Offerings can now bill weekly (a pending payment 24h before each lesson)
or monthly (one payment on the 1st for that month's lessons), alongside
one-time and full-term. Applies to both private lessons and group classes.
- Offering: new `weekly`/`monthly` billing modes + `isScheduledBilling()`
- Booking/enrolment defer payment for scheduled modes; a single lesson
booked after its due date has passed (e.g. an add-on in an already-billed
month) is charged at booking instead
- ScheduledBillingRunner: daily WP-Cron scan generates due payments across
four cases (private/group × weekly/monthly), deduped via lesson.payment_id
and payments.period_key
- PaymentDueMailer: one consolidated itemised email per student per scan
- Notice batch: payments emailed together share a reference; the admin
Payments queue groups them with a lump-sum total for e-transfer reconciliation
- Cancellation never voids a scheduled payment (Payment::isScheduled())
- Schema: us_payments gains due_date, period_key, notice_batch; USC_VERSION 1.2.0
composer test, composer lint, composer cs all pass.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
