An empty lifecycle model that callers can use as a fast fallback when the
corpus rebuild fails or exceeds its time budget. With this model every
lookup returns undefined so forecasts gracefully degrade to the
INSUFFICIENT_DATA heuristic basis without aborting the request.
An empty lifecycle model that callers can use as a fast fallback when the corpus rebuild fails or exceeds its time budget. With this model every lookup returns
undefinedso forecasts gracefully degrade to theINSUFFICIENT_DATAheuristic basis without aborting the request.