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The GitHub Actions job "Build" on texera.git/main has failed.
Run started by GitHub user yunyad (triggered by yunyad).

Head commit for run:
d1313346d0b54358185a1a0e54b89458221f277c / yunyad 
<114192306+yun...@users.noreply.github.com>
feat(gui): display the owner's avatar next to each CU (#3784)

### PR Description

This PR implements feature request #3578: displaying the owner's avatar
next to each CU (Compute Unit).

- Adds support for fetching and rendering the CU owner's avatar
- Avatar is typically shown using a small inline image next to the CU
label

This change improves UI clarity and helps users quickly identify
ownership in collaborative workflows.

### Demo
![Screen Recording 2025-09-30 at 5 38
25 
PM](https://github.com/user-attachments/assets/0df49717-ae07-45cd-953c-907508e10864)

Fix #3578

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Co-authored-by: Xinyuan Lin <xinyu...@uci.edu>

Report URL: https://github.com/apache/texera/actions/runs/18232167537

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