[POST]
summary = "进程插件示例：base64 小文件上传（经 Zenoh 写入 Minio）"
subject = "demo.storage.upload_bytes"
params = ["object_key: str", "data_b64: str"]
auth_required = false

[POST.response_model]
object_key = { type = "str", required = true }
size = { type = "int", required = true }
timestamp = { type = "float", required = true }