Produktivität & Integration
Calendar Math
Designs and implements complete calendar and timekeeping calculation modules for the Library of Time project, including algorithms, date conversions, and tests. Use when working on calendar logic, adding a new calendar, or one-shotting an entire calendar implementation from a prompt. Treat `CalendarAPI/Calendars/*`, `CalendarAPI/Timekeeping/*`, and `CalendarAPI/Other/*` as a single Calendar API layer.