Add alias display for Agent

**Describe your suggestion or comments here**
The current display of the Agent node on the web page is "name", which is not very user-friendly.

**Describe factors or reasons you've considered**
None.

**Additional context**

No files or tests are named. Start by locating the web-page entry point that renders the Agent node and trace where its current "name" display value comes from. Done means the Agent node shows a user-friendly alias instead of the current name, with the existing page behavior preserved.

Written by the indexing model from the issue text.