Makes the built-in dunning flow a faithful replacement for the hardcoded
reminder ladder instead of a disabled representation:
- queue_payment_check action delegates to invoiceService.queuePaymentCheckEmail,
so the proven confirm + reminder_level + Mahngebühr state machine
(recordPaymentCheckAction) stays the single source of truth — the workflow
only decides WHEN the payment-check email (the gate) fires.
- runScheduledTasks now SKIPS the hardcoded reminder batches when workflows is
on AND the invoice_dunning built-in is enabled, so the two never double-send.
- The built-in graph is re-authored to the delegation model (wait→due, grace,
loop: check-paid → payment-check → wait-gap), dropping the redundant gate +
generic reminder emails. A SEED_VERSION re-seeds the disabled, never-activated
built-in on boot but never touches an enabled/edited one.
Tests: delegation graph shape, re-seed-when-stale, enabled-protection (9 engine
+ 8 route = 17 passing).
Boot self-heal seeds the corrected gate-in-loop dunning graph (wait→due,
grace wait, invoice_paid check, confirm-no-payment gate, bounded reminder
loop with re-check, final notice) keyed on builtin_key='invoice_dunning',
sized from the reminder_first/second_days settings. Seeded DISABLED and
is_builtin: live reminder behaviour is UNCHANGED (the hardcoded scheduler
ladder still runs) — enabling it pre-cutover would double-send, so the
engine cutover is a deliberate follow-up. Idempotent (preserves admin edits).
Built-ins refuse delete (enforced in the CRUD route). Test covers seed shape
+ idempotency.
gate_setup action creates a workflow_approvals row (single-use token stored
as SHA-256 hash) and emails the admin confirm/deny links immediately
(internal mail, no business-hours floor). actByToken / actById finalize the
approval and resume the run down the matching confirm/deny edge; both are
idempotent (a second click → 'already recorded') and respect expiry. Public
GET /api/public/workflow-approvals/:token/:action returns a small HTML
confirmation page (clickable from email, single-use so prefetch can't
double-act). listPending backs the webview inbox (wired in the CRUD phase).
Test covers gate→approval→email→token-confirm→resume + idempotency.
Adds send_email (INTERNAL/admin = immediate, EXTERNAL/customer = business-
hours floor via queueEmail's respectBusinessHours) and the invoice_paid
condition (paid_at / status / cumulative paid_amount). Registers the
prepare_quote/contract/event/gallery/invoice + send_document + reserve_date
document actions as recognized-but-not-yet-wired (record an observable
skipped step rather than crashing a flow). index.js side-effect-imports the
handlers. Tests cover the customer-mail routing + the invoice_paid logic.
Adds engine.runDueWaits() — polls waiting runs whose wake_at has passed and
resumes the ones parked on a wait node (gate timeouts handled later by the
approvals layer). Flag-gated (fails closed when workflows is off). Wired into
the existing hourly invoiceScheduler tick in its own try/catch so a workflow
failure never suppresses the invoice/reminder jobs. Test covers not-due vs
elapsed resume.
Graph executor that walks nodes/edges per run: trigger, condition/branch
(registered conditions → yes/no edge), bounded loop (counter in context +
maxIterations cap), wait (status=waiting + wake_at for the scheduler), gate
(status=waiting; resumed via confirm/deny edge), action/webhook (registered
handlers). emitWorkflowEvent creates one idempotent run per matching enabled
workflow (unique dedup_key) and fails CLOSED if the flag system is
unavailable; never throws into callers (safe to call after commit). Every
node records a workflow_run_steps row. Registry seeds primitive
conditions (always/never/expr) + actions (noop/log/set_context). Integration
test covers loop+wait resume, gate confirm, and dedup.
Luca