Chat Motion Overlay Turn chat content into a configurable motion overlay clip instead of a single hard-coded WeChat mock. Workflow 1. Normalize the chat input. - If the user gives a screenshot, extract the visible messages into the transcript format in . - If the user gives plain text, keep one message per beat and preserve exact wording when authenticity matters. - For screenshots, use visible avatars as clues for participant count and message grouping, but do not crop or recreate avatar images by default. Infer participants and sides, then render with preset avatars unless the user provides…