Step Environment

在环境中执行工具调用步骤（支持流式和非流式）

Request Body — REQUIRED
session_id Session Id — REQUIRED
tool_name Tool Name — REQUIRED
tool_args object
env_vars Env Vars
stream Stream
request_id Request Id
task_id Task Id
user_id User Id

Responses
200 Successful Response Schema — OPTIONAL undefined
422 Validation Error Schema — OPTIONAL detail object[] — OPTIONAL loc undefined[] msg Message type Error Type