[Refactor] Replace hardcoded categories with data-driven SO system and abstract dice

- Add abstract dice system (IDie interface, DieDefinitionSO, StandardDieSO, DieInstance)
  to support future custom dice types while keeping backward compat via int[] DiceValues
- Replace YachtCategory enum and CategoryScorer switch with CategoryDefinitionSO hierarchy:
  SumOfValueCategorySO, NOfAKindCategorySO, FullHouseCategorySO, StraightCategorySO, SumAllCategorySO
- Add CategoryCatalogSO for ordered category collections and DiceCheckUtility for shared logic
- Refactor ScoringSystem, Views, GameManager, GameController to use SO references
- Update CategoryCondition modifier to use SO reference instead of enum
- Update all editor tests to use SO-based categories and DieInstance

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Assets/Scripts/Dice/DieDefinitionSO.cs

@@ -0,0 +1,36 @@
+using UnityEngine;
+
+namespace YachtDice.Dice
+{
+    /// <summary>
+    /// Абстрактное определение типа дайса.
+    /// Наследники описывают конкретные виды (стандартный d6, специальные и т.д.).
+    /// </summary>
+    public abstract class DieDefinitionSO : ScriptableObject
+    {
+        [Header("Identity")]
+        [SerializeField] private string id;
+        [SerializeField] private string displayName;
+        [SerializeField] private Sprite icon;
+
+        public string Id => id;
+        public string DisplayName => displayName;
+        public Sprite Icon => icon;
+
+        /// <summary>Количество граней.</summary>
+        public abstract int FaceCount { get; }
+
+        /// <summary>Возвращает массив всех возможных значений граней.</summary>
+        public abstract int[] GetFaceValues();
+
+#if UNITY_EDITOR
+        public static T CreateForTest<T>(string id, string displayName = null) where T : DieDefinitionSO
+        {
+            var so = CreateInstance<T>();
+            so.id = id;
+            so.displayName = displayName ?? id;
+            return so;
+        }
+#endif
+    }
+}