fix(libraries): respect grouping type

lib/screens/libraries/tabs/library_browse_tab.dart

@@ -626,9 +626,10 @@ class _LibraryBrowseTabState extends BaseLibraryTabState<MediaItem, LibraryBrows
   @override
   Future<LibraryPage<MediaItem>> fetchPage(int start, int size, AbortController? abort) async {
     final client = context.getMediaClientForLibrary(widget.library);
+    final filterParams = _buildFilterParams();
     final query = libraryQueryFromPlexMap(
-      map: _buildFilterParams(),
-      libraryKind: widget.library.kind,
+      map: filterParams,
+      libraryKind: filterParams.containsKey('type') ? null : widget.library.kind,
       offset: start,
       limit: size,
     );

lib/services/jellyfin_client/parts/browse.dart

@@ -274,10 +274,9 @@ mixin _JellyfinBrowseMethods on MediaServerCacheMixin {
     MediaKind? libraryKind,
     AbortController? abort,
   }) async {
-    // [libraryKind] takes priority over any kind already on [query] — the
-    // browse tab passes the library's actual kind (Series, Movie) to override
-    // a less specific value.
-    final effective = (libraryKind != null && libraryKind != MediaKind.unknown)
+    // [libraryKind] is only a fallback for library-default browsing. Explicit
+    // grouping types on [query] (seasons/episodes) must keep priority.
+    final effective = (query.kind == null && libraryKind != null && libraryKind != MediaKind.unknown)
         ? query.copyWith(kind: libraryKind)
         : query;
     return fetchLibraryContent(libraryId, effective, abort: abort);

test/services/jellyfin_client_urls_test.dart

@@ -795,6 +795,36 @@ void main() {
       expect(captured!.queryParameters['ImageTypeLimit'], '1');
     });
 
+    test('fetchLibraryPagedContent uses library kind only when query kind is absent', () async {
+      final captured = <Uri>[];
+      final scoped = JellyfinClient.forTesting(
+        connection: _conn(),
+        httpClient: MockClient((req) async {
+          captured.add(req.url);
+          return http.Response(
+            jsonEncode({'Items': const [], 'TotalRecordCount': 0}),
+            200,
+            headers: {'content-type': 'application/json'},
+          );
+        }),
+      );
+      addTearDown(scoped.close);
+
+      await scoped.fetchLibraryPagedContent(
+        'lib-1',
+        query: const LibraryQuery(offset: 0, limit: 20),
+        libraryKind: MediaKind.show,
+      );
+      await scoped.fetchLibraryPagedContent(
+        'lib-1',
+        query: const LibraryQuery(kind: MediaKind.episode, offset: 0, limit: 20),
+        libraryKind: MediaKind.show,
+      );
+
+      expect(captured[0].queryParameters['IncludeItemTypes'], 'Series');
+      expect(captured[1].queryParameters['IncludeItemTypes'], 'Episode');
+    });
+
     test('fetchClientSideEpisodeQueue pages past the first 200 episodes', () async {
       final starts = <String?>[];
       final pagedClient = JellyfinClient.forTesting(