A content version. Versions live inside a page's versions/ directory,
each identified by a compact ISO timestamp (e.g. 20241001T080000Z).
Summary
Types
@type t() :: %Brix.Version{ published_at: DateTime.t() | nil, sections: [Brix.Section.t()] | nil, updated_at: DateTime.t() | nil, version: DateTime.t() | nil }