Seeding updated

SVSim.Database/Models/FeatureMaintenanceEntry.cs

@@ -0,0 +1,16 @@
+using System.ComponentModel.DataAnnotations.Schema;
+using SVSim.Database.Common;
+
+namespace SVSim.Database.Models;
+
+/// <summary>
+/// Per-feature maintenance toggle from /load/index data.feature_maintenance_list. Empty in current
+/// prod capture; recapture target if a feature ever gets disabled before EOS.
+/// </summary>
+public class FeatureMaintenanceEntry : BaseEntity<int>
+{
+    public string FeatureKey { get; set; } = string.Empty;
+
+    [Column(TypeName = "jsonb")]
+    public string Data { get; set; } = "{}";
+}