Stats: stat sheets, formulas, archetypes, traits, stat pools, actions, conditions and sheet panel

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/TestScope.cs

@@ -0,0 +1,22 @@
+namespace Cthangover.Mods.Stats.Tests
+{
+    using System;
+    using System.Collections.Generic;
+    using Cthangover.Mods.Stats.Formulas;
+
+    /// <summary>A formula scope over a plain dictionary and a seeded generator, for the tests.</summary>
+    public class TestScope : IFormulaScope
+    {
+        private readonly Dictionary<string, double> values;
+
+        public TestScope(Dictionary<string, double> values, int seed = 7)
+        {
+            this.values = new Dictionary<string, double>(values ?? new Dictionary<string, double>(), StringComparer.OrdinalIgnoreCase);
+            Random = new Random(seed);
+        }
+
+        public bool TryGet(string name, out double value) => values.TryGetValue(name, out value);
+
+        public Random Random { get; }
+    }
+}