// Quick structure check - verifying PermNodeView component logic
const testNode = {
  perm_id: 1,
  parent_id: null,
  name: "系统管理",
  perm_type: "menu",
  level: 0,
  children: [
    {
      perm_id: 2,
      parent_id: 1,
      name: "用户管理",
      perm_type: "menu",
      level: 1,
      children: [
        {
          perm_id: 3,
          parent_id: 2,
          name: "查看用户",
          perm_type: "button",
          level: 2,
          children: undefined
        }
      ]
    }
  ]
};

console.log("✓ Parent node:", testNode.name, "has", testNode.children.length, "children");
console.log("✓ Child node:", testNode.children[0].name, "has", testNode.children[0].children.length, "children");
console.log("✓ Leaf node:", testNode.children[0].children[0].name, "has no children");