feat(api): add daily generation credits reset cron job and user settings

prisma/migrations/20251225000000_add_generation_credits/migration.sql

@@ -0,0 +1,4 @@
+-- AlterTable
+ALTER TABLE "users" ADD COLUMN "dailyGenerationLimit" INTEGER NOT NULL DEFAULT 10;
+ALTER TABLE "users" ADD COLUMN "generationCreditsRemaining" INTEGER NOT NULL DEFAULT 10;
+ALTER TABLE "users" ADD COLUMN "generationCreditsResetAt" TIMESTAMP(3);

prisma/schema.prisma

@@ -26,6 +26,9 @@ model User {
   flagged                   Boolean                @default(false)
   flaggedAt                 DateTime?
   flaggedReason             String?
+  dailyGenerationLimit      Int                    @default(10)
+  generationCreditsRemaining Int                   @default(10)
+  generationCreditsResetAt  DateTime?
   accounts                  Account[]
   subscriptions  CategorySubscription[]
   changeRequests ChangeRequest[]