出现 Edge 跟 Node 交叉的情况

### 问题描述

下方的示例出现 Edge 跟 Node 交叉的情况

### 重现链接

https://codesandbox.io/p/sandbox/sweet-phoebe-n9t7v2?file=%2FApp.tsx%3A17%2C19

### 重现步骤

Edge 采用的配置是
`router: { name: "manhattan" },
connector: { name: "rounded" },`

### 预期行为

希望 Edge 不会交叉到 Node 上，正如 manhattan 所描述的功能，自动避开路径上的其他节点

### 平台

- 操作系统: macOS
- 网页浏览器: Google Chrome
- X6 版本: 2.16.1

### 屏幕截图或视频（可选）


### 补充说明（可选）

_No response_

Reproduce the behavior from the linked CodeSandbox in App.tsx around lines 17–19 using X6 2.16.1, with the Manhattan router and rounded connector configuration. Trace the edge-routing behavior responsible for the edge crossing a node; done means the edge automatically avoids other nodes as expected for Manhattan routing.

Written by the indexing model from the issue text.