curl -X POST 'https://app.memorylake.cn/openapi/memorylake/router/openai/v1/chat/completions?boundary_id=bnd-xxxxxx' \
  -H 'Authorization: Bearer sk_xxxxxx' \
  -H 'Content-Type: application/json' \
  -d '{
    "messages": [
      {
        "content": "What did I say my favourite city was?",
        "role": "user"
      }
    ],
    "model": "gpt-4o-mini"
  }'

{
  "choices": [
    {
      "finish_reason": "stop",
      "index": 0,
      "message": {
        "content": "You said your favourite city is Lisbon.",
        "role": "assistant"
      }
    }
  ],
  "created": 1760000000,
  "id": "chatcmpl-abc123",
  "model": "gpt-4o-mini",
  "object": "chat.completion",
  "usage": {
    "completion_tokens": 11,
    "prompt_tokens": 412,
    "total_tokens": 423
  }
}