Clear and concise description of the problem

Hello, we'd like a way to show custom HTML messages in the test results sections in vitest UI. For example, we dynamically generate some artifacts in the tests and would like to reference them with a link from the UI test results.

PS: We love Vitest, especially the UI reporter with static file generation. Thanks for the fantastic work.

Suggested solution

Add some parameter or configuration option to the tests to inject these messages into the latest UI results.

Alternative

No response

Additional context

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that request the same feature to avoid creating a duplicate.