[General] Allow faster copy path for files referenced by agent

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### Feature summary

When an agent references a file it is hard to get the path

### What problem are you trying to solve?

When the agent references some lines in a file clicking it opens a viewer in the review panel however there is not an easy way to see the path or copy it. The fastest path I see is opening the file in the viewer then clicking the folder view then right clicking the correct file to "copy path".

### Proposed solution

Add an option to either right click the file name at the top of the review panel or in the file viewer have a top banner with the full path that can be copied.

### Workflow impact

When there are small issues that are easier to fix via a code editor than getting the agent to fix it having quick access to the file path eases the flow.

### Installation context

_No response_

### Additional context

_No response_

首先定位 issue 中描述的 review panel 和 file viewer 组件，然后跟踪引用文件的打开方式。当用户可以从建议的位置之一快速查看并复制完整文件路径时，即视为完成；请在桌面应用中验证该交互。

由索引模型根据 Issue 内容生成。