This PR makes the description in the callout that display general errors in the agent panel be rendered as markdown. This allow us to pass URLs to these error strings that will be clickable, improving the overall interaction with them. Here's an example: <img width="500" height="396" alt="Screenshot 2025-11-14 at 11 43@2x" src="https://github.com/user-attachments/assets/f4fc629a-6314-4da1-8c19-b60e1a09653b" /> Release Notes: - agent: Improved the interaction with errors by allowing links to be clickable.