@spec daily_activity(integer()) :: [map()]

Returns daily prompt-run and suite-run counts for the requested date window.

Missing dates are included with zero counts. Non-positive windows return an empty list.

@spec list_recent_activity(integer()) :: [map()]

Lists the most recent prompt and suite runs in one normalized activity feed.

@spec normalize_suite_run(Aludel.Evals.SuiteRun.t()) :: map()

Converts a preloaded suite run to the normalized activity-feed shape.