Add folder-aware filter extensions and descendant query provider

- Add FolderAwareFilterExtensions for LinkedChildren-based filtering
- Add IDescendantQueryProvider interface for database-specific queries
- Add MatchCriteria classes for folder filtering
- Add SqliteDescendantQueryProvider implementation

1 files changed, 6 insertions, 0 deletions

diff --git a/src/Jellyfin.Database/Jellyfin.Database.Implementations/MatchCriteria/HasChapterImages.cs b/src/Jellyfin.Database/Jellyfin.Database.Implementations/MatchCriteria/HasChapterImages.cs
new file mode 100644
index 0000000000..3dd84bbd27
--- /dev/null
+++ b/src/Jellyfin.Database/Jellyfin.Database.Implementations/MatchCriteria/HasChapterImages.cs
@@ -0,0 +1,6 @@
+namespace Jellyfin.Database.Implementations.MatchCriteria;
+
+/// <summary>
+/// Matches folders containing descendants with chapter images.
+/// </summary>
+public sealed record HasChapterImages : FolderMatchCriteria;