feat: add enterprise billing (#939)

## Description

Add support for enterprise billing plans.

Enterprise billing plans by default get access to everything early
adopters do:
- Unlimited teams
- Unlimited documents

They will also get additional features in the future.

## Notes

Pending webhook updates to support enterprise onboarding.
Rolled back env changes `NEXT_PUBLIC_PROJECT` since it doesn't seem to
work.

packages/lib/utils/billing.ts

@@ -2,15 +2,14 @@ import type { Subscription } from '.prisma/client';
 import { SubscriptionStatus } from '.prisma/client';
 
 /**
- * Returns true if there is a subscription that is active and is a community plan.
+ * Returns true if there is a subscription that is active and is one of the provided price IDs.
  */
-export const subscriptionsContainsActiveCommunityPlan = (
+export const subscriptionsContainsActivePlan = (
   subscriptions: Subscription[],
-  communityPlanPriceIds: string[],
+  priceIds: string[],
 ) => {
   return subscriptions.some(
     (subscription) =>
-      subscription.status === SubscriptionStatus.ACTIVE &&
-      communityPlanPriceIds.includes(subscription.priceId),
+      subscription.status === SubscriptionStatus.ACTIVE && priceIds.includes(subscription.priceId),
   );
 };