refactor(types): drop NodeInternalsItem type

src/container/EdgeRenderer/utils.ts

@@ -172,13 +172,13 @@ export function getNodeData(nodeInternals: NodeInternals, nodeId: string): [Rect
     !node.handleBounds ||
     !node.width ||
     !node.height ||
-    typeof node.positionAbsolute.x === 'undefined' ||
-    typeof node.positionAbsolute.y === 'undefined';
+    typeof node.positionAbsolute?.x === 'undefined' ||
+    typeof node.positionAbsolute?.y === 'undefined';
 
   return [
     {
-      x: node?.positionAbsolute.x || 0,
-      y: node?.positionAbsolute.y || 0,
+      x: node?.positionAbsolute?.x || 0,
+      y: node?.positionAbsolute?.y || 0,
       width: node?.width || 0,
       height: node?.height || 0,
     },

src/container/NodeRenderer/index.tsx

@@ -92,8 +92,8 @@ const NodeRenderer = (props: NodeRendererProps) => {
             sourcePosition={node.sourcePosition}
             targetPosition={node.targetPosition}
             hidden={node.hidden}
-            xPos={node.positionAbsolute.x}
-            yPos={node.positionAbsolute.y}
+            xPos={node.positionAbsolute?.x ?? 0}
+            yPos={node.positionAbsolute?.y ?? 0}
             dragging={!!node.dragging}
             isInitialized={!!isInitialized}
             snapGrid={snapGrid}
@@ -115,7 +115,7 @@ const NodeRenderer = (props: NodeRendererProps) => {
             isConnectable={isConnectable}
             resizeObserver={resizeObserver}
             dragHandle={node.dragHandle}
-            zIndex={node.z}
+            zIndex={node.z ?? 0}
             isParent={!!node.isParent}
             noDragClassName={props.noDragClassName}
             noPanClassName={props.noPanClassName}