Changes to Create a chat

added the non-success response with the status 402

added the new conflict enum value to the type response property for the response status 400

added the new conflict enum value to the type response property for the response status 401

added the new conflict enum value to the type response property for the response status 403

added the new conflict enum value to the type response property for the response status 429

added the new conflict enum value to the type response property for the response status 500

added the new payment_required enum value to the type response property for the response status 400

added the new payment_required enum value to the type response property for the response status 401

added the new payment_required enum value to the type response property for the response status 403

added the new payment_required enum value to the type response property for the response status 429

added the new payment_required enum value to the type response property for the response status 500

added the new optional request property externalId

added the optional property data/agents to the response with the 200 status

added the optional property data/customers to the response with the 200 status

added the optional property data/externalId to the response with the 200 status

added the optional property data/policyIds to the response with the 200 status

added the optional property data/properties to the response with the 200 status

added the optional property data/simulationJobId to the response with the 200 status

added the optional property data/simulationRunPlanJobId to the response with the 200 status