Use this for new customer bookings from an external agent, whether the customer already has a Homejourney account or not. After the customer confirms the selected provider package, or a Homejourney catalog price (price_source launch_guide with platform_unit_count), the exact price, schedule, address, customer-provided email and mobile number, and contact consent, it returns one branded Homejourney review-and-authorization link. No OTP is required. The customer approves their card for the exact booking without a charge; for a provider package Homejourney charges it only after verified completion, and PayNow can instead be requested after completion. A catalog price takes a card only: nothing is charged until a verified provider accepts, the amount is held then and charged when the job is done, and the booking is cancelled at no charge if no provider accepts. A booking appears in Main after sign-in with the same verified email or WhatsApp number.