Initial Combat Implementation

Assets/_Project/Scripts/Simulation/Combat/AbilityPrefabElement.cs

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+using Unity.Entities;
+
+namespace ProjectM.Simulation
+{
+    /// <summary>
+    /// Companion buffer on the AbilityDatabase singleton mapping an ability id to its projectile ghost
+    /// prefab entity. Prefab/entity references are kept OUT of the blob (blob assets don't remap entity
+    /// references); they are baked here via GetEntity, which the entity serializer patches correctly.
+    /// </summary>
+    public struct AbilityPrefabElement : IBufferElementData
+    {
+        public byte Id; // AbilityId
+        public Entity Prefab;
+    }
+}