Returns the authenticated caller's unified activity list — a fan-out across tickets, project tasks, schedule entries, ad-hoc items, workflow tasks, time entries and notifications. Filter by activity type(s), open/closed status, priority, due-date window, free-text search and a date window; sort via `sortBy`/`sortDirection`. By default the result is paginated (ActivityListResponseV1). When `groupBy` is supplied the result is instead grouped server-side into ordered, counted buckets (ActivityGroupedResponseV1) and `page`/`pageSize` are ignored.
Success response 200 · schema ActivityListResponseV1
scheduleprojectTasktickettimeEntryworkflowTasknotificationdocumentlowmediumhighscheduleprojectTasktickettimeEntryworkflowTasknotificationdocument