@spec child_of(map(), String.t()) :: map()

Creates a child trace from a parent trace context.

The child trace:

• Inherits the same trace_id
• Gets a new span_id
• Has parent_span_id set to the parent's span_id
• Has causation_id set to the provided value (typically the parent signal's id)

@spec get(Jido.Signal.t()) :: map() | nil

Gets trace data from a signal.

@spec new_root() :: map()

Creates a new root trace with fresh trace_id and span_id.

@spec put(Jido.Signal.t(), map()) :: {:ok, Jido.Signal.t()} | {:error, term()}

Attaches trace data to a signal using the correlation extension.