reminder_schedule (id, rule_kind, effective_from/_to, day_offsets CSV,
subject, body) added to SCHEMA (CREATE TABLE IF NOT EXISTS, exec'd on every
open = the additive migration path). resolveSchedule(db, ruleKind, today)
picks the row active on the business date (from<=today, to NULL or >today,
latest from wins) with code-constant fallbacks (quote_followup 3/7/14 +
spec s7 subject/body; invoice_overdue 7/15/30). seedIfEmpty seeds one
open-ended dated row per kind, audited in the same transaction.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Thomas Joise