tier plans improving

Signed-off-by: Kenneth Obsequio <k80308392@gmail.com>

database/migrations/20270101000082-add-tier-categories-special.js

@@ -0,0 +1,15 @@
+'use strict';
+
+module.exports = {
+  async up(queryInterface, Sequelize) {
+    await queryInterface.addColumn('tier_categories', 'is_special', {
+      type: Sequelize.BOOLEAN,
+      allowNull: false,
+      defaultValue: false,
+    });
+  },
+
+  async down(queryInterface) {
+    await queryInterface.removeColumn('tier_categories', 'is_special');
+  },
+};