fix: use enum for type

packages/lib/server-only/template/create-template.ts

@@ -1,6 +1,7 @@
 import type { z } from 'zod';
 
 import { prisma } from '@documenso/prisma';
+import { FolderType } from '@documenso/prisma/generated/types';
 import { TemplateSchema } from '@documenso/prisma/generated/zod/modelSchema//TemplateSchema';
 import type { TCreateTemplateMutationSchema } from '@documenso/trpc/server/template-router/schema';
 
@@ -44,9 +45,13 @@ export const createTemplate = async ({
     }
   }
 
-  const folder = await prisma.folder.findFirstOrThrow({
+  let folder = null;
+
+  if (folderId) {
+    folder = await prisma.folder.findFirst({
       where: {
         id: folderId,
+        type: FolderType.TEMPLATE,
         ...(teamId
           ? {
               team: {
@@ -65,9 +70,10 @@ export const createTemplate = async ({
       },
     });
 
-  if (!team) {
+    if (!folder) {
       throw new AppError(AppErrorCode.NOT_FOUND);
     }
+  }
 
   return await prisma.template.create({
     data: {
@@ -75,7 +81,7 @@ export const createTemplate = async ({
       userId,
       templateDocumentDataId,
       teamId,
-      folderId: folder.id,
+      folderId: folder?.id,
       templateMeta: {
         create: {
           language: team?.teamGlobalSettings?.documentLanguage,