✨ Store auth sessions in database

server/prisma/schema.prisma

@@ -62,3 +62,9 @@ model Class {
   name  String @id @unique
   regex String
 }
+
+model Session {
+  token      String   @id @unique @default(uuid())
+  createdAt  DateTime @default(now())
+  validUntil DateTime
+}