added prisma + nextAuth

packages/database/prisma/client.ts

@@ -0,0 +1,7 @@
+import { PrismaClient } from '../generated/client';
+
+const globalForPrisma = global as unknown as { prisma: PrismaClient };
+
+export const prisma = globalForPrisma.prisma || new PrismaClient();
+
+if (process.env.NODE_ENV !== 'production') globalForPrisma.prisma = prisma;