add documentation

Assets/Features/VoxelWorld/Contracts/NavMeshWorldEnums.cs

@@ -1,18 +1,38 @@
 namespace InfiniteWorld.VoxelWorld.Contracts
 {
+    /// <summary>
+    /// Identifies why a point contributes to nav coverage so planners and diagnostics can treat different sources appropriately.
+    /// </summary>
     public enum WorldInterestKind
     {
+        /// <summary>Coverage seeded by the current player-controlled actor.</summary>
         PlayerActor = 0,
+
+        /// <summary>Coverage seeded by an active NPC that still requires authoritative pathing.</summary>
         ActiveNpc = 1,
+
+        /// <summary>Coverage seeded by a spawn location that should be warm before actors start moving.</summary>
         SpawnAnchor = 2,
+
+        /// <summary>Coverage seeded by a short-lived route hint that biases planning ahead of movement.</summary>
         TransientNavHint = 3,
+
+        /// <summary>Fallback category for future interest sources that do not fit a more specific kind.</summary>
         Other = 4
     }
 
+    /// <summary>
+    /// Describes where a coverage window currently sits in the nav build lifecycle.
+    /// </summary>
     public enum NavCoverageState
     {
+        /// <summary>The window exists conceptually but still needs a fresh build.</summary>
         Pending = 0,
+
+        /// <summary>The window is currently rebuilding its runtime NavMesh data.</summary>
         Building = 1,
+
+        /// <summary>The window has ready NavMesh data that can answer pathing queries.</summary>
         Ready = 2
     }
 }