Add createdAt to license keys

prisma/migrations/20260910170000_add_license_key_created_at/migration.sql

@@ -0,0 +1,2 @@
+-- AlterTable
+ALTER TABLE "LicenseKey" ADD COLUMN "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP;

prisma/schema.prisma

@@ -195,15 +195,16 @@ model ProclamationCategorySubscriptionLevelLegacy {
 }
 
 model LicenseKey {
-  id     String  @id @default(uuid())
-  key    String  @unique
-  active Boolean
-  userId String?
-  user   User?   @relation(fields: [userId], references: [id], onDelete: SetNull)
-  email  String?
+  id        String   @id @default(uuid())
+  key       String   @unique
+  active    Boolean
+  createdAt DateTime @default(now())
+  userId    String?
+  user      User?    @relation(fields: [userId], references: [id], onDelete: SetNull)
+  email     String?
   // Legacy subscription level. Retained in the database but unmanaged; hidden
   // from the client and left NULL.
-  level  String? @ignore
+  level     String?  @ignore
 
   @@index([userId])
   @@index([email])