Switch Prisma from SQLite to PostgreSQL for production deploy.

Co-authored-by: Cursor <cursoragent@cursor.com>

prisma/migrations_sqlite_archive/20260727140000_tenant_app_version/migration.sql

@@ -0,0 +1,5 @@
+-- AlterTable
+ALTER TABLE "tenants" ADD COLUMN "app_version" TEXT NOT NULL DEFAULT '1';
+
+-- DropTable
+DROP TABLE IF EXISTS "product_releases";