Preserve native list row menu anchors during deletion

platform/apple/Sources/LUIAppleBackend/LUIAppleBackend.swift

@@ -171,7 +171,7 @@ struct LUIChildData: Equatable {
     /// Per-child layout fields keyed by child id; extension and unmounted
     /// children have no entry.
     var layout: [Int: LUIChildLayout] = [:]
-    /// First `context-menu` child containing at least one `menu-item`.
+    /// First `context-menu` child, retained even while its actions are empty.
     var contextMenuID: Int?
     /// First `dropdown-menu` / `tooltip` child carrying an `anchor` prop.
     var anchoredMenuID: Int?
@@ -1635,9 +1635,10 @@ public final class LUIAppleBackend {
             case .contextMenu:
                 if !sawContextMenu {
                     sawContextMenu = true
-                    if child.children.contains(where: { models[$0]?.kind == .menuItem }) {
-                        data.contextMenuID = childID
-                    }
+                    // Menu membership can change before a native list row
+                    // is removed. Its presentation anchor must retain the
+                    // same lifetime as the context-menu node itself.
+                    data.contextMenuID = childID
                 }
             case .swipeActions, .listSectionHeader, .listSectionFooter:
                 break

platform/apple/Sources/LUIAppleBackend/LUISwiftUIRoot.swift

@@ -4845,7 +4845,8 @@ private struct LUIListItemView: View {
             ) {
                 Spacer(minLength: 8)
             }
-            if let contextMenu, swipeMenu == nil {
+            if let contextMenu, !contextMenu.children.isEmpty, swipeMenu == nil,
+               !model.derived.styleClassTokens.contains("context-menu-only") {
                 Menu {
                     LUINativeMenuActions(model: contextMenu, backend: backend)
                 } label: {
@@ -5004,22 +5005,21 @@ private struct LUIListItemView: View {
     }
 
     /// Whether the row should keep a `.swipeActions` slot at all, decided only
-    /// by node kinds (immutable), so an item's enabled/disabled flips never
-    /// attach or detach the modifier. Toggling `.swipeActions` on a live
+    /// by the context-menu node's lifetime, so action membership and enabled
+    /// changes never attach or detach the modifier. Toggling `.swipeActions` on a live
     /// collection cell makes SwiftUI re-create the cell; when that races a
     /// row-delete coalesced into the same batch update, the collection sees a
     /// stale item count and throws NSInternalInconsistencyException.
     private var swipeActionsAnchor: LUINodeModel? {
         #if os(iOS)
-        guard isNativeListRow, let contextMenu else { return nil }
+        guard isNativeListRow,
+              !model.derived.styleClassTokens.contains("context-menu-only"),
+              let contextMenu else { return nil }
         // An explicit swipe-actions child takes over the edges; the context
         // menu is not consumed and stays reachable via the ellipsis button.
         guard !model.children.contains(where: {
             backend.model(id: $0)?.kind == .swipeActions
         }) else { return nil }
-        guard contextMenu.children.contains(where: {
-            backend.model(id: $0)?.kind == .menuItem
-        }) else { return nil }
         return contextMenu
         #else
         return nil

platform/apple/Tests/LUIAppleBackendTests/LUIAppleBackendTests.swift

@@ -70,6 +70,31 @@ struct LUISwiftUIBackendTests {
         #expect(tracker.title == nil)
     }
 
+    @Test("removing the last context action retains its native row anchor")
+    func emptyContextMenuRetainsRowAnchor() throws {
+        let backend = LUIAppleBackend()
+        try backend.apply(json: """
+        {"generation":1,"ops":[
+          {"op":"create-node","id":1,"kind":"list-item"},
+          {"op":"set-prop","id":1,"property":"text","value":"Local graph"},
+          {"op":"create-node","id":2,"kind":"context-menu"},
+          {"op":"create-node","id":3,"kind":"menu-item"},
+          {"op":"set-prop","id":3,"property":"text","value":"Delete local graph"},
+          {"op":"set-prop","id":3,"property":"press-enabled","value":true},
+          {"op":"insert-child","parent":2,"child":3,"index":0},
+          {"op":"insert-child","parent":1,"child":2,"index":0}
+        ]}
+        """)
+        let row = try #require(backend.model(id: 1))
+        #expect(row.childData.contextMenuID == 2)
+        try backend.apply(json: """
+        {"generation":2,"ops":[{"op":"remove-child","parent":2,"child":3},{"op":"detach-subtree","id":3}]}
+        """)
+        #expect(backend.model(id: 1) === row)
+        #expect(row.childData.contextMenuID == 2)
+        #expect(backend.model(id: 2)?.children.isEmpty == true)
+    }
+
     @Test("virtual window replacement bypasses the collection burst delay")
     func virtualWindowReplacementCommitsImmediately() throws {
         let backend = LUIAppleBackend()