Renderflex overflow on the inspector screen hover card

```
════════ Exception caught by rendering library ═════════════════════════════════
The following assertion was thrown during layout:
A RenderFlex overflowed by 51 pixels on the right.

The relevant error-causing widget was
Row
description.dart:40
```

在 inspector 屏幕的 hover card 上重现 overflow，然后检查 description.dart:40 和报告的 Row。使用 exception 和屏幕截图确定导致 51 像素 overflow 的布局约束；完成的标准是 hover card 渲染时没有 RenderFlex overflow。

由索引模型根据 Issue 内容生成。