add documentation

Assets/Features/VoxelWorldNavMesh/Runtime/VoxelWorldNavMeshConfig.cs

@@ -4,6 +4,9 @@ using UnityEngine;
 namespace InfiniteWorld.VoxelWorld.NavMesh
 {
     [Serializable]
+    /// <summary>
+    /// Inspector-friendly tuning parameters that bound how clustered nav coverage is shaped and rebuilt at runtime.
+    /// </summary>
     public sealed class VoxelWorldNavMeshConfig
     {
         [Min(0)] public int agentTypeId;