Closes the WS-A coverage gap: due-dates.test.ts proved the manual-issue and
convert paths but relied on code inspection for recurring generation. A manual
recurring plan now runs through runDailyScan and the generated invoice's
due_date is asserted as doc_date + seeded 15-day terms. Suite 310/310.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- document.due_date additive column; billing.payment_terms_days seeded (15)
- issueDocument stamps doc_date+terms on INVOICE when absent — covers manual
issue, convert-and-send and recurring generation in one place
- drafts accept dueDate (INVOICE only, validated); composer date field
auto-filled from GET /settings/billing; invoice PDF prints Due Date
- overdue scan + reminder anchor on COALESCE(due_date, doc_date); email says
'was due on X and is now N day(s) overdue' when a due date exists
- legacy fixtures pinned to due_date=NULL (sanctioned: they test the doc_date
anchor); 9 new tests; suite 309/309 across 60 files
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Thomas Joise