update image caching

src/components/common/OptimizedImage.tsx

@@ -60,7 +60,7 @@ const OptimizedImage: React.FC<OptimizedImageProps> = ({
   onError,
   contentFit = 'cover',
   transition = 200,
-  cachePolicy = 'memory-disk'
+  cachePolicy = 'memory'
 }) => {
   const [isLoaded, setIsLoaded] = useState(false);
   const [hasError, setHasError] = useState(false);

src/components/home/ContentItem.tsx

@@ -258,7 +258,7 @@ const ContentItem = ({ item, onPress, shouldLoadImage: shouldLoadImageProp, defe
                 source={{ uri: optimizedPosterUrl }}
                 style={[styles.poster, { backgroundColor: currentTheme.colors.elevation1, borderRadius: posterRadius }]}
                 contentFit="cover"
-                cachePolicy={Platform.OS === 'android' ? 'disk' : 'memory-disk'}
+                cachePolicy="memory"
                 transition={0}
                 allowDownscaling
                 priority="normal" // Normal priority for horizontal scrolling

src/components/home/HeroCarousel.tsx

@@ -165,7 +165,7 @@ const HeroCarousel: React.FC<HeroCarouselProps> = ({ items, loading = false }) =
             style={styles.backgroundImage as ImageStyle}
             contentFit="cover"
             blurRadius={Platform.OS === 'android' ? 8 : 12}
-            cachePolicy="memory-disk"
+            cachePolicy="memory"
             transition={0}
             priority="low"
           />
@@ -191,7 +191,7 @@ const HeroCarousel: React.FC<HeroCarouselProps> = ({ items, loading = false }) =
                 source={{ uri: data[activeIndex + 1].banner || data[activeIndex + 1].poster }}
                 style={{ width: 1, height: 1 }}
                 contentFit="cover"
-                cachePolicy="memory-disk"
+                cachePolicy="memory"
                 transition={0}
               />
             )}
@@ -200,7 +200,7 @@ const HeroCarousel: React.FC<HeroCarouselProps> = ({ items, loading = false }) =
                 source={{ uri: data[activeIndex - 1].banner || data[activeIndex - 1].poster }}
                 style={{ width: 1, height: 1 }}
                 contentFit="cover"
-                cachePolicy="memory-disk"
+                cachePolicy="memory"
                 transition={0}
               />
             )}
@@ -285,7 +285,7 @@ const CarouselCard: React.FC<CarouselCardProps> = memo(({ item, colors, logoFail
             style={styles.banner as ImageStyle}
             contentFit="cover"
             transition={0}
-            cachePolicy="memory-disk"
+            cachePolicy="memory"
           />
           <LinearGradient
             colors={["transparent", "rgba(0,0,0,0.2)", "rgba(0,0,0,0.6)"]}
@@ -300,7 +300,7 @@ const CarouselCard: React.FC<CarouselCardProps> = memo(({ item, colors, logoFail
               style={styles.logo as ImageStyle}
               contentFit="contain"
               transition={0}
-              cachePolicy="memory-disk"
+              cachePolicy="memory"
               onError={onLogoError}
             />
           ) : (

src/screens/LibraryScreen.tsx

@@ -403,11 +403,12 @@ const LibraryScreen = () => {
     >
       <View>
         <View style={[styles.posterContainer, { shadowColor: currentTheme.colors.black }]}> 
-          <Image
+              <Image
             source={{ uri: item.poster || 'https://via.placeholder.com/300x450' }}
             style={styles.poster}
             contentFit="cover"
-            transition={300}
+                cachePolicy="memory"
+                transition={300}
           />
           {item.watched && (
             <View style={styles.watchedIndicator}>

src/screens/TraktSettingsScreen.tsx

@@ -199,6 +199,8 @@ const TraktSettingsScreen: React.FC = () => {
               await traktService.logout();
               setIsAuthenticated(false);
               setUserProfile(null);
+              // Refresh auth status in the integration hook to ensure UI consistency
+              await refreshAuthStatus();
             } catch (error) {
               logger.error('[TraktSettingsScreen] Error signing out:', error);
               openAlert('Error', 'Failed to sign out of Trakt.');
@@ -494,6 +496,14 @@ const TraktSettingsScreen: React.FC = () => {
           </View>
         )}
       </ScrollView>
+      
+      <CustomAlert
+        visible={alertVisible}
+        title={alertTitle}
+        message={alertMessage}
+        onClose={() => setAlertVisible(false)}
+        actions={alertActions}
+      />
     </SafeAreaView>
   );
 };

src/services/imageCacheService.ts

@@ -14,7 +14,7 @@ interface CachedImage {
 
 class ImageCacheService {
   private cache = new Map<string, CachedImage>();
-  private readonly CACHE_DURATION = 24 * 60 * 60 * 1000; // 24 hours
+  private readonly CACHE_DURATION = Infinity; // Session-only: valid until app close
   private readonly MAX_CACHE_SIZE = 25; // Further reduced maximum number of cached images
   private readonly MAX_MEMORY_MB = 40; // Further reduced maximum memory usage in MB
   private currentMemoryUsage = 0;