feat: add teams (#848)

## Description

Add support for teams which will allow users to collaborate on
documents.

Teams features allows users to:

- Create, manage and transfer teams
- Manage team members
- Manage team emails
- Manage a shared team inbox and documents

These changes do NOT include the following, which are planned for a
future release:

- Team templates
- Team API
- Search menu integration

## Testing Performed

- Added E2E tests for general team management
- Added E2E tests to validate document counts

## Checklist

- [X] I have tested these changes locally and they work as expected.
- [X] I have added/updated tests that prove the effectiveness of these
changes.
- [ ] I have updated the documentation to reflect these changes, if
applicable.
- [X] I have followed the project's coding style guidelines.

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

@@ -5,15 +5,37 @@ import { prisma } from '@documenso/prisma';
 export type CreateDocumentOptions = {
   title: string;
   userId: number;
+  teamId?: number;
   documentDataId: string;
 };
 
-export const createDocument = async ({ userId, title, documentDataId }: CreateDocumentOptions) => {
-  return await prisma.document.create({
-    data: {
-      title,
-      documentDataId,
-      userId,
-    },
+export const createDocument = async ({
+  userId,
+  title,
+  documentDataId,
+  teamId,
+}: CreateDocumentOptions) => {
+  return await prisma.$transaction(async (tx) => {
+    if (teamId !== undefined) {
+      await tx.team.findFirstOrThrow({
+        where: {
+          id: teamId,
+          members: {
+            some: {
+              userId,
+            },
+          },
+        },
+      });
+    }
+
+    return await tx.document.create({
+      data: {
+        title,
+        documentDataId,
+        userId,
+        teamId,
+      },
+    });
   });
 };