`estimateDailyDoseCount` only special-cased FREQ=MONTHLY and FREQ=YEARLY.
A modern FREQ=WEEKLY rrule (the encoding the create path stores, with an
empty daysOfWeek) fell through to the legacy branch at seven days per week,
so a once-weekly injection counted as one dose per day. The detail card's
"lasts about N days" and the daily low-stock job — which share this math —
fired reorder alerts roughly seven times too early (fourteen for bi-weekly).
Parse FREQ=WEEKLY honouring INTERVAL and BYDAY count:
perDay += (times * bydayCount) / (7 * interval).
Marc-André Bombeck
3405bb6fd3