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BlueLaminate/BlueLaminate.EFCore/Configurations/SkinLandListingConfiguration.cs

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+using BlueLaminate.EFCore.Entities;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+namespace BlueLaminate.EFCore.Configurations;
+
+public class SkinLandListingConfiguration : IEntityTypeConfiguration<SkinLandListing>
+{
+    public void Configure(EntityTypeBuilder<SkinLandListing> entity)
+    {
+        // skin.land's offer id is the natural key; ingest upserts against it and must
+        // never create duplicates.
+        entity.HasIndex(e => e.ListingId).IsUnique();
+
+        entity.Property(e => e.Price).HasPrecision(18, 2);
+        // Full precision (matches SkinInstance/cs.money) even though skin.land offers
+        // aren't fingerprinted — keep the float lossless for later analysis.
+        entity.Property(e => e.FloatValue).HasColumnType("numeric(20,18)");
+
+        // Enum as text so the DB is self-describing (matches the project's leaning).
+        entity.Property(e => e.Status).HasConversion<string>();
+
+        // Targeted scrape: results are filtered/sorted by skin+wear and by activity.
+        entity.HasIndex(e => new { e.SkinId, e.ConditionId });
+        entity.HasIndex(e => e.Status);
+
+        // Each job targets a known skin, so this link is required (Restrict: a skin with
+        // live listings shouldn't be deleted out from under them).
+        entity.HasOne(e => e.Skin)
+            .WithMany()
+            .HasForeignKey(e => e.SkinId)
+            .OnDelete(DeleteBehavior.Restrict);
+
+        entity.HasOne(e => e.Condition)
+            .WithMany()
+            .HasForeignKey(e => e.ConditionId)
+            .OnDelete(DeleteBehavior.SetNull);
+    }
+}