curl -X POST https://memo.ariacompute.cn/v1/workspaces/ws_01a2b3c4d5e6/chat-sessions/sess_01a2b3c4d5e6/messages \
  -H "Authorization: Bearer <jwt>" \
  -H "Content-Type: application/json" \
  -d '{"role":"user","content":"我想了解 AriaMem 的定价。"}'

{
  "id": "msg_01a2b3c4d5e6",
  "session_id": "sess_01a2b3c4d5e6",
  "workspace_id": "ws_01a2b3c4d5e6",
  "role": "user",
  "content": "我想了解 AriaMem 的定价。",
  "seq": 0,
  "created_at": "2026-10-12T09:01:00Z"
}