Closes #44184
Closes #45729

Before (incorrect; __init__ is bold):
<img width="391" height="87" alt="image"
src="https://github.com/user-attachments/assets/f453dbf1-224f-49fe-9d94-d0d83ad68ac5"
/>

After (\_\_init\_\_ renders correctly):
<img width="385" height="80" alt="image"
src="https://github.com/user-attachments/assets/1f7892f1-559a-436b-bde1-00c5c3bce8de"
/>

Release Notes:

- Agent: Fix rendering of filenames in edit tool header