Admin/team billing downgrader (#2040)

* downgrade func

* fix security hole lol

* fix query conditions

* - set to trial not free
- auto create stripe customer if missing
- fix production check

* Extracts downgrade logic to script, fixes ts-node conflicts with prisma

* Adds trialEndsAt field to users

* Updates trial/downgrade logic

* Typo

* Legibility fixes

* Update team-billing.ts

* Legibility improvements

Co-authored-by: Jamie <ijamespine@me.com>
Co-authored-by: Peer Richelsen <peeroke@gmail.com>
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

packages/prisma/schema.prisma

@@ -121,6 +121,7 @@ model User {
   hideBranding        Boolean              @default(false)
   theme               String?
   createdDate         DateTime             @default(now()) @map(name: "created")
+  trialEndsAt         DateTime?
   eventTypes          EventType[]          @relation("user_eventtype")
   credentials         Credential[]
   teams               Membership[]
@@ -353,6 +354,6 @@ model Webhook {
   createdAt       DateTime               @default(now())
   active          Boolean                @default(true)
   eventTriggers   WebhookTriggerEvents[]
-  user            User?                   @relation(fields: [userId], references: [id], onDelete: Cascade)
-  eventType       EventType?              @relation(fields: [eventTypeId], references: [id], onDelete: Cascade)
+  user            User?                  @relation(fields: [userId], references: [id], onDelete: Cascade)
+  eventType       EventType?             @relation(fields: [eventTypeId], references: [id], onDelete: Cascade)
 }