Pack logic cleanup

SVSim.Database/Models/GameConfigRoot.cs

@@ -0,0 +1,20 @@
+using Microsoft.EntityFrameworkCore;
+using SVSim.Database.Models.Config;
+
+namespace SVSim.Database.Models;
+
+/// <summary>
+/// The root of <see cref="GameConfiguration.Config"/>, stored as a single jsonb column.
+/// Each sub-object defaults to its own initialiser, so `new GameConfigRoot()` is fully populated
+/// with the canonical SV Classic / DCGEngine defaults.
+/// </summary>
+[Owned]
+public class GameConfigRoot
+{
+    public DefaultGrantsConfig  DefaultGrants  { get; set; } = new();
+    public PlayerConfig         Player         { get; set; } = new();
+    public DefaultLoadoutConfig DefaultLoadout { get; set; } = new();
+    public ChallengeConfig      Challenge      { get; set; } = new();
+    public RotationConfig       Rotation       { get; set; } = new();
+    public PackRateConfig       PackRates      { get; set; } = new();
+}