feat: add housekeeping module for household staff management

* Adding flexible reminder options to birthdays

* Fix database migration merge conflict

* Truncate calendar popup descriptions

* Log app version on backend startup

* Add host-mounted data and backup folders

* feat: add housekeeping module

* fix: align housekeeping UI and add task creation

* refactor: rebuild housekeeping experience

* feat: support multiple housekeeping staff

* feat: integrate housekeeping visits with calendar

* feat: refine housekeeping visits and payments

* feat: add housekeeping staff visit logs

* feat: add housekeeping receipts and document folders

* feat: localize housekeeping folders and chores

* feat: refine housekeeping tabs and document folders

* fix: sync housekeeping tab active state

* feat: use configured app name in onboarding and manifest

server/services/birthdays.js

@@ -57,8 +57,7 @@ function getOffsetMinutes(birthday) {
 
 function birthdayReminderAt(birthDate, offsetMin = 0, from = new Date()) {
   const next = nextBirthdayDate(birthDate, from);
-  const baseTime = new Date(`${next}T12:00:00Z`).getTime();
-  return new Date(baseTime - (offsetMin || 0) * 60000).toISOString();
+  return `${next}T12:00:00Z`;
 }
 
 function eventTitle(name) {