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/team/find-team-invoices.ts

@@ -0,0 +1,52 @@
+import { getInvoices } from '@documenso/ee/server-only/stripe/get-invoices';
+import { TEAM_MEMBER_ROLE_PERMISSIONS_MAP } from '@documenso/lib/constants/teams';
+import { AppError, AppErrorCode } from '@documenso/lib/errors/app-error';
+import { prisma } from '@documenso/prisma';
+
+export interface FindTeamInvoicesOptions {
+  userId: number;
+  teamId: number;
+}
+
+export const findTeamInvoices = async ({ userId, teamId }: FindTeamInvoicesOptions) => {
+  const team = await prisma.team.findUniqueOrThrow({
+    where: {
+      id: teamId,
+      members: {
+        some: {
+          userId,
+          role: {
+            in: TEAM_MEMBER_ROLE_PERMISSIONS_MAP['MANAGE_TEAM'],
+          },
+        },
+      },
+    },
+  });
+
+  if (!team.customerId) {
+    throw new AppError(AppErrorCode.NOT_FOUND, 'Team has no customer ID.');
+  }
+
+  const results = await getInvoices({ customerId: team.customerId });
+
+  if (!results) {
+    return null;
+  }
+
+  return {
+    ...results,
+    data: results.data.map((invoice) => ({
+      invoicePdf: invoice.invoice_pdf,
+      hostedInvoicePdf: invoice.hosted_invoice_url,
+      status: invoice.status,
+      subtotal: invoice.subtotal,
+      total: invoice.total,
+      amountPaid: invoice.amount_paid,
+      amountDue: invoice.amount_due,
+      created: invoice.created,
+      paid: invoice.paid,
+      quantity: invoice.lines.data[0].quantity ?? 0,
+      currency: invoice.currency,
+    })),
+  };
+};