point offset,mouse hover Snap

### 问题描述

g2 v:5.0

### 重现链接

_No response_

### 重现步骤

_No response_

### 预期行为

_No response_

### 平台

- 操作系统: [macOS, Windows, Linux, React Native ...]
- 网页浏览器: [Google Chrome, Safari, Firefox]

### 屏幕截图或视频（可选）

_No response_

### 补充说明（可选）

_No response_

Start by reviewing G2 v5's mouse-hover and snap interaction behavior, using the attached screenshot as the only reported symptom. The issue provides no reproduction link, steps, platform, browser, file, or test, so first establish a minimal reproducible case. Done means the hover point offset is corrected and the snapping behavior is verified across the relevant interaction context.

Written by the indexing model from the issue text.