Screens

A survey has two bookend screens authored separately from the question list:

• Welcome. Headline, subtext, CTA label. Lives at settings.survey.welcome_screen.
• Thank-you. Multiple thank-you variants are supported under settings.survey.thankyou_screens — pick one based on a predicate, or pick by matched outcome.

Each thank-you screen has headline, body, optional redirect_url, and an optional condition (the same predicate shape used by visibility and branching rules). The first matching variant wins.