Adds a per-port `signing_notification_recipients` setting (users / roles /
explicit emails via the existing RecipientPicker) and fires a branded
internal email on (a) each party signing and (b) full completion —
replicating the legacy "Document Signed" / "EOI Complete Update Status"
Activepieces flows that staff relied on.
- New branded template `signing-status-notification.tsx` (per-signer
progress + completion variants, deep-links into the CRM).
- New `sendSigningStatusNotification` resolver in document-signing-emails:
resolves recipients, falls back to the port reply-to (sales@) when the
list is empty so alerts are never silently dropped, per-recipient send.
- Wired into `handleRecipientSigned` (first signed transition) and
`handleDocumentCompleted` (idempotent, fires once) — reached by both the
Documenso webhook and the 5-min poll. Fully guarded so a notification
failure never undoes a signing side effect. Respects EMAIL_REDIRECT_TO.
- Admin UI: `Document signing alerts` recipients card in settings.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012iJPYbh5X53iBh9h7ffQoy
