Create an agent

curl --request POST \
  --url https://litellm-rust.onrender.com/api/agents \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "my-agent",
  "owner_id": "local-user",
  "runtime": "cursor",
  "model": "claude-opus-4-5",
  "system": "You are a helpful assistant.",
  "description": "<string>",
  "prompt": "<string>",
  "config": {},
  "tools": [
    {}
  ]
}
'

{
  "id": "<string>",
  "name": "my-agent",
  "model": "claude-opus-4-5",
  "system": "<string>",
  "tools": {},
  "config": {},
  "owner_id": "<string>",
  "status": "paused",
  "description": "<string>",
  "harness": "claude-code",
  "created_at": 123
}