Nodes in the details tree side should show their object instance hash


There's tons of horizontal space next to each node. For each node, we can probably show the instance hash (maybe hidden by default and visible on hover if it's noisy). This can help debug situations where you're pulling in an inherited widget and you're not sure which one you pulled. Having a hash could help.

该 issue 没有指定文件或测试。请从 widget 节点的 DevTools 详情树 UI 入手，检查继承 widget 的渲染方式；确定应如何显示实例哈希，同时避免让树变得嘈杂。完成标准是每个节点都能公开其对象实例哈希，并且可见性行为与最终设计一致。

由索引模型根据 Issue 内容生成。