Launches a Chromium browser context with video and trace recording enabled, and creates an evidence directory under .evidence/<featureName>/<timestamp>/ in the current project. Returns a sessionId to pass to the other tools. Call finish_evidence_session when done to finalize the recording.

Navigates the session's page to a URL. If the URL is relative, it resolves against the session's baseUrl.

Clicks an element, located either by CSS/text selector or by ARIA role (optionally with name).

Fills a form field located by CSS selector with the given value.

Waits for an element (located by CSS selector or visible text) to reach the given state.

Takes a screenshot and saves it immediately into the evidence directory, so it survives even if the session later errors.

Closes the browser context (finalizing the video), stops tracing, writes manifest.json, and returns the evidence folder path. Always call this at the end of a verification run.