@@ -0,0 +1,44 @@
+import { useRoute, type RouteProp } from '@react-navigation/native';
+import React from 'react';
+import { ActivityIndicator, StyleSheet, View } from 'react-native';
+import { WebView } from 'react-native-webview';
+import type { RootStackParamList } from '../navigation';
+import { theme } from '../theme';
+
+// Diagnostyczny in-app browser w trybie incognito (report dccc05e4). Long-press na
+// linku playbacku → "Open in browser (diagnostics)" otwiera page_url hostera tutaj,
+// żeby user ocenił czy faktycznie broken. `incognito` → zero cookies/cache/historii:
+// świeży widok strony (jak u kogoś bez sesji) ORAZ nie zostawia NSFW URL-a w prawdziwej
+// przeglądarce usera. Wcześniej Linking.openURL wrzucał to do Chrome z jego sesją.
+export function DiagnosticBrowserScreen() {
+  const route = useRoute<RouteProp<RootStackParamList, 'DiagnosticBrowser'>>();
+  const { url } = route.params;
+  return (
+    <View style={styles.root}>
+      <WebView
+        source={{ uri: url }}
+        incognito
+        cacheEnabled={false}
+        thirdPartyCookiesEnabled={false}
+        startInLoadingState
+        renderLoading={() => (
+          <View style={styles.loading}>
+            <ActivityIndicator color={theme.fg} size="large" />
+          </View>
+        )}
+        style={styles.web}
+      />
+    </View>
+  );
+}
+
+const styles = StyleSheet.create({
+  root: { flex: 1, backgroundColor: theme.bg },
+  web: { flex: 1, backgroundColor: theme.bg },
+  loading: {
+    ...StyleSheet.absoluteFillObject,
+    alignItems: 'center',
+    justifyContent: 'center',
+    backgroundColor: theme.bg,
+  },
+});

mobile/src/screens/PlayerScreen.tsx

@@ -575,7 +575,9 @@ function NativeVideoPlayer({ params }: { params: RouteParams }) {
         .onStart(() => {
           cancelHide();
           panStartTimeRef.current = player.currentTime || 0;
-          setControlsVisible(true);
+          // NIE pokazujemy pełnych kontrolek przy swipe-seeku — pan ma własny popup
+          // ±czas (panSeekBubble). Wcześniej setControlsVisible(true) wyrzucał duży
+          // przycisk pauzy na środek i zostawiał go ~3.5s po puszczeniu (report dccc05e4).
           Haptics.impactAsync(Haptics.ImpactFeedbackStyle.Light).catch(() => {});
         })
         .onUpdate((e) => {
@@ -686,6 +688,9 @@ function NativeVideoPlayer({ params }: { params: RouteParams }) {
   // Priorytet: scrubber (palec na pasku) > pan-seek (swipe na video) > playback.
   const panSeekRatio = panSeekTarget !== null && dur > 0 ? panSeekTarget / dur : null;
   const displayRatio = scrubbingRatio ?? panSeekRatio ?? progressRatio;
+  // Aktywne przewijanie (palec na pasku albo swipe) — chowamy wtedy duży środkowy
+  // przycisk play/pauza (report dccc05e4): przy seeku nie chcesz wielkiej pauzy na ekranie.
+  const isSeeking = panSeekTarget !== null || scrubX !== null;
   const displayedTime =
     scrubbingRatio !== null
       ? scrubbingRatio * dur
@@ -775,11 +780,13 @@ function NativeVideoPlayer({ params }: { params: RouteParams }) {
           </Pressable>
         </View>
 
+        {!isSeeking && (
           <View style={styles.controlsCenter} pointerEvents="box-none">
             <Pressable onPress={togglePlay} hitSlop={20} style={styles.playBtn}>
               <Text style={styles.playBtnText}>{isPlaying ? '❚❚' : '▶'}</Text>
             </Pressable>
           </View>
+        )}
 
         <View style={styles.controlsBottom} pointerEvents="box-none">
           <Text style={styles.timeText}>{formatTime(displayedTime)}</Text>

mobile/src/screens/SceneDetailScreen.tsx

@@ -775,12 +775,15 @@ function PlaybackButton({
       'What do you want to do with this link?',
       [
         {
-          text: 'Open in browser (diagnostics)',
+          text: 'Open in browser (incognito)',
           onPress: async () => {
             try {
               const url = source.page_url || source.embed_url || source.stream_url;
               if (url) {
-                await Linking.openURL(url);
+                // In-app incognito WebView (report dccc05e4): świeży widok bez sesji/
+                // cookies usera i bez śladu w prawdziwej przeglądarce. Zamiast
+                // Linking.openURL (otwierał Chrome z historią + sesją).
+                nav.navigate('DiagnosticBrowser', { url });
               } else {
                 Alert.alert('No URL', 'This playback has no page_url to open.');
               }