Changes to Start an x402 payment session

removed the required property paymentRequirements from the response with the 200 status

removed the required property sessionId from the response with the 200 status

removed the optional property expiresAt from the response with the 200 status

api operation id startPaymentSession removed and replaced with

the endpoint scheme security BearerAuth was removed from the API

api tag Payment (x402) added

api tag Payment removed

removed the non-success response with the status 401

added the optional property capture_url to the response with the 200 status

added the optional property expires_at to the response with the 200 status

added the required property amount to the response with the 200 status

added the required property asset to the response with the 200 status

added the required property created_at to the response with the 200 status

added the required property network to the response with the 200 status

added the required property pay_to to the response with the 200 status

added the required property session_id to the response with the 200 status

added the required property status to the response with the 200 status