fix: limit mem cache resolution

lib/screens/discover_screen.dart

@@ -1032,6 +1032,19 @@ class _DiscoverScreenState extends State<DiscoverScreen>
                               heroItem.art ?? heroItem.grandparentArt,
                             ),
                             fit: BoxFit.cover,
+                            memCacheWidth:
+                                (MediaQuery.of(context).size.width *
+                                        MediaQuery.of(context).devicePixelRatio)
+                                    .clamp(900, 2400)
+                                    .round(),
+                            memCacheHeight:
+                                (MediaQuery.of(context).size.height *
+                                        MediaQuery.of(
+                                          context,
+                                        ).devicePixelRatio *
+                                        0.7)
+                                    .clamp(600, 1600)
+                                    .round(),
                             placeholder: (context, url) => Container(
                               color: Theme.of(
                                 context,
@@ -1099,6 +1112,13 @@ class _DiscoverScreenState extends State<DiscoverScreen>
                                   ),
                                   filterQuality: FilterQuality.medium,
                                   fit: BoxFit.contain,
+                                  memCacheWidth:
+                                      (400 *
+                                              MediaQuery.of(
+                                                context,
+                                              ).devicePixelRatio)
+                                          .clamp(200, 800)
+                                          .round(),
                                   alignment: isLargeScreen
                                       ? Alignment.bottomLeft
                                       : Alignment.bottomCenter,

lib/services/video_filter_manager.dart

@@ -27,7 +27,6 @@ class VideoFilterManager {
   /// Current player viewport size
   Size? _playerSize;
 
-
   /// Debounced video filter update with leading edge execution
   late final Debounce _debouncedUpdateVideoFilter;
 
@@ -87,7 +86,6 @@ class VideoFilterManager {
     }
   }
 
-
   /// Update the video scaling and positioning based on current display mode
   void updateVideoFilter() async {
     try {

lib/widgets/media_card.dart

@@ -978,15 +978,27 @@ Widget _buildPosterImage(BuildContext context, dynamic item) {
   }
 
   if (posterUrl != null) {
-    return Builder(
-      builder: (context) {
+    return LayoutBuilder(
+      builder: (context, constraints) {
         final client = _getClientForItem(context, item);
+        final devicePixelRatio = MediaQuery.of(context).devicePixelRatio;
+        // Fall back to a reasonable size if constraints are unbounded.
+        final targetWidth =
+            (constraints.maxWidth.isFinite ? constraints.maxWidth : 160) *
+            devicePixelRatio;
+        final targetHeight =
+            (constraints.maxHeight.isFinite ? constraints.maxHeight : 240) *
+            devicePixelRatio;
 
         return CachedNetworkImage(
           imageUrl: client.getThumbnailUrl(posterUrl!),
           fit: BoxFit.cover,
           width: double.infinity,
           height: double.infinity,
+          // Decode close to the rendered size to keep memory in check when
+          // many posters load at once.
+          memCacheWidth: targetWidth.clamp(120, 800).round(),
+          memCacheHeight: targetHeight.clamp(180, 1200).round(),
           filterQuality: FilterQuality.medium,
           fadeInDuration: const Duration(milliseconds: 300),
           placeholder: (context, url) => const SkeletonLoader(),

lib/widgets/playlist_item_card.dart

@@ -168,6 +168,7 @@ class _PlaylistItemCardState extends State<PlaylistItemCard>
       return Builder(
         builder: (context) {
           final client = _getClientForItem(context);
+          final devicePixelRatio = MediaQuery.of(context).devicePixelRatio;
 
           return ClipRRect(
             borderRadius: BorderRadius.circular(6),
@@ -175,6 +176,8 @@ class _PlaylistItemCardState extends State<PlaylistItemCard>
               imageUrl: client.getThumbnailUrl(posterUrl),
               width: 60,
               height: 90,
+              memCacheWidth: (60 * devicePixelRatio).round(),
+              memCacheHeight: (90 * devicePixelRatio).round(),
               fit: BoxFit.cover,
               placeholder: (context, url) => _buildPlaceholder(),
               errorWidget: (context, url, error) => _buildPlaceholder(),