Add more information about playwright expect without message to the allure report

If the test passes, the expect looks like this

I would like to see more information about the actual value and expected

Start by locating the Playwright integration that turns expect results into Allure report steps or attachments. Reproduce an expect without a message and inspect the generated report to identify where actual and expected values are currently omitted. Done means the report includes that information for passing expectations, with coverage for the relevant Playwright behavior.

Written by the indexing model from the issue text.