{"ok":true,"stores":"the public calendar, and one sign-in record per account. Never a journal.","retention":"13 weeks of calendar","archivedWeeks":["2026-09-13","2026-09-20","2026-09-27","2026-10-04","2026-10-11","2026-10-18"],"routes":["/health","/calendar?week=this","/calendar?range=archive","POST /session"]}