refactor: rewrite ke codebase lama

prisma/migrations/20251116170005_add_batch_index_to_lowongan/migration.sql

@@ -0,0 +1,16 @@
+/*
+  Warnings:
+
+  - You are about to drop the column `batch` on the `lowongan_magang` table. All the data in the column will be lost.
+  - Added the required column `id_batch` to the `lowongan_magang` table without a default value. This is not possible if the table is not empty.
+
+*/
+-- AlterTable
+ALTER TABLE `lowongan_magang` DROP COLUMN `batch`,
+    ADD COLUMN `id_batch` INTEGER NOT NULL;
+
+-- CreateIndex
+CREATE INDEX `lowongan_magang_id_batch_foreign` ON `lowongan_magang`(`id_batch`);
+
+-- AddForeignKey
+ALTER TABLE `lowongan_magang` ADD CONSTRAINT `lowongan_magang_id_batch_foreign` FOREIGN KEY (`id_batch`) REFERENCES `batch`(`id`) ON DELETE RESTRICT ON UPDATE CASCADE;