Add ImageInfo index

src/Jellyfin.Database/Jellyfin.Database.Implementations/ModelConfiguration/BaseItemImageInfoConfiguration.cs

@@ -0,0 +1,24 @@
+using Jellyfin.Database.Implementations.Entities;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace Jellyfin.Database.Implementations.ModelConfiguration;
+
+/// <summary>
+/// FluentAPI configuration for the BaseItemImageInfo entity.
+/// </summary>
+public class BaseItemImageInfoConfiguration : IEntityTypeConfiguration<BaseItemImageInfo>
+{
+    /// <inheritdoc/>
+    public void Configure(EntityTypeBuilder<BaseItemImageInfo> builder)
+    {
+        builder.HasKey(e => e.Id);
+        builder.HasOne(e => e.Item).WithMany(e => e.Images).HasForeignKey(e => e.ItemId);
+
+        // Index for efficient lookups and deletes by ItemId
+        builder.HasIndex(e => e.ItemId);
+
+        // Composite index for filtering by item and image type
+        builder.HasIndex(e => new { e.ItemId, e.ImageType });
+    }
+}