fix: notify season screen when download is deleted

lib/screens/season_detail_screen.dart

@@ -102,6 +102,9 @@ class _SeasonDetailScreenState extends State<SeasonDetailScreen>
 
   @override
   void onDeletionEvent(DeletionEvent event) {
+    // Download-only deletions should only remove items when viewing offline content
+    if (event.isDownloadOnly && !widget.isOffline) return;
+
     // If we have an episode that matches the rating key exactly, then remove it from our list
     final index = _episodes.indexWhere((e) => e.ratingKey == event.ratingKey);
     if (index != -1) {

lib/utils/deletion_notifier.dart

@@ -31,12 +31,17 @@ class DeletionEvent with HierarchicalEventMixin {
   /// For an episode: 1. For a season: its episode count. For a show: its total episode count.
   final int leafCount;
 
+  /// True if only the local download was deleted (not the server-side media).
+  /// Screens should only remove items for download deletions when in offline mode.
+  final bool isDownloadOnly;
+
   DeletionEvent({
     required this.ratingKey,
     required this.serverId,
     required this.parentChain,
     required this.mediaType,
     this.leafCount = 1,
+    this.isDownloadOnly = false,
   }) : globalKey = '$serverId:$ratingKey';
 
   @override
@@ -68,7 +73,7 @@ class DeletionNotifier extends BaseNotifier<DeletionEvent> {
   }
 
   /// Helper to emit a deletion event from metadata
-  void notifyDeleted({required PlexMetadata metadata}) {
+  void notifyDeleted({required PlexMetadata metadata, bool isDownloadOnly = false}) {
     notify(
       DeletionEvent(
         ratingKey: metadata.ratingKey,
@@ -76,6 +81,7 @@ class DeletionNotifier extends BaseNotifier<DeletionEvent> {
         parentChain: _buildParentChain(metadata),
         mediaType: metadata.type,
         leafCount: metadata.leafCount ?? 1,
+        isDownloadOnly: isDownloadOnly,
       ),
     );
   }

lib/widgets/media_context_menu.dart

@@ -1063,6 +1063,8 @@ class MediaContextMenuState extends State<MediaContextMenu> {
 
       if (context.mounted) {
         showSuccessSnackBar(context, t.downloads.downloadDeleted);
+        // Notify DeletionAware screens (e.g. offline season detail)
+        DeletionNotifier().notifyDeleted(metadata: metadata, isDownloadOnly: true);
         // Refresh the view if needed
         widget.onRefresh?.call(metadata.ratingKey);
       }