Seeding reorg

SVSim.Database/Models/Config/ConfigSectionAttribute.cs

@@ -0,0 +1,14 @@
+namespace SVSim.Database.Models.Config;
+
+/// <summary>
+/// Marks a POCO as a top-level GameConfig section. The <see cref="Name"/> is the storage key —
+/// it's the primary key in the <c>GameConfigs</c> table and the appsettings.json section name
+/// under <c>"GameConfig"</c>. Renaming a class is safe; renaming the section name here is a
+/// breaking change to stored data and config files.
+/// </summary>
+[AttributeUsage(AttributeTargets.Class, AllowMultiple = false, Inherited = false)]
+public sealed class ConfigSectionAttribute : Attribute
+{
+    public string Name { get; }
+    public ConfigSectionAttribute(string name) => Name = name;
+}