Return a presigned S3 PUT URL for uploading HAR recordings or screenshots.
POST /api/onboarding/presigned-upload/ Body: type: “har” | “screenshot” session_uuid: str (client-generated UUID; for “har” a new one is returned if missing) filename: str (optional, used for screenshots) Response: presigned_url: str s3_key: str session_uuid: str
Bearer authentication header of the form Bearer <token>, where <token> is your auth token.
No response body