feat: persist fields and recipients for document editing

packages/lib/server-only/field/get-fields-for-document.ts

@@ -0,0 +1,19 @@
+import { prisma } from '@documenso/prisma';
+
+export interface GetFieldsForDocumentOptions {
+  documentId: number;
+  userId: number;
+}
+
+export const getFieldsForDocument = async ({ documentId, userId }: GetFieldsForDocumentOptions) => {
+  const fields = await prisma.field.findMany({
+    where: {
+      documentId,
+      Document: {
+        userId,
+      },
+    },
+  });
+
+  return fields;
+};