Changes to Create an agent run and stream the response

the request property messages/items/content/items/annotations/items/end_index became nullable

the request property messages/items/content/items/annotations/items/snippets became nullable

the request property messages/items/content/items/annotations/items/snippets/items/page_number became nullable

the request property messages/items/content/items/annotations/items/start_index became nullable

endpoint deprecated

added the new SANDBOX_EGRESS enum value to the authenticationSuggestions/items/allOf[#/components/schemas/ServerToolBase]/requestType response property for the response status 422

the response's body type changed from string to object for status 422

added the required property authenticationSuggestions to the response with the 422 status

added the required property message to the response with the 422 status