[POST]
cacheable = false
auth_required = false
summary = "用户注册"
docstring = "创建新用户账号，用户名和邮箱必须唯一"
params = ["username: str", "password: str", "email: str", "full_name: str", "phone: str"]

[POST.response_model]
result = {type = "str", required = true}
message = {type = "str", required = true}
user_id = {type = "str", required = false}
timestamp = {type = "float", required = false}