feat: migrate templates and documents to envelope model

packages/lib/server-only/recipient/get-next-pending-recipient.ts

@@ -1,5 +1,9 @@
+import { EnvelopeType } from '@prisma/client';
+
 import { prisma } from '@documenso/prisma';
 
+import { mapDocumentIdToSecondaryId } from '../../utils/envelope';
+
 export const getNextPendingRecipient = async ({
   documentId,
   currentRecipientId,
@@ -9,7 +13,10 @@ export const getNextPendingRecipient = async ({
 }) => {
   const recipients = await prisma.recipient.findMany({
     where: {
-      documentId,
+      envelope: {
+        type: EnvelopeType.DOCUMENT,
+        secondaryId: mapDocumentIdToSecondaryId(documentId),
+      },
     },
     orderBy: [
       {