Container chat completions

curl --request POST \
  --url http://localhost:8000/v1/chat/completions \
  --header 'Content-Type: application/json' \
  --data '{
  "messages": [
    {
      "content": "You are a helpful assistant.",
      "role": "system"
    },
    {
      "content": "Hello!",
      "role": "user"
    }
  ]
}'

{
  "id": "chatcmpl-4b71d12c86d94e719c7e3984a7bb7941",
  "object": "chat.completion",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": "Hello there, how may I assist you today?"
      },
      "finish_reason": "stop"
    }
  ],
  "usage": {
    "prompt_tokens": 9,
    "completion_tokens": 11,
    "total_tokens": 20
  },
  "created": 1735722153
}