create migration file to delete bad seeded user data

Author: mxc-maggiechen

backend/typescript/migrations/20250705172630-delete-bad-seeded-user-data.ts

@@ -0,0 +1,18 @@
+import { Op } from "sequelize";
+import { Migration } from "../umzug";
+
+export const up: Migration = async ({ context: sequelize }) => {
+  await sequelize.getQueryInterface().bulkDelete("applicationdashboardtable", {
+    reviewerId: { [Op.in]: [1, 2] },
+  });
+  await sequelize.getQueryInterface().bulkDelete("admins", {
+    userId: { [Op.in]: [1, 2] },
+  });
+  await sequelize.getQueryInterface().bulkDelete("users", {
+    id: { [Op.in]: [1, 2] },
+  });
+};
+
+export const down: Migration = async ({ context: sequelize }) => {
+  // No down migration needed as this is a cleanup operation
+};