feat(vfx): port retail hidden and teleport presentation

Preserve canonical live-object ownership across Hidden transitions and remote teleport placement so effects, collision, streaming, and targeting remain synchronized.

src/AcDream.App/Rendering/EquippedChildRenderController.cs

@@ -219,6 +219,7 @@ public sealed class EquippedChildRenderController : IDisposable
             child.Entity.SetIndexedPartPoses(pose.PartLocal, child.PartAvailability);
             if (!ApplyParentWorldPose(child.Entity, parentWorld))
                 return false;
+            ApplyParentDrawVisibility(child.Entity, parent);
             child.Entity.ParentCellId = parent.ParentCellId;
             PublishChildPose(child.Entity, parentWorld, parent.ParentCellId, pose);
             if (parent.ParentCellId is { } parentCellId)
@@ -317,6 +318,7 @@ public sealed class EquippedChildRenderController : IDisposable
         if (entity is null)
             return false;
         ApplyParentWorldPose(entity, parentWorld);
+        ApplyParentDrawVisibility(entity, parentEntity);
         entity.ParentCellId = parentCellId;
         entity.ApplyAppearance(
             pose.AttachedParts,
@@ -338,6 +340,14 @@ public sealed class EquippedChildRenderController : IDisposable
             pose.AttachedParts,
             scale,
             entity);
+        if (_liveEntities.TryGetRecord(pending.ParentGuid, out LiveEntityRecord parentRecord)
+            && (parentRecord.FinalPhysicsState & PhysicsStateFlags.Hidden) != 0)
+        {
+            // A child attached while its parent is already Hidden inherits
+            // the same direct child NoDraw mutation retail applies from
+            // CPhysicsObj::set_hidden (0x00514C60).
+            _liveEntities.SetAttachedChildNoDraw(childGuid, noDraw: true);
+        }
         PublishChildPose(entity, parentWorld, parentEntity.ParentCellId, pose);
         Console.WriteLine(
             $"equipment: attached child=0x{childGuid:X8} parent=0x{pending.ParentGuid:X8} " +
@@ -376,6 +386,18 @@ public sealed class EquippedChildRenderController : IDisposable
         return true;
     }
 
+    /// <summary>
+    /// Preserve retail attachment-tree draw inheritance after adapting every
+    /// child CPhysicsObj into an independent retained draw entry. This does not
+    /// alter the child's own NoDraw state; parent-first ticking propagates an
+    /// ancestor's suppression through arbitrarily deep attachment chains.
+    /// </summary>
+    internal static void ApplyParentDrawVisibility(WorldEntity child, WorldEntity parent)
+    {
+        child.IsAncestorDrawVisible =
+            parent.IsDrawVisible && parent.IsAncestorDrawVisible;
+    }
+
     private static bool TryDecomposeWorldPose(
         Matrix4x4 world,
         out Vector3 position,
@@ -425,6 +447,20 @@ public sealed class EquippedChildRenderController : IDisposable
         return null;
     }
 
+    /// <summary>
+    /// Retail <c>CPhysicsObj::set_hidden</c> walks the direct CHILDLIST and
+    /// sets/clears each child's NoDraw bit before changing root collision/cell
+    /// presentation. Descendants are not recursively rewritten here.
+    /// </summary>
+    public void SetDirectChildrenNoDraw(uint parentGuid, bool noDraw)
+    {
+        foreach (AttachedChild child in _attachedByChild.Values)
+        {
+            if (child.ParentGuid == parentGuid)
+                _liveEntities.SetAttachedChildNoDraw(child.ChildGuid, noDraw);
+        }
+    }
+
     private void ResolveRelations(uint childGuid)
     {
         Relations.Resolve(