POST /v1/chat/completions：OpenAI 兼容的聊天推理

curl -H 'Authorization: Bearer $ARIA_ROUTER_KEY' \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "ariacompute/semantic-auto",
    "messages": [{"role": "user", "content": "Hello"}],
    "temperature": 0.7
  }' \
  http://<router-host>:8080/v1/chat/completions

{
  "id": "chatcmpl-...",
  "object": "chat.completion",
  "created": 1710000000,
  "model": "ariacompute/semantic-auto",
  "choices": [
    {
      "index": 0,
      "message": {
        "role": "assistant",
        "content": "Hello! How can I help you today?"
      },
      "finish_reason": "stop"
    }
  ]
}

curl -H 'Authorization: Bearer $ARIA_ROUTER_KEY' \
  -H 'Content-Type: application/json' \
  -d '{
    "model": "ariacompute/semantic-auto",
    "messages": [{"role": "user", "content": "Hello"}],
    "stream": true
  }' \
  http://<router-host>:8080/v1/chat/completions

data: {"id":"chatcmpl-...","object":"chat.completion.chunk", ... }

data: [DONE]