Added configurations for entity builders. Also added VoiceWorkLocaalization entity.

JSMR.Infrastructure/Data/Configuration/VoiceWorkConfiguration.cs

@@ -0,0 +1,51 @@
+using JSMR.Domain.Entities;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace JSMR.Infrastructure.Data.Configuration;
+
+public sealed class VoiceWorkConfiguration : IEntityTypeConfiguration<VoiceWork>
+{
+    public void Configure(EntityTypeBuilder<VoiceWork> builder)
+    {
+        builder.ToTable("voice_works");
+        builder.HasKey(x => x.VoiceWorkId);
+
+        builder.Property(x => x.ProductId)
+            .IsRequired()
+            .HasMaxLength(16);
+
+        builder.Property(x => x.OriginalProductId)
+            .HasMaxLength(16);
+
+        builder.Property(x => x.ProductName)
+            .IsRequired()
+            .HasMaxLength(256);
+
+        builder.Property(x => x.Description)
+            .HasMaxLength(512);
+
+        // Relationships
+        builder.HasOne(x => x.Circle)
+            .WithMany(c => c.VoiceWorks)
+            .HasForeignKey(x => x.CircleId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        builder.HasOne(x => x.Series)
+            .WithMany(s => s.VoiceWorks)
+            .HasForeignKey(x => x.SeriesId)
+            .OnDelete(DeleteBehavior.SetNull);
+
+        // Indexes for common filters/sorts
+        builder.HasIndex(x => x.ProductId).IsUnique();
+        builder.HasIndex(x => x.CircleId);
+        builder.HasIndex(x => x.SalesDate);
+        builder.HasIndex(x => x.ExpectedDate);
+        builder.HasIndex(x => x.Favorite);
+        builder.HasIndex(x => x.IsValid);
+        builder.HasIndex(x => x.SubtitleLanguage);
+        builder.HasIndex(x => x.AIGeneration);
+        builder.HasIndex(x => x.Downloads);
+        builder.HasIndex(x => x.WishlistCount);
+    }
+}