added seeder script

scripts/seeds/admin-user.js

@@ -0,0 +1,32 @@
+const { hashPassword } = require('next-basics');
+
+/* eslint-disable no-console */
+const { client: prismaClient } = require('@umami/prisma-client');
+
+async function seedAdminUser() {
+  const adminUserId = process.env.ADMIN_USER_ID;
+  const adminUsername = process.env.ADMIN_USERNAME;
+  const adminPassword = process.env.ADMIN_PASSWORD;
+
+  if (!adminUserId || !adminUsername || !adminPassword) {
+    console.error('Admin credentials are not set.');
+    process.exit(1);
+  }
+
+  await prismaClient.user.upsert({
+    where: { username: adminUsername },
+    update: {},
+    create: {
+      id: adminUserId,
+      username: adminUsername,
+      password: hashPassword(adminPassword),
+      role: 'admin',
+    },
+  });
+
+  console.log('Admin user seeded successfully.');
+}
+
+module.exports = {
+  seedAdminUser,
+};