@type t() :: %Vibe.Plugins.WebSearch.SearchItem{
  author: String.t() | nil,
  highlights: [String.t()],
  metadata: map(),
  published_at: String.t() | nil,
  score: number() | nil,
  summary: String.t() | nil,
  text: String.t(),
  title: String.t(),
  url: String.t() | nil
}