db123 577aee91fb refactor: remove dead code, DRY calendar navigation and helpers ...

- Fix Jalali calendar weekday offset in buildCalendarMonth
- Remove unused gregorianDateKey function and PairCount field
- Replace inline export month title with formatMonthTitle
- Extract navMonth helper for prev/next month navigation
- Extract sendOrEdit helper for send-vs-edit message pattern
- Extract monthGregorianRange helper to simplify editCalendar 3-way switch
- Replace export displayDate conversion with formatDateForCalendar

2026-06-24 10:54:06 +03:30

44 KiB

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